{ "version": "2.2", "instance": { "ffin-20260331.htm": { "nsprefix": "ffin", "nsuri": "http://www.ffin.com/20260331", "dts": { "inline": { "local": [ "ffin-20260331.htm" ] }, "schema": { "local": [ "ffin-20260331.xsd" ], "remote": [ "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://www.xbrl.org/lrr/arcrole/esma-arcrole-2018-11-21.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/2023/calculation-1.1.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://www.xbrl.org/dtr/type/2024-01-31/types.xsd", "https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd", "https://xbrl.fasb.org/srt/2025/elts/srt-roles-2025.xsd", "https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd", "https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd", "https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd", "https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd", "https://xbrl.sec.gov/country/2025/country-2025.xsd", "https://xbrl.sec.gov/dei/2025/dei-2025.xsd", "https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd", "https://xbrl.sec.gov/ecd/2025/ecd-sub-2025.xsd", "https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd" ] } }, "keyStandard": 249, "keyCustom": 88, "axisStandard": 24, "axisCustom": 0, "memberStandard": 51, "memberCustom": 23, "hidden": { "total": 4, "http://xbrl.sec.gov/dei/2025": 4 }, "contextCount": 535, "entityCount": 1, "segmentCount": 74, "elementCount": 747, "unitCount": 7, "baseTaxonomies": { "http://fasb.org/us-gaap/2025": 1658, "http://xbrl.sec.gov/dei/2025": 29, "http://xbrl.sec.gov/ecd/2025": 4, "http://fasb.org/srt/2025": 3 }, "report": { "R1": { "role": "http://www.ffin.com/20260331/taxonomy/role/CoverPage", "longName": "75000 - Document - Cover Page", "shortName": "Cover Page", "isDefault": "true", "groupType": "document", "subGroupType": "", "menuCat": "Cover", "order": "1", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R2": { "role": "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited", "longName": "75010 - Statement - Consolidated Balance Sheets (Unaudited)", "shortName": "Consolidated Balance Sheets (Unaudited)", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "2", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:CashAndDueFromBanks", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:CashCashEquivalentsAndFederalFundsSold", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R3": { "role": "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnauditedParenthetical", "longName": "75020 - Statement - Consolidated Balance Sheets (Unaudited) (Parenthetical)", "shortName": "Consolidated Balance Sheets (Unaudited) (Parenthetical)", "isDefault": "false", "groupType": "statement", "subGroupType": "parenthetical", "menuCat": "Statements", "order": "3", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:CommonStockParOrStatedValuePerShare", "unitRef": "U_UnitedStatesOfAmericaDollarsShare", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R4": { "role": "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited", "longName": "75030 - Statement - Consolidated Statements of Earnings (Unaudited)", "shortName": "Consolidated Statements of Earnings (Unaudited)", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "4", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R5": { "role": "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited", "longName": "75040 - Statement - Consolidated Statements of Comprehensive Earnings (Loss) (Unaudited)", "shortName": "Consolidated Statements of Comprehensive Earnings (Loss) (Unaudited)", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "5", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:NetIncomeLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R6": { "role": "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited", "longName": "75050 - Statement - Consolidated Statements of Shareholders' Equity (Unaudited)", "shortName": "Consolidated Statements of Shareholders' Equity (Unaudited)", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "6", "firstAnchor": { "contextRef": "C_f2062e83-971c-4c3f-a4ae-a67449609ad2", "name": "us-gaap:StockholdersEquity", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_f2062e83-971c-4c3f-a4ae-a67449609ad2", "name": "us-gaap:StockholdersEquity", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R7": { "role": "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical", "longName": "75060 - Statement - Consolidated Statements of Shareholders' Equity (Parenthetical)", "shortName": "Consolidated Statements of Shareholders' Equity (Parenthetical)", "isDefault": "false", "groupType": "statement", "subGroupType": "parenthetical", "menuCat": "Statements", "order": "7", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:CommonStockDividendsPerShareDeclared", "unitRef": "U_UnitedStatesOfAmericaDollarsShare", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": null }, "R8": { "role": "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited", "longName": "75070 - Statement - Consolidated Statements of Cash Flows (Unaudited)", "shortName": "Consolidated Statements of Cash Flows (Unaudited)", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "8", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ProfitLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ProfitLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R9": { "role": "http://xbrl.sec.gov/ecd/role/PvpDisclosure", "longName": "995410 - Disclosure - Pay vs Performance Disclosure", "shortName": "Pay vs Performance Disclosure", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "9", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:NetIncomeLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": null }, "R10": { "role": "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements", "longName": "995445 - Disclosure - Insider Trading Arrangements", "shortName": "Insider Trading Arrangements", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "10", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ecd:Rule10b51ArrAdoptedFlag", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ecd:Rule10b51ArrAdoptedFlag", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R11": { "role": "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPolicies", "longName": "995455 - Disclosure - Summary of Significant Accounting Policies", "shortName": "Summary of Significant Accounting Policies", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "11", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R12": { "role": "http://www.ffin.com/20260331/taxonomy/role/Securities", "longName": "995465 - Disclosure - Securities", "shortName": "Securities", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "12", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R13": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLosses", "longName": "995475 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "13", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R14": { "role": "http://www.ffin.com/20260331/taxonomy/role/LoansHeldForSale", "longName": "995485 - Disclosure - Loans Held for Sale", "shortName": "Loans Held for Sale", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "14", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:LoansHeldForSaleTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:LoansHeldForSaleTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R15": { "role": "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstruments", "longName": "995495 - Disclosure - Derivative Financial Instruments", "shortName": "Derivative Financial Instruments", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "15", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R16": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreements", "longName": "995505 - Disclosure - Borrowings and Repurchase Agreements", "shortName": "Borrowings and Repurchase Agreements", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "16", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ShortTermDebtTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ShortTermDebtTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R17": { "role": "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxes", "longName": "995515 - Disclosure - Income Taxes", "shortName": "Income Taxes", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "17", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R18": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensation", "longName": "995525 - Disclosure - Stock Based Compensation", "shortName": "Stock Based Compensation", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "18", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R19": { "role": "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosures", "longName": "995535 - Disclosure - Fair Value Disclosures", "shortName": "Fair Value Disclosures", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "19", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:FairValueDisclosuresTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:FairValueDisclosuresTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R20": { "role": "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies", "longName": "995565 - Disclosure - Summary of Significant Accounting Policies (Policies)", "shortName": "Summary of Significant Accounting Policies (Policies)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "policies", "menuCat": "Policies", "order": "20", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:NatureOfOperationsPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:SignificantAccountingPoliciesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:NatureOfOperationsPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:SignificantAccountingPoliciesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R21": { "role": "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesTables", "longName": "995575 - Disclosure - Summary of Significant Accounting Policies (Tables)", "shortName": "Summary of Significant Accounting Policies (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "21", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:EarningsPerSharePolicyTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:EarningsPerSharePolicyTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R22": { "role": "http://www.ffin.com/20260331/taxonomy/role/SecuritiesTables", "longName": "995585 - Disclosure - Securities (Tables)", "shortName": "Securities (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "22", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R23": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables", "longName": "995595 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses (Tables)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "23", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:LoansAndLeasesReceivableGrossCarryingAmountTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:LoansAndLeasesReceivableGrossCarryingAmountTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R24": { "role": "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsTables", "longName": "995605 - Disclosure - Derivative Financial Instruments (Tables)", "shortName": "Derivative Financial Instruments (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "24", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R25": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsTables", "longName": "995615 - Disclosure - Borrowings and Repurchase Agreements (Tables)", "shortName": "Borrowings and Repurchase Agreements (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "25", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfShortTermDebtTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:ShortTermDebtTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfShortTermDebtTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:ShortTermDebtTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R26": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationTables", "longName": "995625 - Disclosure - Stock Based Compensation (Tables)", "shortName": "Stock Based Compensation (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "26", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R27": { "role": "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresTables", "longName": "995635 - Disclosure - Fair Value Disclosures (Tables)", "shortName": "Fair Value Disclosures (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "27", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R28": { "role": "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail", "longName": "995655 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail)", "shortName": "Summary of Significant Accounting Policies - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "28", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:NumberOfBankLocations", "unitRef": "U_Location", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "ffin:NatureOfOperationsPolicyTextBlock", "div", "us-gaap:SignificantAccountingPoliciesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:NumberOfBankLocations", "unitRef": "U_Location", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "ffin:NatureOfOperationsPolicyTextBlock", "div", "us-gaap:SignificantAccountingPoliciesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R29": { "role": "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail", "longName": "995665 - Disclosure - Summary of Significant Accounting Policies - Computation of Basic EPS to Dilutive EPS (Detail)", "shortName": "Summary of Significant Accounting Policies - Computation of Basic EPS to Dilutive EPS (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "29", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "div", "us-gaap:EarningsPerSharePolicyTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "div", "us-gaap:EarningsPerSharePolicyTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R30": { "role": "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail", "longName": "995695 - Disclosure - Securities - Additional Information (Detail)", "shortName": " Securities - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "30", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:MaturityOfTimeDeposits", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:MaturityOfTimeDeposits", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R31": { "role": "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail", "longName": "995705 - Disclosure - Securities - Summary of Available-for-Sale Securities (Detail)", "shortName": "Securities - Summary of Available-for-Sale Securities (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "31", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ix:continuation", "div", "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R32": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail", "longName": "995715 - Disclosure - Securities - Carrying Value and Estimated Fair Value of Available-for-Sale Securities (Detail)", "shortName": "Securities - Carrying Value and Estimated Fair Value of Available-for-Sale Securities (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "32", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:AvailableForSaleSecuritiesDebtMaturitiesWithInOneYear", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "div", "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R33": { "role": "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "longName": "995745 - Disclosure - Securities - Continuous Unrealized-Loss Position of Available-for-Sale Securities (Detail)", "shortName": "Securities - Continuous Unrealized-Loss Position of Available-for-Sale Securities (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "33", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R34": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "longName": "995755 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Loans Held-for-Investment by portfolio segment (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Loans Held-for-Investment by portfolio segment (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "34", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:LoansAndLeasesReceivablesGross", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:LoansAndLeasesReceivableGrossCarryingAmountTableTextBlock", "div", "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": null }, "R35": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "longName": "995765 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Schedule of amortized cost basis of loans on nonaccrual status and loans past due over 90 days still accruing (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Schedule of amortized cost basis of loans on nonaccrual status and loans past due over 90 days still accruing (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "35", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "div", "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "div", "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R36": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "longName": "995775 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Past Due Loans (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Past Due Loans (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "36", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:NotesReceivableGross", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfInternalRatingsOfItsLoansHeldForInvestmentByPortfolioSegmentsTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_bbcc41f7-bb62-427a-9dbe-bdcec4a8c09f", "name": "us-gaap:NotesReceivableGross", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:PastDueFinancingReceivablesTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R37": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "longName": "995795 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Summary of information on the allowance for credit losses (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Summary of information on the allowance for credit losses (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "37", "firstAnchor": { "contextRef": "C_52341c40-5530-48c9-99ef-81fd135586c2", "name": "ffin:LoanAndLeaseReceivableAllowance", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_52341c40-5530-48c9-99ef-81fd135586c2", "name": "ffin:LoanAndLeaseReceivableAllowance", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R38": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails", "longName": "995805 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Summary of information on the allowance for credit losses (Parenthetical) (Details)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Summary of information on the allowance for credit losses (Parenthetical) (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "parenthetical", "menuCat": "Details", "order": "38", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:ProvisionForOtherCreditLosses", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "link:footnote", "p", "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:OffBalanceSheetCreditLossLiabilityChangeInMethodCreditLossExpenseReversal", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "link:footnote", "p", "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R39": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "longName": "995815 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Loans that are Individually Evaluated for Credit Losses (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Loans that are Individually Evaluated for Credit Losses (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "39", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:FinancingReceivableIndividuallyEvaluatedWithAllowanceForCreditLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ImpairedFinancingReceivabletabletextblock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:FinancingReceivableIndividuallyEvaluatedWithAllowanceForCreditLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ImpairedFinancingReceivabletabletextblock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R40": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "longName": "995825 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Allowance for Loan Losses by Portfolio Segment (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Allowance for Loan Losses by Portfolio Segment (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "40", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:AllowanceForCreditLossesOnLoansIndividuallyEvaluated", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfAllowanceForLoanLossByPortfolioSegmentTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:AllowanceForCreditLossesOnLoansIndividuallyEvaluated", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfAllowanceForLoanLossByPortfolioSegmentTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R41": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "longName": "995835 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Additional Information (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "41", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:LoansStillAccruingPastDueNinetyDaysOrMoreRestructuredLoansForeclosedAssets", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:LoansStillAccruingPastDueNinetyDaysOrMoreRestructuredLoansForeclosedAssets", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R42": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "longName": "995845 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Company's Internal Ratings of its Loans Held-for-Investment, Including The Year of Origination, by Portfolio Segments (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Company's Internal Ratings of its Loans Held-for-Investment, Including The Year of Origination, by Portfolio Segments (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "42", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfInternalRatingsOfItsLoansHeldForInvestmentByPortfolioSegmentsTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_ddadea87-ac2d-4f82-a26c-8630ed83ba0c", "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfInternalRatingsOfItsLoansHeldForInvestmentByPortfolioSegmentsTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R43": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "longName": "995855 - Disclosure - Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Company's gross charge-offs by origination year and loan class (Detail)", "shortName": "Loans Held-for-Investment and Allowance for Credit Losses - Schedule of Company's gross charge-offs by origination year and loan class (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "43", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfInternalRatingsOfItsLoansHeldForInvestmentByPortfolioSegmentsTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_0967a9d8-e4f0-4764-b4e8-2c1d4e61294c", "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R44": { "role": "http://www.ffin.com/20260331/taxonomy/role/LoansHeldForSaleAdditionalInformationDetail", "longName": "995895 - Disclosure - Loans Held for Sale - Additional Information (Detail)", "shortName": "Loans Held for Sale - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "44", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:LoansReceivableHeldForSaleNetNotPartOfDisposalGroup", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "ffin:LoansHeldForSaleTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:LoansHeldForSaleValuedAtTheLowerOfCostOrFairValue", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "ffin:LoansHeldForSaleTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R45": { "role": "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail", "longName": "995905 - Disclosure - Derivative Financial Instruments - Summary of Outstanding Notional Balances and Fair Values of Outstanding Derivative Positions (Detail)", "shortName": "Derivative Financial Instruments - Summary of Outstanding Notional Balances and Fair Values of Outstanding Derivative Positions (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "45", "firstAnchor": { "contextRef": "C_247b56b9-4beb-4bb0-9da8-2a77c0ef381e", "name": "us-gaap:DerivativeNotionalAmount", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock", "div", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_247b56b9-4beb-4bb0-9da8-2a77c0ef381e", "name": "us-gaap:DerivativeNotionalAmount", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock", "div", "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R46": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsScheduleOfBorrowingsDetail", "longName": "995915 - Disclosure - Borrowings and Repurchase Agreements - Schedule of Borrowings (Detail)", "shortName": "Borrowings and Repurchase Agreements - Schedule of Borrowings (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "46", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:SecuritiesSoldUnderAgreementsToRepurchase", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShortTermDebtTextBlock", "div", "us-gaap:ShortTermDebtTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:SecuritiesSoldUnderAgreementsToRepurchase", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShortTermDebtTextBlock", "div", "us-gaap:ShortTermDebtTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R47": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail", "longName": "995925 - Disclosure - Borrowings and Repurchase Agreements - Additional Information (Detail)", "shortName": "Borrowings and Repurchase Agreements - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "47", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "us-gaap:ShortTermDebtTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "us-gaap:ShortTermDebtTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R48": { "role": "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail", "longName": "995935 - Disclosure - Income Taxes - Additional Information (Detail)", "shortName": "Income Taxes - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "48", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R49": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "longName": "995945 - Disclosure - Stock Based Compensation - Additional Information (Detail)", "shortName": "Stock Based Compensation - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "49", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:PercentageOfOptionVestingRate", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:PercentageOfOptionVestingRate", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R50": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "longName": "995955 - Disclosure - Stock Based Compensation - Schedule of Changes in Stock Units (Detail)", "shortName": "Stock Based Compensation - Schedule of Changes in Stock Units (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "50", "firstAnchor": { "contextRef": "C_52341c40-5530-48c9-99ef-81fd135586c2", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_426e995d-0cb4-48d1-ae65-0d8337dc25d0", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "ix:continuation", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R51": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails", "longName": "995965 - Disclosure - Stock Based Compensation - Schedule of Changes in Stock Units (Parenthetical) (Details)", "shortName": "Stock Based Compensation - Schedule of Changes in Stock Units (Parenthetical) (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "parenthetical", "menuCat": "Details", "order": "51", "firstAnchor": { "contextRef": "C_dd66b7a2-5996-4c5d-8b16-3af82646b01d", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "link:footnote", "p", "us-gaap:ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_dd66b7a2-5996-4c5d-8b16-3af82646b01d", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "link:footnote", "p", "us-gaap:ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R52": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail", "longName": "995985 - Disclosure - Stock Based Compensation - Summary of Vested and Unvested Restricted Stock Outstanding (Detail)", "shortName": "Stock Based Compensation - Summary of Vested and Unvested Restricted Stock Outstanding (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "52", "firstAnchor": { "contextRef": "C_52341c40-5530-48c9-99ef-81fd135586c2", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": null }, "R53": { "role": "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail", "longName": "995995 - Disclosure - Stock Based Compensation - Schedule of Analysis of Stock Option Activity (Detail)", "shortName": "Stock Based Compensation - Schedule of Analysis of Stock Option Activity (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "53", "firstAnchor": { "contextRef": "C_52341c40-5530-48c9-99ef-81fd135586c2", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_52341c40-5530-48c9-99ef-81fd135586c2", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R54": { "role": "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail", "longName": "996005 - Disclosure - Fair Value Disclosures - Additional Information (Detail)", "shortName": "Fair Value Disclosures - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "54", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "ffin:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2", "span", "p", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "ffin:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2", "span", "p", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R55": { "role": "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "longName": "996015 - Disclosure - Fair Value Disclosures - Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis (Detail)", "shortName": "Fair Value Disclosures - Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "55", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_2e78c120-36c7-49c5-80d4-e2bd451c0fc5", "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } }, "R56": { "role": "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresSummaryOfLoansHeldForSaleAtFairValueDetail", "longName": "996025 - Disclosure - Fair Value Disclosures - Summary of Loans Held-for-Sale at Fair Value (Detail)", "shortName": "Fair Value Disclosures - Summary of Loans Held-for-Sale at Fair Value (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "56", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:UnpaidPrincipalBalanceOnLoansHeldForSale", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:FairValueMeasurementsLoansHeldForSaleTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "ffin:UnpaidPrincipalBalanceOnLoansHeldForSale", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:FairValueMeasurementsLoansHeldForSaleTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R57": { "role": "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail", "longName": "996035 - Disclosure - Fair Value Disclosures - Schedule of Gain Loss on Sale of Mortgage Loans (Detail)", "shortName": "Fair Value Disclosures - Schedule of Gain Loss on Sale of Mortgage Loans (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "57", "firstAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:RealizedGainOnSaleAndFeesOnMortgageLoans", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfGainLossOnSaleOfMortgageLoansTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_e54cc12c-aba9-4b41-92d8-a7b616b96f3e", "name": "ffin:RealizedGainOnSaleAndFeesOnMortgageLoans", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ffin:ScheduleOfGainLossOnSaleOfMortgageLoansTableTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true, "unique": true } }, "R58": { "role": "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "longName": "996045 - Disclosure - Fair Value Disclosures - Schedule of Estimated Fair Values and Carrying Values of All Financial Instruments (Detail)", "shortName": "Fair Value Disclosures - Schedule of Estimated Fair Values and Carrying Values of All Financial Instruments (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "58", "firstAnchor": { "contextRef": "C_91bbfe5b-688d-4588-93fc-db74b38f324c", "name": "us-gaap:CashAndDueFromBanks", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_1d6752b8-c417-4462-9bbe-7b9069ed8ea2", "name": "us-gaap:CashAndDueFromBanks", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "div", "ix:continuation", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "ffin-20260331.htm", "unique": true } } }, "tag": { "us-gaap_AccountingPoliciesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AccountingPoliciesAbstract", "lang": { "en-us": { "role": { "label": "Accounting Policies [Abstract]" } } }, "auth_ref": [] }, "us-gaap_AccountsNotesAndLoansReceivableLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AccountsNotesAndLoansReceivableLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Accounts, Notes, Loans and Financing Receivable [Line Items]", "terseLabel": "Accounts, Notes, Loans and Financing Receivable [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r277", "r1165" ] }, "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 13.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Accretion (Amortization) of Discounts and Premiums, Investments", "terseLabel": "Securities premium amortization, net", "negatedLabel": "Securities premium amortization, net", "documentation": "The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method." } } }, "auth_ref": [ "r67" ] }, "ffin_AccruedInterestPayable": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AccruedInterestPayable", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "documentation": "Accrued interest payable.", "label": "Accrued Interest Payable", "terseLabel": "Accrued interest payable" } } }, "auth_ref": [] }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "totalLabel": "AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax, Total", "label": "AOCI, Debt Securities, Available-for-Sale, Adjustment, after Tax", "terseLabel": "Unrealized net losses in available-for-sale securities, included in accumulated other comprehensive income", "documentation": "Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r1128" ] }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 5.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "verboseLabel": "ACCUMULATED OTHER COMPREHENSIVE EARNINGS (LOSS), net", "totalLabel": "Accumulated Other Comprehensive Income (Loss), Net of Tax, Total", "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax", "documentation": "Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source." } } }, "auth_ref": [ "r17", "r18", "r58", "r179", "r754", "r775", "r776", "r1259" ] }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AccumulatedOtherComprehensiveIncomeMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Accumulated Other Comprehensive Earnings (Loss) [Member]", "label": "AOCI Attributable to Parent [Member]", "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners." } } }, "auth_ref": [ "r1", "r9", "r18", "r587", "r590", "r648", "r771", "r772", "r1129", "r1130", "r1131", "r1144", "r1145", "r1146", "r1147" ] }, "ecd_Additional402vDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "Additional402vDisclosureTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Additional 402(v) Disclosure [Text Block]", "terseLabel": "Additional 402(v) Disclosure" } } }, "auth_ref": [ "r1062" ] }, "ffin_AdditionalContributionOfProperty": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AdditionalContributionOfProperty", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Additional Contribution Of Property", "documentation": "Additional Contribution Of Property", "terseLabel": "Additional Contribution Of Property" } } }, "auth_ref": [] }, "ffin_AdditionalFundsAdvancedInConnectionWithImpairedConstructionLoans": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AdditionalFundsAdvancedInConnectionWithImpairedConstructionLoans", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Additional Funds Advanced In Connection With Impaired Construction Loans", "label": "Additional Funds Advanced In Connection With Impaired Construction Loans", "terseLabel": "Additional funds advanced in connection with impaired loans" } } }, "auth_ref": [] }, "us-gaap_AdditionalPaidInCapitalCommonStock": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AdditionalPaidInCapitalCommonStock", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "CAPITAL SURPLUS", "label": "Additional Paid in Capital, Common Stock", "periodEndLabel": "Additional Paid in Capital, Common Stock, Ending Balance", "periodStartLabel": "Additional Paid in Capital, Common Stock, Beginning Balance", "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital." } } }, "auth_ref": [ "r52" ] }, "us-gaap_AdditionalPaidInCapitalMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AdditionalPaidInCapitalMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Additional Paid-in Capital [Member]", "terseLabel": "Capital Surplus [Member]", "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders." } } }, "auth_ref": [ "r793", "r1144", "r1145", "r1146", "r1147", "r1260", "r1329" ] }, "ecd_AdjToCompAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AdjToCompAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Adjustment to Compensation Amount", "terseLabel": "Adjustment to Compensation, Amount" } } }, "auth_ref": [ "r1075" ] }, "ecd_AdjToCompAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AdjToCompAxis", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Adjustment to Compensation [Axis]", "terseLabel": "Adjustment to Compensation:" } } }, "auth_ref": [ "r1075" ] }, "ecd_AdjToNonPeoNeoCompFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AdjToNonPeoNeoCompFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Adjustment to Non-PEO NEO Compensation Footnote [Text Block]", "terseLabel": "Adjustment to Non-PEO NEO Compensation Footnote" } } }, "auth_ref": [ "r1075" ] }, "ecd_AdjToPeoCompFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AdjToPeoCompFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Adjustment To PEO Compensation, Footnote [Text Block]", "terseLabel": "Adjustment To PEO Compensation, Footnote" } } }, "auth_ref": [ "r1075" ] }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition", "terseLabel": "Stock- based compensation expense (unaudited)", "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement." } } }, "auth_ref": [ "r1209", "r1216" ] }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "verboseLabel": "Adjustments", "label": "Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity", "totalLabel": "Total adjustments", "documentation": "Amount of expense (income); loss (gain); increase (decrease) in liability and (increase) decrease in asset used in operating activity; and cash inflow (outflow) from operating activity, classified as other; in reconciling net income to reflect cash provided by (used in) operating activity when indirect cash flow method is applied." } } }, "auth_ref": [ "r67" ] }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]", "terseLabel": "Adjustments to reconcile net earnings to net cash provided by operating activities:" } } }, "auth_ref": [] }, "ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AggtChngPnsnValInSummryCompstnTblForAplblYrMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member]", "terseLabel": "Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table" } } }, "auth_ref": [ "r1108" ] }, "ecd_AggtErrCompAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AggtErrCompAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Aggregate Erroneous Compensation Amount", "terseLabel": "Aggregate Erroneous Compensation Amount" } } }, "auth_ref": [ "r1034", "r1044", "r1054", "r1086" ] }, "ecd_AggtErrCompNotYetDeterminedTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AggtErrCompNotYetDeterminedTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Aggregate Erroneous Compensation Not Yet Determined [Text Block]", "terseLabel": "Aggregate Erroneous Compensation Not Yet Determined" } } }, "auth_ref": [ "r1037", "r1047", "r1057", "r1089" ] }, "ecd_AggtPnsnAdjsSvcCstMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AggtPnsnAdjsSvcCstMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Aggregate Pension Adjustments Service Cost [Member]", "terseLabel": "Aggregate Pension Adjustments Service Cost" } } }, "auth_ref": [ "r1109" ] }, "ffin_AgriculturalPortfolioSegmentMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AgriculturalPortfolioSegmentMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Agricultural portfolio segment.", "label": "Agricultural Portfolio Segment [Member]", "terseLabel": "Agriculture [Member]" } } }, "auth_ref": [] }, "ecd_AllAdjToCompMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AllAdjToCompMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "All Adjustments to Compensation [Member]", "terseLabel": "All Adjustments to Compensation" } } }, "auth_ref": [ "r1075" ] }, "ecd_AllExecutiveCategoriesMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AllExecutiveCategoriesMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "All Executive Categories [Member]", "terseLabel": "All Executive Categories" } } }, "auth_ref": [ "r1082" ] }, "ecd_AllIndividualsMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AllIndividualsMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure", "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure", "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements", "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "All Individuals [Member]", "terseLabel": "All Individuals" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1082", "r1090", "r1094", "r1102" ] }, "ecd_AllTradingArrangementsMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AllTradingArrangementsMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "All Trading Arrangements [Member]", "terseLabel": "All Trading Arrangements" } } }, "auth_ref": [ "r1100" ] }, "us-gaap_AllocatedShareBasedCompensationExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AllocatedShareBasedCompensationExpense", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Expense", "terseLabel": "Stock compensation expense", "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized." } } }, "auth_ref": [ "r438", "r444", "r445" ] }, "ffin_AllowanceForCreditLossesOnLoansCollectivelyEvaluated": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AllowanceForCreditLossesOnLoansCollectivelyEvaluated", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail" ], "lang": { "en-us": { "role": { "label": "Allowance for Credit Losses on Loans Collectively Evaluated", "documentation": "Allowance for Credit Losses on Loans Collectively Evaluated", "terseLabel": "Total ACL on loans" } } }, "auth_ref": [] }, "ffin_AllowanceForCreditLossesOnLoansIndividuallyEvaluated": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AllowanceForCreditLossesOnLoansIndividuallyEvaluated", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Allowance for loan loss Individually evaluated", "label": "Allowance for Credit Losses on Loans Individually Evaluated", "documentation": "Allowance for Credit Losses on Loans Individually Evaluated" } } }, "auth_ref": [] }, "ffin_AllowanceForLoanAndLeaseLossesChargeoffs": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AllowanceForLoanAndLeaseLossesChargeoffs", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Charge-offs", "label": "Allowance For Loan And Lease Losses ChargeOffs", "documentation": "Allowance For Loan And Lease Losses, ChargeOffs" } } }, "auth_ref": [] }, "ffin_AllowanceForLoanAndLeaseLossesRecoveries": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AllowanceForLoanAndLeaseLossesRecoveries", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Recoveries", "label": "Allowance For Loan And Lease Losses Recoveries", "documentation": "Allowance For Loan And Lease Losses, Recoveries" } } }, "auth_ref": [] }, "us-gaap_AlternativeInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AlternativeInvestment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Loan investment", "label": "Alternative Investment", "documentation": "Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund." } } }, "auth_ref": [ "r600", "r617", "r628", "r629", "r631", "r984", "r987", "r988", "r1262", "r1264", "r1265", "r1266" ] }, "us-gaap_AlternativeInvestmentMeasurementInput": { "xbrltype": "decimalItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AlternativeInvestmentMeasurementInput", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Alternative Investment, Measurement Input", "terseLabel": "Debt discounts, percentage", "documentation": "Value of input used to measure alternative investment." } } }, "auth_ref": [ "r987", "r1264", "r1265", "r1266" ] }, "dei_AmendmentFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "AmendmentFlag", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Amendment Flag", "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission." } } }, "auth_ref": [] }, "us-gaap_AmortizationOfDeferredPropertyTaxes": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AmortizationOfDeferredPropertyTaxes", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Amortization of Deferred Property Taxes", "terseLabel": "Amortization of Low Income Housing Tax Credit Investments", "documentation": "The amount of amortization charged against earnings during the period for deferred property taxes." } } }, "auth_ref": [ "r891", "r1135" ] }, "us-gaap_AmortizationOfIntangibleAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AmortizationOfIntangibleAssets", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 10.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Amortization of Intangible Assets, Total", "label": "Amortization of Intangible Assets", "terseLabel": "Amortization of intangible assets", "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets." } } }, "auth_ref": [ "r5", "r200", "r356", "r362", "r894", "r899", "r900", "r902", "r904" ] }, "ffin_AmortizedCostBasisOfModifiedReceivablesInterestRateReduction": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AmortizedCostBasisOfModifiedReceivablesInterestRateReduction", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "documentation": "Amortized Cost Basis of Modified Receivables Interest Rate Reduction", "label": "Amortized Cost Basis of Modified Receivables Interest Rate Reduction", "terseLabel": "Interest Rate Reduction" } } }, "auth_ref": [] }, "ffin_AmortizedCostBasisOfModifiedReceivablesTermExtension": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AmortizedCostBasisOfModifiedReceivablesTermExtension", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "documentation": "Amortized Cost Basis of Modified Receivables Term Extension", "label": "Amortized Cost Basis of Modified Receivables Term Extension", "terseLabel": "Term Extension" } } }, "auth_ref": [] }, "us-gaap_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail": { "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "label": "Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units", "terseLabel": "Effect of stock options and stock grants, Net Earnings", "documentation": "Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of stock options or restrictive stock units (RSUs)." } } }, "auth_ref": [ "r1148" ] }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount", "terseLabel": "First financial antidilutive securities excluded from eps computation", "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented." } } }, "auth_ref": [ "r249" ] }, "us-gaap_Assets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "Assets", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Total assets", "label": "Assets", "documentation": "Amount of asset recognized for present right to economic benefit." } } }, "auth_ref": [ "r75", "r100", "r177", "r211", "r213", "r214", "r252", "r260", "r270", "r271", "r319", "r371", "r372", "r373", "r374", "r375", "r376", "r377", "r378", "r379", "r541", "r545", "r633", "r734", "r735", "r749", "r824", "r916", "r917", "r947", "r995", "r1009", "r1010", "r1025", "r1205", "r1206", "r1279" ] }, "us-gaap_AssetsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AssetsAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Assets [Abstract]", "terseLabel": "ASSETS" } } }, "auth_ref": [] }, "ffin_AssetsAcquiredThroughForeclosure": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AssetsAcquiredThroughForeclosure", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Assets Acquired Through Foreclosure", "documentation": "Assets Acquired Through Foreclosure", "terseLabel": "Loans transferred to other real estate owned, net" } } }, "auth_ref": [] }, "ffin_AutoMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AutoMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Auto.", "label": "Auto [Member]", "terseLabel": "Auto [Member]" } } }, "auth_ref": [] }, "ffin_AvailableForSaleDebtSecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AvailableForSaleDebtSecurities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail3": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Available For Sale Debt Securities", "label": "Available For Sale Debt Securities", "terseLabel": "Total", "totalLabel": "Total" } } }, "auth_ref": [] }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail": { "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax", "terseLabel": "Securities available-for-sale, Gross Unrealized Holding Gains", "documentation": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r291" ] }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail": { "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax", "negatedLabel": "Securities available-for-sale, Gross Unrealized Holding Losses", "documentation": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r292" ] }, "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnauditedParenthetical" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Amortized Cost", "totalLabel": "Available-for-Sale, Amortized Cost Basis, Total", "verboseLabel": "Total", "terseLabel": "Securities, available-for-sale, amortized cost", "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r288", "r340", "r747" ] }, "us-gaap_AvailableForSaleDebtSecuritiesGrossUnrealizedGain": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleDebtSecuritiesGrossUnrealizedGain", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Gross realized gains from security sales", "label": "Debt Securities, Available-for-Sale, Unrealized Gain", "documentation": "Amount of unrealized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r1169" ] }, "us-gaap_AvailableForSaleDebtSecuritiesGrossUnrealizedLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleDebtSecuritiesGrossUnrealizedLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Gross realized losses from security sales or calls", "label": "Debt Securities, Available-for-Sale, Unrealized Loss", "documentation": "Amount of unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r1170" ] }, "us-gaap_AvailableForSaleSecuritiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale [Abstract]", "terseLabel": "Activity in available-for-sale securities:", "verboseLabel": "Available-for-sale investment securities:" } } }, "auth_ref": [] }, "ffin_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYears": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYears", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail3": { "parentTag": "ffin_AvailableForSaleDebtSecurities", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Available For Sale Securities Debt Maturities After Five Through Ten Years", "label": "Available For Sale Securities Debt Maturities After Five Through Ten Years", "terseLabel": "Due after five years through ten years" } } }, "auth_ref": [] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10", "terseLabel": "Due after five years through ten years", "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r1174" ] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail2": { "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10", "terseLabel": "Available-for-Sale, Estimated Fair Value, Due after five years through ten years", "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r297", "r740" ] }, "ffin_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYears": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYears", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail3": { "parentTag": "ffin_AvailableForSaleDebtSecurities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Available for sale securities debt maturities after one through five years", "label": "Available For Sale Securities Debt Maturities After One Through Five Years", "terseLabel": "Due after one year through five years" } } }, "auth_ref": [] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five", "terseLabel": "Due after one year through five years", "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r1173" ] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail2": { "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five", "terseLabel": "Available-for-Sale, Estimated Fair Value, Due after one year through five years", "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r296", "r739" ] }, "ffin_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYears": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYears", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail3": { "parentTag": "ffin_AvailableForSaleDebtSecurities", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Available for sale securities debt maturities after ten years", "label": "Available For Sale Securities Debt Maturities After Ten Years", "terseLabel": "Due after ten years" } } }, "auth_ref": [] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10", "terseLabel": "Due after ten years", "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r1175" ] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail2": { "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10", "terseLabel": "Available-for-Sale, Estimated Fair Value, Due after ten years", "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r298", "r741" ] }, "ffin_AvailableForSaleSecuritiesDebtMaturitiesWithInOneYear": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithInOneYear", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail3": { "parentTag": "ffin_AvailableForSaleDebtSecurities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Available For Sale Securities Debt Maturities With In One Year", "label": "Available For Sale Securities Debt Maturities With In One Year", "terseLabel": "Due within one year" } } }, "auth_ref": [] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One", "terseLabel": "Due within one year", "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r1172" ] }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail2": { "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One", "terseLabel": "Available-for-Sale, Estimated Fair Value, Due within one year", "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)." } } }, "auth_ref": [ "r295", "r738" ] }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AvailableForSaleSecuritiesDebtSecurities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 1.0 }, "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail": { "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0, "order": 2.0 }, "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail2": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSecuritiesCarryingValueAndEstimatedFairValueOfAvailableforsaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Available-for-Sale, Estimated Fair Value, Total", "verboseLabel": "Estimated Fair Value", "label": "Debt Securities, Available-for-Sale", "netLabel": "Available-for-sale securities", "terseLabel": "SECURITIES AVAILABLE-FOR-SALE, at fair value (amortized cost ofthese securities was $6,036,308 and $5,856,138 as of March 31, 2026 and December 31, 2025, respectively)", "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r289", "r340", "r601", "r624", "r626", "r628", "r629", "r725", "r892", "r984", "r987", "r994", "r1166", "r1264", "r1265", "r1266" ] }, "ffin_AverageRecordedInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "AverageRecordedInvestment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Average Recorded Investment", "label": "Average Recorded Investment", "terseLabel": "Average Recorded Investment" } } }, "auth_ref": [] }, "ecd_AwardExrcPrice": { "xbrltype": "perShareItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardExrcPrice", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Exercise Price", "terseLabel": "Exercise Price" } } }, "auth_ref": [ "r1097" ] }, "ecd_AwardGrantDateFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardGrantDateFairValue", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Grant Date Fair Value", "terseLabel": "Fair Value as of Grant Date" } } }, "auth_ref": [ "r1098" ] }, "ecd_AwardTmgDiscLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardTmgDiscLineItems", "lang": { "en-us": { "role": { "label": "Award Timing Disclosures [Line Items]", "terseLabel": "Award Timing Disclosures" } } }, "auth_ref": [ "r1093" ] }, "ecd_AwardTmgHowMnpiCnsdrdTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardTmgHowMnpiCnsdrdTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Timing, How MNPI Considered [Text Block]", "terseLabel": "Award Timing, How MNPI Considered" } } }, "auth_ref": [ "r1093" ] }, "ecd_AwardTmgMethodTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardTmgMethodTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Timing Method [Text Block]", "terseLabel": "Award Timing Method" } } }, "auth_ref": [ "r1093" ] }, "ecd_AwardTmgMnpiCnsdrdFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardTmgMnpiCnsdrdFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Timing MNPI Considered [Flag]", "terseLabel": "Award Timing MNPI Considered" } } }, "auth_ref": [ "r1093" ] }, "ecd_AwardTmgMnpiDiscTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardTmgMnpiDiscTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Timing MNPI Disclosure [Text Block]", "terseLabel": "Award Timing MNPI Disclosure" } } }, "auth_ref": [ "r1093" ] }, "ecd_AwardTmgPredtrmndFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardTmgPredtrmndFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Timing Predetermined [Flag]", "terseLabel": "Award Timing Predetermined" } } }, "auth_ref": [ "r1093" ] }, "us-gaap_AwardTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AwardTypeAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails", "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Type [Axis]", "terseLabel": "Award Type", "documentation": "Information by type of award under share-based payment arrangement." } } }, "auth_ref": [ "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r433", "r434", "r435", "r436", "r437" ] }, "ecd_AwardUndrlygSecuritiesAmt": { "xbrltype": "decimalItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardUndrlygSecuritiesAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Award Underlying Securities Amount", "terseLabel": "Underlying Securities" } } }, "auth_ref": [ "r1096" ] }, "ecd_AwardsCloseToMnpiDiscIndName": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardsCloseToMnpiDiscIndName", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Awards Close in Time to MNPI Disclosures, Individual Name", "terseLabel": "Name" } } }, "auth_ref": [ "r1095" ] }, "ecd_AwardsCloseToMnpiDiscTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardsCloseToMnpiDiscTable", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Awards Close in Time to MNPI Disclosures [Table]", "terseLabel": "Awards Close in Time to MNPI Disclosures" } } }, "auth_ref": [ "r1094" ] }, "ecd_AwardsCloseToMnpiDiscTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "AwardsCloseToMnpiDiscTableTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Awards Close in Time to MNPI Disclosures [Table Text Block]", "terseLabel": "Awards Close in Time to MNPI Disclosures, Table" } } }, "auth_ref": [ "r1094" ] }, "us-gaap_BalanceSheetLocationAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BalanceSheetLocationAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Statement of Financial Position Location, Balance [Axis]", "documentation": "Information by location in statement of financial position where disaggregated cumulative balance is reported." } } }, "auth_ref": [ "r364", "r558", "r559", "r560", "r561", "r562", "r563", "r564", "r565", "r566", "r567", "r568", "r569", "r632", "r979", "r980", "r1113", "r1296" ] }, "us-gaap_BalanceSheetLocationDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BalanceSheetLocationDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Statement of Financial Position Location, Balance [Domain]", "documentation": "Location in statement of financial position where disaggregated cumulative balance is reported." } } }, "auth_ref": [ "r364", "r558", "r559", "r560", "r561", "r562", "r563", "r564", "r565", "r566", "r567", "r568", "r569", "r632", "r979", "r980", "r1113", "r1296" ] }, "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BasisOfAccountingPolicyPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Basis of Accounting, Policy [Policy Text Block]", "terseLabel": "Basis of Presentation", "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS)." } } }, "auth_ref": [ "r1137" ] }, "us-gaap_BusinessAcquisitionAcquireeDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessAcquisitionAcquireeDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateParentheticalDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination [Domain]", "terseLabel": "Business Acquisition, Acquiree [Domain]", "documentation": "Business combination or series of individually immaterial business combinations." } } }, "auth_ref": [ "r354", "r357", "r358", "r359", "r360", "r361", "r476", "r477", "r478", "r479", "r480", "r481", "r482", "r483", "r484", "r485", "r486", "r487", "r488", "r489", "r490", "r491", "r492", "r493", "r494", "r499", "r500", "r501", "r502", "r503", "r504", "r505", "r506", "r507", "r508", "r509", "r510", "r512", "r513", "r514", "r515", "r516", "r519", "r520", "r521", "r522", "r523", "r524", "r525", "r526", "r527", "r528", "r529", "r530", "r531", "r532", "r534", "r535", "r536", "r779", "r956", "r957", "r1247", "r1249", "r1251" ] }, "us-gaap_BusinessAcquisitionAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessAcquisitionAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateParentheticalDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination [Axis]", "terseLabel": "Business Acquisition [Axis]", "documentation": "Information by business combination or series of individually immaterial business combinations." } } }, "auth_ref": [ "r354", "r357", "r358", "r359", "r360", "r361", "r476", "r477", "r478", "r479", "r480", "r481", "r482", "r483", "r484", "r485", "r486", "r487", "r488", "r489", "r490", "r491", "r492", "r493", "r494", "r499", "r500", "r501", "r502", "r503", "r504", "r505", "r506", "r507", "r508", "r509", "r510", "r512", "r513", "r514", "r515", "r516", "r519", "r520", "r521", "r522", "r523", "r524", "r525", "r526", "r527", "r528", "r529", "r530", "r531", "r532", "r534", "r535", "r536", "r779", "r956", "r957", "r1247", "r1249", "r1251" ] }, "us-gaap_BusinessAcquisitionDateOfAcquisitionAgreement1": { "xbrltype": "dateItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessAcquisitionDateOfAcquisitionAgreement1", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Date of Acquisition Agreement", "terseLabel": "Business acquisition, agreement date", "documentation": "Date when acquisition agreement is executed in business combination, in YYYY-MM-DD format." } } }, "auth_ref": [ "r1246", "r1248" ] }, "us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateParentheticalDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares", "terseLabel": "Common stock issued", "verboseLabel": "Payment for all outstanding shares of acquired entity by shares", "documentation": "Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination." } } }, "auth_ref": [ "r962", "r967", "r968", "r973", "r974" ] }, "us-gaap_BusinessAcquisitionLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessAcquisitionLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateParentheticalDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination [Line Items]", "terseLabel": "Business Acquisition [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r354", "r476", "r477", "r478", "r479", "r485", "r486", "r487", "r488", "r494", "r499", "r500", "r501", "r502", "r503", "r504", "r505", "r506", "r507", "r508", "r509", "r510", "r512", "r513", "r514", "r515", "r516", "r519", "r520", "r521", "r522", "r523", "r524", "r530", "r531", "r532", "r536", "r962", "r972", "r1247", "r1249", "r1251" ] }, "ffin_BusinessAcquisitionSpecialDividendsPayableByAcquiree": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "BusinessAcquisitionSpecialDividendsPayableByAcquiree", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Business acquisition special dividends payable by acquiree.", "label": "Business Acquisition Special Dividends Payable By Acquiree", "terseLabel": "Business acquisition, special dividend" } } }, "auth_ref": [] }, "ffin_BusinessAssetsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "BusinessAssetsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Business assets [Member]", "label": "Business assets [Member]", "documentation": "Business assets [Member]" } } }, "auth_ref": [] }, "us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Consideration Transferred, Equity Interest", "terseLabel": "Common stock issued (6,275,574 shares)", "documentation": "Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination." } } }, "auth_ref": [ "r962", "r967", "r968", "r973", "r974" ] }, "us-gaap_BusinessCombinationDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationDisclosureTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/Acquisition" ], "lang": { "en-us": { "role": { "label": "Business Combination [Text Block]", "verboseLabel": "Acquisition", "documentation": "The entire disclosure for business combination." } } }, "auth_ref": [ "r475", "r476", "r480", "r489", "r493", "r494", "r495", "r496", "r497", "r498", "r500", "r501", "r507", "r510", "r511", "r517", "r518", "r519", "r527", "r531", "r532", "r533", "r535", "r537", "r962", "r963", "r964", "r965", "r969", "r970", "r971" ] }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Recognized Asset Acquired, Asset", "totalLabel": "Total identifiable assets acquired", "documentation": "Amount of asset acquired in business combination and recognized at acquisition date." } } }, "auth_ref": [ "r505", "r510" ] }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent", "terseLabel": "Cash and cash equivalents", "documentation": "Amount of cash and cash equivalent acquired in business combination and recognized at acquisition date." } } }, "auth_ref": [ "r1250", "r1252" ] }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Recognized Asset Acquired, Investment in Debt and Equity Securities, Current", "terseLabel": "Securities available-for-sale", "documentation": "Amount of investment in debt and equity securities acquired in business combination and recognized at acquisition date, classified as current." } } }, "auth_ref": [ "r1250", "r1252" ] }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Recognized Liability Assumed, Other Liability, Current", "terseLabel": "Other liabilities", "documentation": "Amount of liability assumed in business combination and recognized at acquisition date, classified as other and current." } } }, "auth_ref": [ "r1250", "r1252" ] }, "ffin_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDepositLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDepositLiabilities", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "documentation": "Business combination recognized identifiable assets acquired and liabilities assumed deposit liabilities.", "label": "Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities", "terseLabel": "Deposits" } } }, "auth_ref": [] }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Identifiable intangible assets", "totalLabel": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total", "label": "Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill", "documentation": "Amount of identifiable intangible asset acquired in business combination and recognized at acquisition date. Excludes goodwill and financial asset." } } }, "auth_ref": [ "r962", "r967", "r970", "r1250", "r1252" ] }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet", "weight": -1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Recognized Liability Assumed, Liability", "totalLabel": "Total liabilities assumed", "documentation": "Amount of liability assumed in business combination and recognized at acquisition date." } } }, "auth_ref": [ "r505", "r510" ] }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)", "totalLabel": "Fair value of net identifiable assets acquired", "documentation": "Amount of asset acquired in excess of (less than) liability assumed in business combination and recognized at acquisition date. Excludes goodwill." } } }, "auth_ref": [ "r962", "r967", "r1250", "r1252" ] }, "ffin_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "documentation": "Business combination recognized identifiable assets acquired and liabilities assumed other assets.", "label": "Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Assets", "terseLabel": "Other assets" } } }, "auth_ref": [] }, "us-gaap_BusinessCombinationsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "BusinessCombinationsAbstract", "lang": { "en-us": { "role": { "label": "Business Combination [Abstract]", "terseLabel": "Acquisition and Proposed Acquisition [Abstract]" } } }, "auth_ref": [] }, "ffin_CAndIMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CAndIMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "C And I.", "label": "C And I [Member]", "terseLabel": "C&I [Member]", "verboseLabel": "Commercial & Industrial [Member]" } } }, "auth_ref": [] }, "ffin_CapitalCommitmentRelatingToLowIncomeHousingProjectInvestmentsNoncash": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CapitalCommitmentRelatingToLowIncomeHousingProjectInvestmentsNoncash", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Capital commitment relating to Low Income Housing Project investments, noncash", "documentation": "Capital commitment relating to Low Income Housing Project investments, noncash", "terseLabel": "Increase in capital commitments relating to low-income housing project investments" } } }, "auth_ref": [] }, "us-gaap_CapitalizedComputerSoftwareAmortization1": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CapitalizedComputerSoftwareAmortization1", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 5.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Capitalized Computer Software, Amortization", "verboseLabel": "Software amortization and expense", "documentation": "Amount of expense for amortization of capitalized computer software costs." } } }, "auth_ref": [ "r889", "r890" ] }, "us-gaap_CarryingReportedAmountFairValueDisclosureMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CarryingReportedAmountFairValueDisclosureMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Reported Value Measurement [Member]", "terseLabel": "Carrying Value [Member]", "documentation": "Measured as reported on the statement of financial position (balance sheet)." } } }, "auth_ref": [ "r628", "r629", "r631", "r892", "r1272" ] }, "us-gaap_CashAndCashEquivalentsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CashAndCashEquivalentsAbstract", "lang": { "en-us": { "role": { "label": "Cash and Cash Equivalents [Abstract]" } } }, "auth_ref": [] }, "us-gaap_CashAndDueFromBanks": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CashAndDueFromBanks", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_CashCashEquivalentsAndFederalFundsSold", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash and Due from Banks", "verboseLabel": "Cash and due from banks", "totalLabel": "Cash and Due from Banks, Total", "terseLabel": "CASH AND DUE FROM BANKS", "documentation": "For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks." } } }, "auth_ref": [ "r73" ] }, "us-gaap_CashCashEquivalentsAndFederalFundsSold": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CashCashEquivalentsAndFederalFundsSold", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Total cash and cash equivalents", "label": "Cash, Cash Equivalents, and Federal Funds Sold", "periodEndLabel": "CASH AND CASH EQUIVALENTS, end of period", "periodStartLabel": "CASH AND CASH EQUIVALENTS, beginning of period", "documentation": "The sum of cash and cash equivalents plus Federal Funds Sold. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days." } } }, "auth_ref": [ "r73", "r83", "r85" ] }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total", "label": "Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation", "periodStartLabel": "CASH AND CASH EQUIVALENTS, beginning of period", "periodEndLabel": "CASH AND CASH EQUIVALENTS, end of period", "documentation": "Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate." } } }, "auth_ref": [ "r22", "r64", "r208" ] }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation", "totalLabel": "NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS", "documentation": "Amount, excluding effect from change in exchange rate, of increase (decrease) in cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; including, but not limited to, discontinued operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate." } } }, "auth_ref": [ "r0", "r64" ] }, "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of noncash investing and financing activities:", "label": "Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]" } } }, "auth_ref": [] }, "ffin_ChangeInFairValueOnLoansHeldForSaleAndIRLCS": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ChangeInFairValueOnLoansHeldForSaleAndIRLCS", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail": { "parentTag": "us-gaap_GainLossOnSaleOfMortgageLoans", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail" ], "lang": { "en-us": { "role": { "documentation": "Change in fair value on loans held for sale and Irlcs.", "label": "Change In Fair Value On Loans Held For Sale And I R L C S", "terseLabel": "Change in fair value on loans held-for-sale and IRLCs" } } }, "auth_ref": [] }, "ffin_ChangeInForwardMortgageBackedSecuritiesTrades": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ChangeInForwardMortgageBackedSecuritiesTrades", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail": { "parentTag": "us-gaap_GainLossOnSaleOfMortgageLoans", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail" ], "lang": { "en-us": { "role": { "documentation": "Change in forward mortgage-backed securities trades.", "label": "Change In Forward Mortgage Backed Securities Trades", "terseLabel": "Change in forward mortgage-backed securities trades" } } }, "auth_ref": [] }, "ecd_ChangedPeerGroupFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ChangedPeerGroupFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Changed Peer Group, Footnote [Text Block]", "terseLabel": "Changed Peer Group, Footnote" } } }, "auth_ref": [ "r1073" ] }, "ffin_ChargeOffMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ChargeOffMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "documentation": "Charge off [Member]", "label": "Charge off [Member]", "terseLabel": "Charge-Off [Member]" } } }, "auth_ref": [] }, "ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]", "terseLabel": "Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year" } } }, "auth_ref": [ "r1070" ] }, "ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]", "terseLabel": "Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested" } } }, "auth_ref": [ "r1068" ] }, "dei_CityAreaCode": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "CityAreaCode", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "City Area Code", "documentation": "Area code of city" } } }, "auth_ref": [] }, "us-gaap_ClassOfStockDisclosuresAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ClassOfStockDisclosuresAbstract", "lang": { "en-us": { "role": { "label": "Class of Stock Disclosures [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ClassOfTreasuryStockTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ClassOfTreasuryStockTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Class of Treasury Stock [Table]", "terseLabel": "Class of Treasury Stock [Table]", "documentation": "Disclosure of information about treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock." } } }, "auth_ref": [ "r30", "r31", "r32", "r33" ] }, "ecd_CoSelectedMeasureAmt": { "xbrltype": "decimalItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "CoSelectedMeasureAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Company Selected Measure Amount", "terseLabel": "Company Selected Measure Amount" } } }, "auth_ref": [ "r1074" ] }, "ecd_CoSelectedMeasureName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "CoSelectedMeasureName", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Company Selected Measure Name", "terseLabel": "Company Selected Measure Name" } } }, "auth_ref": [ "r1074" ] }, "us-gaap_CollateralAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CollateralAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Collateral Held [Axis]", "terseLabel": "Collateral Held [Axis]", "documentation": "Information by category of collateral or no collateral, from lender's perspective." } } }, "auth_ref": [ "r211", "r212", "r931", "r932", "r933", "r934", "r1005", "r1006" ] }, "ffin_CollateralDependentCommercialLoans": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CollateralDependentCommercialLoans", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Collateral Dependent Commercial Loans", "documentation": "Collateral Dependent Commercial Loans", "terseLabel": "Collateral Dependent Commercial Loans" } } }, "auth_ref": [] }, "us-gaap_CollateralDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CollateralDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Collateral Held [Domain]", "terseLabel": "Collateral Held [Domain]", "documentation": "Category of collateral or no collateral, from lender's perspective." } } }, "auth_ref": [ "r211", "r212", "r931", "r932", "r933", "r934", "r1005", "r1006" ] }, "us-gaap_CollateralPledgedMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CollateralPledgedMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Collateral Pledged [Member]", "terseLabel": "Collateral Pledged [Member]", "documentation": "Pledge of specific property to serve as protection against default." } } }, "auth_ref": [ "r211", "r212" ] }, "us-gaap_CollateralizedSecuritiesOtherMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CollateralizedSecuritiesOtherMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Collateralized Securities, Other [Member]", "terseLabel": "Other Securities [Member]", "documentation": "Other types of collateralized securities." } } }, "auth_ref": [] }, "ffin_CombinedRateAndMaturityMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CombinedRateAndMaturityMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "documentation": "Combined Rate and Maturity [Member]", "label": "Combined Rate and Maturity [Member]", "terseLabel": "Combined Rate and Maturity [Member]" } } }, "auth_ref": [] }, "ffin_CommercialAndIndustrialMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CommercialAndIndustrialMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D" ], "lang": { "en-us": { "role": { "label": "Commercial and Industrial [Member]", "documentation": "Commercial and Industrial [Member]", "terseLabel": "Commercial and Industrial [Member]" } } }, "auth_ref": [] }, "ffin_CommercialBancsharesIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CommercialBancsharesIncMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Commercial Bancshares Inc.", "label": "Commercial Bancshares Inc [Member]", "terseLabel": "Commercial Bancshares, Inc [Member]" } } }, "auth_ref": [] }, "us-gaap_CommercialMortgageBackedSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommercialMortgageBackedSecuritiesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Commercial Mortgage-Backed Securities [Member]", "terseLabel": "Commercial Mortgage-Backed Securities [Member]", "documentation": "Securities collateralized by commercial real estate mortgage loans." } } }, "auth_ref": [ "r984", "r986", "r987", "r1171", "r1177", "r1178", "r1214", "r1215" ] }, "us-gaap_CommercialPortfolioSegmentMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommercialPortfolioSegmentMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Commercial Portfolio Segment [Member]", "terseLabel": "Commercial [Member]", "documentation": "Portfolio segment of the company's total financing receivables related to commercial receivables." } } }, "auth_ref": [ "r1186", "r1188", "r1189", "r1190", "r1191", "r1192", "r1193" ] }, "us-gaap_CommercialRealEstatePortfolioSegmentMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommercialRealEstatePortfolioSegmentMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Commercial Real Estate Portfolio Segment [Member]", "terseLabel": "Real Estate [Member]", "documentation": "Portfolio segment of the company's total financing receivables related to commercial real estate." } } }, "auth_ref": [ "r1186", "r1188", "r1189", "r1190", "r1191", "r1192", "r1193" ] }, "us-gaap_CommitmentsAndContingencies": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommitmentsAndContingencies", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Commitments and Contingencies", "terseLabel": "COMMITMENTS AND CONTINGENCIES", "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur." } } }, "auth_ref": [ "r47", "r82", "r752", "r810" ] }, "us-gaap_CommitmentsToExtendCreditMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommitmentsToExtendCreditMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Commitments to Extend Credit [Member]", "verboseLabel": "Commitments to Extend Credit [Member]", "documentation": "Loan commitments are legally binding commitments to extend credit to a counterparty under certain terms and conditions." } } }, "auth_ref": [] }, "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockCapitalSharesReservedForFutureIssuance", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Common Stock, Capital Shares Reserved for Future Issuance", "terseLabel": "Shares of stock for issuance under the plan", "documentation": "Aggregate number of common shares reserved for future issuance." } } }, "auth_ref": [ "r50" ] }, "us-gaap_CommonStockDividendsPerShareDeclared": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockDividendsPerShareDeclared", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Common Stock, Dividends, Per Share, Declared", "terseLabel": "Cash dividend per share", "verboseLabel": "DIVIDENDS PER SHARE", "documentation": "Aggregate dividends declared during the period for each share of common stock outstanding." } } }, "auth_ref": [ "r70" ] }, "us-gaap_CommonStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Common Stock [Member]", "terseLabel": "Common Stock [Member]", "documentation": "Stock that is subordinate to all other stock of the issuer." } } }, "auth_ref": [ "r1014", "r1015", "r1016", "r1018", "r1019", "r1020", "r1021", "r1144", "r1145", "r1147", "r1260", "r1325", "r1329" ] }, "us-gaap_CommonStockParOrStatedValuePerShare": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockParOrStatedValuePerShare", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnauditedParenthetical" ], "lang": { "en-us": { "role": { "label": "Common Stock, Par or Stated Value Per Share", "terseLabel": "Common stock, par value", "documentation": "Face amount or stated value per share of common stock." } } }, "auth_ref": [ "r50" ] }, "us-gaap_CommonStockSharesAuthorized": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockSharesAuthorized", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnauditedParenthetical" ], "lang": { "en-us": { "role": { "label": "Common Stock, Shares Authorized", "terseLabel": "Common stock, shares authorized", "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws." } } }, "auth_ref": [ "r50", "r811" ] }, "us-gaap_CommonStockSharesIssued": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockSharesIssued", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnauditedParenthetical" ], "lang": { "en-us": { "role": { "totalLabel": "Common Stock, Shares, Issued, Total", "label": "Common Stock, Shares, Issued", "terseLabel": "Common stock, shares issued", "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury." } } }, "auth_ref": [ "r50" ] }, "us-gaap_CommonStockSharesOutstanding": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockSharesOutstanding", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Common Stock, Shares, Outstanding", "periodEndLabel": "Ending Balance, Shares", "periodStartLabel": "Beginning Balance, Shares", "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation." } } }, "auth_ref": [ "r10", "r50", "r811", "r830", "r1329", "r1330" ] }, "ffin_CommonStockTransactionsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CommonStockTransactionsAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Sales of company common stock through the incentive stock option plan.", "label": "Common Stock Transactions [Abstract]", "terseLabel": "Common stock transactions:" } } }, "auth_ref": [] }, "us-gaap_CommonStockValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockValue", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "verboseLabel": "COMMON STOCK - ($0.01 par value, authorized 200,000,000 shares; 142,628,163, 142,467,687 and 142,532,116 shares issued at September 30, 2022 and 2021, and December 31, 2021, respectively)", "label": "Common Stock, Value, Issued", "periodEndLabel": "Common Stock, Value, Issued, Ending Balance", "periodStartLabel": "Common Stock, Value, Issued, Beginning Balance", "totalLabel": "Common Stock, Value, Issued, Total", "terseLabel": "COMMON STOCK - $0.01 par value, authorized 200,000,000 shares; 143,279,030 and 143,213,102 shares issued at March 31, 2026 and December 31, 2025, respectively", "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity." } } }, "auth_ref": [ "r50", "r385", "r390", "r753", "r995" ] }, "ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "CompActuallyPaidVsCoSelectedMeasureTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Compensation Actually Paid vs. Company Selected Measure [Text Block]", "terseLabel": "Compensation Actually Paid vs. Company Selected Measure" } } }, "auth_ref": [ "r1079" ] }, "ecd_CompActuallyPaidVsNetIncomeTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "CompActuallyPaidVsNetIncomeTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Compensation Actually Paid vs. Net Income [Text Block]", "terseLabel": "Compensation Actually Paid vs. Net Income" } } }, "auth_ref": [ "r1078" ] }, "ecd_CompActuallyPaidVsOtherMeasureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "CompActuallyPaidVsOtherMeasureTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Compensation Actually Paid vs. Other Measure [Text Block]", "terseLabel": "Compensation Actually Paid vs. Other Measure" } } }, "auth_ref": [ "r1080" ] }, "ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "CompActuallyPaidVsTotalShareholderRtnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Compensation Actually Paid vs. Total Shareholder Return [Text Block]", "terseLabel": "Compensation Actually Paid vs. Total Shareholder Return" } } }, "auth_ref": [ "r1077" ] }, "us-gaap_ComprehensiveIncomeNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ComprehensiveIncomeNetOfTax", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "COMPREHENSIVE EARNINGS", "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners." } } }, "auth_ref": [ "r19", "r188", "r190", "r196", "r730", "r764", "r765" ] }, "us-gaap_ConcentrationRiskBenchmarkDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConcentrationRiskBenchmarkDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Concentration Risk Benchmark [Domain]", "terseLabel": "Concentration Risk Benchmark [Domain]", "documentation": "The denominator in a calculation of a disclosed concentration risk percentage." } } }, "auth_ref": [ "r255", "r275", "r780", "r781", "r877", "r1151", "r1152", "r1153", "r1154", "r1155" ] }, "us-gaap_ConcentrationRiskByBenchmarkAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConcentrationRiskByBenchmarkAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Concentration Risk Benchmark [Axis]", "terseLabel": "Concentration Risk Benchmark [Axis]", "documentation": "Information by benchmark of concentration risk." } } }, "auth_ref": [ "r255", "r275", "r780", "r781", "r877", "r1151", "r1152", "r1153", "r1154", "r1155" ] }, "us-gaap_ConcentrationRiskByTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConcentrationRiskByTypeAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Concentration Risk Type [Axis]", "terseLabel": "Concentration Risk Type [Axis]", "documentation": "Information by type of concentration risk, for example, but not limited to, asset, liability, net assets, geographic, customer, employees, supplier, lender." } } }, "auth_ref": [ "r255", "r275", "r780", "r781", "r877", "r1151", "r1152", "r1153", "r1154", "r1155" ] }, "us-gaap_ConcentrationRiskPercentage1": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConcentrationRiskPercentage1", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Concentration Risk, Percentage", "terseLabel": "Concentration risk, percentage", "documentation": "For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the \"benchmark\" (or denominator) in the equation, this concept represents the concentration percentage derived from the division." } } }, "auth_ref": [ "r255", "r275", "r1151", "r1152", "r1153", "r1154", "r1155" ] }, "ffin_ConcentrationRiskThresholdPercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ConcentrationRiskThresholdPercentage", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Concentration Risk Threshold Percentage", "documentation": "Concentration Risk Threshold Percentage", "terseLabel": "Concentration risk threshold percentage" } } }, "auth_ref": [] }, "us-gaap_ConcentrationRiskTypeDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConcentrationRiskTypeDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Concentration Risk Type [Domain]", "terseLabel": "Concentration Risk Type [Domain]", "documentation": "For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, identifies the type (for example, asset, liability, net assets, geographic, customer, employees, supplier, lender) of the concentration." } } }, "auth_ref": [ "r255", "r275", "r780", "r781", "r877", "r1151", "r1152", "r1153", "r1154", "r1155" ] }, "us-gaap_ConsolidationPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConsolidationPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Consolidation, Policy [Policy Text Block]", "terseLabel": "Consolidation", "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary." } } }, "auth_ref": [ "r36", "r906" ] }, "ffin_ConstructionAndDevelopmentMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ConstructionAndDevelopmentMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Construction And Development.", "label": "Construction And Development [Member]", "terseLabel": "Construction & Development [Member]" } } }, "auth_ref": [] }, "us-gaap_ConsumerPortfolioSegmentMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConsumerPortfolioSegmentMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Consumer Portfolio Segment [Member]", "terseLabel": "Consumer [Member]", "documentation": "Portfolio segment of the company's total financing receivables related to consumer receivables." } } }, "auth_ref": [ "r1186", "r1188", "r1189", "r1190", "r1191", "r1192", "r1193" ] }, "ffin_ContraAccountRelatedToSharesAcquiredInConnectionWithDirectorsDeferredCompensationPlan": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ContraAccountRelatedToSharesAcquiredInConnectionWithDirectorsDeferredCompensationPlan", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "DEFERRED COMPENSATION", "documentation": "Contra account related to shares acquired in connection with directors deferred compensation plan.", "label": "Contra Account Related To Shares Acquired In Connection With Directors Deferred Compensation Plan" } } }, "auth_ref": [] }, "us-gaap_ContributionOfProperty": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ContributionOfProperty", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Initial contribution included in other assets", "label": "Contribution of Property", "documentation": "Value of property contributed in noncash investing and financing activities." } } }, "auth_ref": [ "r25", "r26", "r27" ] }, "us-gaap_CorporateBondSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CorporateBondSecuritiesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Corporate Bond Securities [Member]", "terseLabel": "Corporate Bonds [Member]", "documentation": "This category includes information about long-term debt securities that are issued by either a domestic or foreign corporate business entity with a date certain promise of repayment and a return to the holder for the time value of money (for example, variable or fixed interest, original issue discount)." } } }, "auth_ref": [] }, "us-gaap_CorporateDebtSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CorporateDebtSecuritiesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Corporate Debt Securities [Member]", "terseLabel": "Corporate Bonds and Other [Member]", "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment." } } }, "auth_ref": [ "r951", "r953", "r955", "r984", "r996", "r1012", "r1322" ] }, "dei_CoverAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "CoverAbstract", "lang": { "en-us": { "role": { "label": "Cover [Abstract]", "documentation": "Cover page." } } }, "auth_ref": [] }, "ffin_CreditCardFees": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "CreditCardFees", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Credit card fees", "label": "Credit card fees", "documentation": "Credit card fees" } } }, "auth_ref": [] }, "dei_CurrentFiscalYearEndDate": { "xbrltype": "gMonthDayItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "CurrentFiscalYearEndDate", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Current Fiscal Year End Date", "documentation": "End date of current fiscal year in the format --MM-DD." } } }, "auth_ref": [] }, "ffin_DebitCardExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "DebitCardExpense", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Debit card expense", "label": "Debit Card Expense", "documentation": "Debit Card Expense" } } }, "auth_ref": [] }, "ffin_DebitCardFees": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "DebitCardFees", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Debit card fees", "label": "Debit card fees", "documentation": "Debit card fees" } } }, "auth_ref": [] }, "us-gaap_DebtDisclosureAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtDisclosureAbstract", "lang": { "en-us": { "role": { "label": "Debt Disclosure [Abstract]" } } }, "auth_ref": [] }, "us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleAllowanceForCreditLoss", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Amount of allowance for credit loss", "label": "Debt Securities, Available-for-Sale, Allowance for Credit Loss", "periodEndLabel": "Debt Securities, Available-for-sale, Allowance for Credit Loss, Ending Balance", "periodStartLabel": "Debt Securities, Available-for-sale, Allowance for Credit Loss, Beginning Balance", "totalLabel": "Debt Securities, Available-for-sale, Allowance for Credit Loss, Total", "documentation": "Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r290", "r340", "r348", "r349" ] }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Available-for-sale securities, continuous unrealized loss position 12 Months or Longer, Fair Value", "label": "Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer", "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset." } } }, "auth_ref": [ "r125", "r345", "r943" ] }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Available-for-sale securities, continuous unrealized loss position 12 Months or Longer, Unrealized Loss", "label": "Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss", "negatedLabel": "Available-for-sale securities, continuous unrealized loss position 12 Months or Longer, Unrealized Loss", "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset." } } }, "auth_ref": [ "r125", "r345" ] }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Available-for-sale securities, continuous unrealized loss position Less than 12 Months, Fair Value", "label": "Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months", "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset." } } }, "auth_ref": [ "r125", "r345", "r943" ] }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss, Total", "totalLabel": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss, Total", "terseLabel": "Available-for-sale securities, continuous unrealized loss position Less than 12 Months, Unrealized Loss", "label": "Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss", "negatedLabel": "Available-for-sale securities, continuous unrealized loss position Less than 12 Months, Unrealized Loss", "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset." } } }, "auth_ref": [ "r125", "r345" ] }, "us-gaap_DebtSecuritiesAvailableForSaleRealizedGain": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleRealizedGain", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Debt Securities, Available-for-Sale, Realized Gain", "label": "Debt Securities, Available-for-Sale, Realized Gain", "documentation": "Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r317" ] }, "us-gaap_DebtSecuritiesAvailableForSaleTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale [Table]", "documentation": "Disclosure of information about investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298" ] }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedGainLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleUnrealizedGainLoss", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Unrealized Gain (Loss)", "totalLabel": "Debt Securities, Available-for-Sale, Unrealized Gain (Loss), Total", "terseLabel": "Net gain on sale of available-for-sale securities", "documentation": "Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r1169", "r1170" ] }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Debt Securities, Available-for-sale, Unrealized Loss Position, Fair value,Total", "verboseLabel": "Available-for-sale securities, continuous unrealized loss position, Fair Value", "label": "Debt Securities, Available-for-Sale, Unrealized Loss Position", "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss." } } }, "auth_ref": [ "r122", "r342", "r943" ] }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Available-for-sale securities, continuous unrealized loss position, Unrealized Loss", "label": "Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss", "totalLabel": "Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total", "negatedLabel": "Available-for-sale securities, continuous unrealized loss position, Unrealized Loss", "negatedTotalLabel": "Available-for-sale securities, continuous unrealized loss position, Unrealized Loss", "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset." } } }, "auth_ref": [ "r123", "r343" ] }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesTables" ], "lang": { "en-us": { "role": { "terseLabel": "Continuous Unrealized-Loss Position of Available-for-Sale Securities", "label": "Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]", "documentation": "Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset." } } }, "auth_ref": [ "r121", "r943", "r1199" ] }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions": { "xbrltype": "integerItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Number of investment positions", "label": "Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions", "documentation": "Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset." } } }, "auth_ref": [ "r124", "r344" ] }, "us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss", "totalLabel": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Total", "terseLabel": "Allowance For Credit Losses Available-For-Sale Securities", "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity)." } } }, "auth_ref": [ "r285", "r302", "r304", "r725" ] }, "us-gaap_DebtSecuritiesTradingRestricted": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtSecuritiesTradingRestricted", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Trading, Restricted", "terseLabel": "Securities pledged as collateral", "documentation": "Amount of restricted investment in debt security measured at fair value with change in fair value recognized in net income (trading)." } } }, "auth_ref": [ "r668", "r875", "r876" ] }, "us-gaap_DebtWeightedAverageInterestRate": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DebtWeightedAverageInterestRate", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail" ], "lang": { "en-us": { "role": { "label": "Debt, Weighted Average Interest Rate", "terseLabel": "Weighted-Average Interest Rate Reduction", "documentation": "Weighted average interest rate of debt outstanding." } } }, "auth_ref": [] }, "us-gaap_DeferredCompensationShareBasedPaymentsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DeferredCompensationShareBasedPaymentsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Deferred Compensation, Share-Based Payments [Member]", "terseLabel": "Deferred Compensation [Member]", "documentation": "Deferred compensation arrangements (such as stock or unit options and share or unit awards) that are equity-based payments with individual employees. The arrangements are generally based on employment contracts between the entity and one or more selected officers or key employees, and contain a promise by the employer to pay certain amounts or benefits at designated future dates, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Other \"sub-members\" can be added as necessary." } } }, "auth_ref": [] }, "us-gaap_DeferredTaxAssetsLiabilitiesNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DeferredTaxAssetsLiabilitiesNet", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Deferred Tax Assets", "label": "Deferred Tax Assets, Net", "totalLabel": "Deferred Tax Assets, Net, Total", "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting." } } }, "auth_ref": [ "r1243" ] }, "us-gaap_Deposits": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "Deposits", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Liabilities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Deposits", "totalLabel": "Total deposits", "documentation": "The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others." } } }, "auth_ref": [ "r76" ] }, "ffin_DepositsWithNoStatedMaturities": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "DepositsWithNoStatedMaturities", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "documentation": "Deposits with no stated maturities.", "label": "Deposits With No Stated Maturities", "terseLabel": "Deposits with no stated maturities" } } }, "auth_ref": [] }, "us-gaap_DepreciationAmortizationAndAccretionNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DepreciationAmortizationAndAccretionNet", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Depreciation, Amortization and Accretion, Net", "terseLabel": "Depreciation and amortization", "totalLabel": "Depreciation, Amortization and Accretion, Net, Total", "documentation": "The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method." } } }, "auth_ref": [ "r5" ] }, "us-gaap_DerivativeFairValueOfDerivativeAsset": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeFairValueOfDerivativeAsset", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Asset Derivative Fair Value", "totalLabel": "Derivative Asset, Fair Value, Gross Asset, Total", "label": "Derivative Asset, Subject to Master Netting Arrangement, before Offset", "verboseLabel": "IRLCs", "documentation": "Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement." } } }, "auth_ref": [ "r14", "r181", "r583", "r895", "r896", "r897", "r898" ] }, "us-gaap_DerivativeFairValueOfDerivativeLiability": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeFairValueOfDerivativeLiability", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Derivative Liability, Fair Value, Gross Liability, Total", "label": "Derivative Liability, Subject to Master Netting Arrangement, before Offset", "verboseLabel": "Liability Derivative Fair Value", "terseLabel": "Forward mortgage-backed securities trades asset (liability)", "negatedLabel": "Forward mortgage-backed securities trades", "documentation": "Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement." } } }, "auth_ref": [ "r14", "r181", "r583", "r895", "r896", "r897", "r898" ] }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract", "lang": { "en-us": { "role": { "label": "Derivative Instruments and Hedging Activities Disclosure [Abstract]" } } }, "auth_ref": [] }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstruments" ], "lang": { "en-us": { "role": { "label": "Derivative Instruments and Hedging Activities Disclosure [Text Block]", "terseLabel": "Derivative Financial Instruments", "documentation": "The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts." } } }, "auth_ref": [ "r547", "r548", "r549", "r550", "r551", "r552", "r553", "r554", "r555", "r556", "r557", "r570", "r571", "r572", "r573", "r574", "r575", "r576", "r577", "r578", "r579", "r580", "r581", "r582", "r585", "r596", "r979", "r980", "r981", "r982", "r983" ] }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail" ], "lang": { "en-us": { "role": { "label": "Derivative Instruments and Hedging Activities Disclosures [Line Items]", "terseLabel": "Derivative Instruments and Hedging Activities Disclosures [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r563", "r564", "r566", "r567", "r568", "r569", "r979" ] }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail" ], "lang": { "en-us": { "role": { "label": "Derivative Instruments and Hedging Activities Disclosures [Table]", "terseLabel": "Derivative Instruments and Hedging Activities Disclosures [Table]", "documentation": "Disclosure of information about derivatives and hedging activities." } } }, "auth_ref": [ "r563", "r564", "r565", "r566", "r567", "r568", "r569", "r979" ] }, "us-gaap_DerivativeLiabilityNoncurrentStatementOfFinancialPositionExtensibleEnumeration": { "xbrltype": "enumerationSetItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeLiabilityNoncurrentStatementOfFinancialPositionExtensibleEnumeration", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]", "label": "Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]", "documentation": "Indicates line item in statement of financial position that includes derivative liability classified as noncurrent." } } }, "auth_ref": [ "r1127" ] }, "us-gaap_DerivativeNotionalAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DerivativeNotionalAmount", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail" ], "lang": { "en-us": { "role": { "label": "Derivative, Notional Amount", "terseLabel": "Outstanding Notional Balance", "documentation": "Nominal or face amount used to calculate payment on derivative." } } }, "auth_ref": [ "r979", "r1257", "r1258" ] }, "srt_DirectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "DirectorMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Director [Member]", "label": "Director [Member]", "documentation": "Person serving on board of directors." } } }, "auth_ref": [ "r1125", "r1161", "r1327" ] }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensation" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement [Text Block]", "terseLabel": "Stock Option Plan and Restricted Stock Plan", "verboseLabel": "Stock Based Compensation", "documentation": "The entire disclosure for share-based payment arrangement." } } }, "auth_ref": [ "r407", "r410", "r439", "r440", "r442", "r959" ] }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement [Abstract]" } } }, "auth_ref": [] }, "us-gaap_DividendsAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DividendsAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "label": "Dividends [Axis]", "documentation": "Information by event wherein earnings are distributed to shareholder." } } }, "auth_ref": [ "r1208", "r1210" ] }, "us-gaap_DividendsCommonStockCash": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DividendsCommonStockCash", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Dividends, Common Stock, Cash", "negatedLabel": "Cash dividends declared", "documentation": "Amount of paid and unpaid common stock dividends declared with the form of settlement in cash." } } }, "auth_ref": [ "r70" ] }, "us-gaap_DividendsDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DividendsDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "label": "Dividends [Domain]", "documentation": "Event wherein earnings are distributed to shareholder." } } }, "auth_ref": [ "r1208", "r1210" ] }, "us-gaap_DividendsPayableCurrentAndNoncurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DividendsPayableCurrentAndNoncurrent", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Liabilities", "weight": 1.0, "order": 5.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Dividends Payable", "terseLabel": "DIVIDENDS PAYABLE", "verboseLabel": "Dividends Payable", "documentation": "Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding." } } }, "auth_ref": [ "r42", "r46", "r79", "r1022", "r1290" ] }, "dei_DocumentFiscalPeriodFocus": { "xbrltype": "fiscalPeriodItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentFiscalPeriodFocus", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Document Fiscal Period Focus", "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY." } } }, "auth_ref": [] }, "dei_DocumentFiscalYearFocus": { "xbrltype": "gYearItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentFiscalYearFocus", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Document Fiscal Year Focus", "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006." } } }, "auth_ref": [] }, "dei_DocumentPeriodEndDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentPeriodEndDate", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Document Period End Date", "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD." } } }, "auth_ref": [] }, "dei_DocumentQuarterlyReport": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentQuarterlyReport", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Document Quarterly Report", "documentation": "Boolean flag that is true only for a form used as an quarterly report." } } }, "auth_ref": [ "r1029" ] }, "dei_DocumentTransitionReport": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentTransitionReport", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "terseLabel": "Document Transition Report", "label": "Document Transition Report", "documentation": "Boolean flag that is true only for a form used as a transition report." } } }, "auth_ref": [ "r1061" ] }, "dei_DocumentType": { "xbrltype": "submissionTypeItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentType", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Document Type", "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'." } } }, "auth_ref": [] }, "us-gaap_DoubtfulMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "DoubtfulMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfDebtRestructuredLoansStillAccruingForCreditLossesParentheticalDetail" ], "lang": { "en-us": { "role": { "label": "Doubtful [Member]", "terseLabel": "Doubtful [Member]", "documentation": "A category of financing receivables that have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable." } } }, "auth_ref": [ "r110", "r111", "r112", "r1196", "r1197" ] }, "ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]", "terseLabel": "Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year" } } }, "auth_ref": [ "r1072" ] }, "us-gaap_EarningsPerShareAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EarningsPerShareAbstract", "lang": { "en-us": { "role": { "label": "Earnings Per Share [Abstract]" } } }, "auth_ref": [] }, "us-gaap_EarningsPerShareBasic": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EarningsPerShareBasic", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail2": { "parentTag": "us-gaap_EarningsPerShareDiluted", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Earnings Per Share, Basic, Total", "label": "Earnings Per Share, Basic", "terseLabel": "NET EARNINGS PER SHARE, BASIC", "verboseLabel": "Net earnings per share, basic, Per Share Amount", "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period." } } }, "auth_ref": [ "r172", "r197", "r225", "r226", "r227", "r228", "r229", "r230", "r231", "r232", "r236", "r239", "r246", "r247", "r248", "r251", "r383", "r443", "r473", "r539", "r598", "r599", "r731", "r766", "r909" ] }, "us-gaap_EarningsPerShareDiluted": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EarningsPerShareDiluted", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail2": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "label": "Earnings Per Share, Diluted", "terseLabel": "NET EARNINGS PER SHARE, DILUTED", "totalLabel": "Net earnings per share, diluted, Per Share Amount", "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period." } } }, "auth_ref": [ "r172", "r197", "r225", "r226", "r227", "r228", "r229", "r230", "r231", "r232", "r239", "r246", "r247", "r248", "r251", "r383", "r443", "r473", "r539", "r598", "r599", "r731", "r766", "r909" ] }, "us-gaap_EarningsPerSharePolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EarningsPerSharePolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Earnings Per Share, Policy [Policy Text Block]", "terseLabel": "Per Share Data", "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements." } } }, "auth_ref": [ "r28", "r29", "r250" ] }, "ffin_EffectOfStockOptionsPerShareAmount": { "xbrltype": "perShareItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "EffectOfStockOptionsPerShareAmount", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail2": { "parentTag": "us-gaap_EarningsPerShareDiluted", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "documentation": "Effect of stock options per share amount.", "label": "Effect Of Stock Options Per Share Amount", "terseLabel": "Effect of stock options and stock grants, Per Share Amount" } } }, "auth_ref": [] }, "us-gaap_EffectiveIncomeTaxRateContinuingOperations": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EffectiveIncomeTaxRateContinuingOperations", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Effective Income Tax Rate Reconciliation, Percent, Total", "label": "Effective Income Tax Rate Reconciliation, Percent", "verboseLabel": "Effective tax rates on pre-tax income", "documentation": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations." } } }, "auth_ref": [ "r451", "r961" ] }, "us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent", "terseLabel": "Federal statutory tax rate", "documentation": "Percentage of domestic federal statutory tax rate applicable to pretax income (loss)." } } }, "auth_ref": [ "r211", "r215", "r451", "r462", "r961" ] }, "ffin_EmployeeMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "EmployeeMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Employee.", "label": "Employee [Member]", "terseLabel": "Employee [Member]" } } }, "auth_ref": [] }, "us-gaap_EmployeeServiceShareBasedCompensationEstimatedQuantityOfSharesToBeRepurchasedInFollowingPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EmployeeServiceShareBasedCompensationEstimatedQuantityOfSharesToBeRepurchasedInFollowingPeriod", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Shares Expected to be Repurchased, Next Fiscal Period", "terseLabel": "Minimum number of shares that company is required to repurchase", "documentation": "Number of shares to be repurchased in accordance with a policy to use treasury stock to satisfy share-award conversions." } } }, "auth_ref": [ "r35" ] }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total", "label": "Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount", "terseLabel": "Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Plan", "documentation": "Amount of cost not yet recognized for nonvested award under share-based payment arrangement." } } }, "auth_ref": [ "r441" ] }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition", "terseLabel": "Weighted-average period of unrecognized compensation cost recognition, years", "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days." } } }, "auth_ref": [ "r441" ] }, "us-gaap_EmployeeStockOptionMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EmployeeStockOptionMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Employee Stock Option [Member]", "terseLabel": "Employee Stock Option", "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time." } } }, "auth_ref": [ "r1217", "r1218", "r1219", "r1220", "r1221", "r1222", "r1223", "r1224", "r1225", "r1226", "r1227", "r1228", "r1229", "r1230", "r1231", "r1232", "r1233", "r1234", "r1235", "r1236", "r1237", "r1238", "r1239", "r1240", "r1241", "r1242" ] }, "dei_EntityAddressAddressLine1": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityAddressAddressLine1", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, Address Line One", "documentation": "Address Line 1 such as Attn, Building Name, Street Name" } } }, "auth_ref": [] }, "dei_EntityAddressCityOrTown": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityAddressCityOrTown", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, City or Town", "documentation": "Name of the City or Town" } } }, "auth_ref": [] }, "dei_EntityAddressPostalZipCode": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityAddressPostalZipCode", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, Postal Zip Code", "documentation": "Code for the postal or zip code" } } }, "auth_ref": [] }, "dei_EntityAddressStateOrProvince": { "xbrltype": "stateOrProvinceItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityAddressStateOrProvince", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, State or Province", "documentation": "Name of the state or province." } } }, "auth_ref": [] }, "dei_EntityCentralIndexKey": { "xbrltype": "centralIndexKeyItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityCentralIndexKey", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Central Index Key", "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK." } } }, "auth_ref": [ "r1027" ] }, "dei_EntityCommonStockSharesOutstanding": { "xbrltype": "sharesItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityCommonStockSharesOutstanding", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Common Stock, Shares Outstanding", "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument." } } }, "auth_ref": [] }, "dei_EntityCurrentReportingStatus": { "xbrltype": "yesNoItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityCurrentReportingStatus", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Current Reporting Status", "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure." } } }, "auth_ref": [] }, "dei_EntityEmergingGrowthCompany": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityEmergingGrowthCompany", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Emerging Growth Company", "documentation": "Indicate if registrant meets the emerging growth company criteria." } } }, "auth_ref": [ "r1027" ] }, "dei_EntityExTransitionPeriod": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityExTransitionPeriod", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Ex Transition Period", "documentation": "Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards." } } }, "auth_ref": [ "r1112" ] }, "dei_EntityFileNumber": { "xbrltype": "fileNumberItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityFileNumber", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Securities Act File Number", "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen." } } }, "auth_ref": [] }, "dei_EntityFilerCategory": { "xbrltype": "filerCategoryItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityFilerCategory", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Filer Category", "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure." } } }, "auth_ref": [ "r1027" ] }, "dei_EntityIncorporationStateCountryCode": { "xbrltype": "edgarStateCountryItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityIncorporationStateCountryCode", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Incorporation, State or Country Code", "documentation": "Two-character EDGAR code representing the state or country of incorporation." } } }, "auth_ref": [] }, "dei_EntityInteractiveDataCurrent": { "xbrltype": "yesNoItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityInteractiveDataCurrent", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Interactive Data Current", "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files)." } } }, "auth_ref": [ "r1111" ] }, "dei_EntityRegistrantName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityRegistrantName", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Registrant Name", "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC." } } }, "auth_ref": [ "r1027" ] }, "dei_EntityShellCompany": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityShellCompany", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Shell Company", "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act." } } }, "auth_ref": [ "r1027" ] }, "dei_EntitySmallBusiness": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntitySmallBusiness", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Small Business", "documentation": "Indicates that the company is a Smaller Reporting Company (SRC)." } } }, "auth_ref": [ "r1027" ] }, "dei_EntityTaxIdentificationNumber": { "xbrltype": "employerIdItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityTaxIdentificationNumber", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Tax Identification Number", "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS." } } }, "auth_ref": [ "r1027" ] }, "ecd_EqtyAwrdsAdjFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "EqtyAwrdsAdjFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Equity Awards Adjustments, Footnote [Text Block]", "terseLabel": "Equity Awards Adjustments, Footnote" } } }, "auth_ref": [ "r1066" ] }, "ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]", "terseLabel": "Equity Awards Adjustments, Excluding Value Reported in Compensation Table" } } }, "auth_ref": [ "r1107" ] }, "ecd_EqtyAwrdsAdjsMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "EqtyAwrdsAdjsMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Equity Awards Adjustments [Member]", "terseLabel": "Equity Awards Adjustments" } } }, "auth_ref": [ "r1107" ] }, "ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "EqtyAwrdsInSummryCompstnTblForAplblYrMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]", "terseLabel": "Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table" } } }, "auth_ref": [ "r1107" ] }, "us-gaap_EquipmentExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EquipmentExpense", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 11.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Equipment Expense", "terseLabel": "Equipment expense", "documentation": "This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses." } } }, "auth_ref": [] }, "us-gaap_EquityClassOfTreasuryStockLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EquityClassOfTreasuryStockLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Equity, Class of Treasury Stock [Line Items]", "label": "Equity, Class of Treasury Stock [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [] }, "us-gaap_EquityComponentDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EquityComponentDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Equity Component [Domain]", "terseLabel": "Equity Component [Domain]", "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc." } } }, "auth_ref": [ "r10", "r170", "r171", "r172", "r192", "r193", "r194", "r220", "r221", "r222", "r224", "r231", "r233", "r235", "r253", "r320", "r321", "r363", "r382", "r393", "r443", "r460", "r461", "r470", "r471", "r472", "r474", "r538", "r539", "r586", "r587", "r588", "r589", "r590", "r591", "r592", "r593", "r594", "r595", "r597", "r636", "r638", "r639", "r640", "r641", "r642", "r645", "r646", "r648", "r762", "r771", "r772", "r773", "r793", "r848" ] }, "ecd_EquityValuationAssumptionDifferenceFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "EquityValuationAssumptionDifferenceFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Equity Valuation Assumption Difference, Footnote [Text Block]", "terseLabel": "Equity Valuation Assumption Difference, Footnote" } } }, "auth_ref": [ "r1076" ] }, "ecd_ErrCompAnalysisTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ErrCompAnalysisTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Erroneous Compensation Analysis [Text Block]", "terseLabel": "Erroneous Compensation Analysis" } } }, "auth_ref": [ "r1034", "r1044", "r1054", "r1086" ] }, "ecd_ErrCompRecoveryTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ErrCompRecoveryTable", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Erroneously Awarded Compensation Recovery [Table]", "terseLabel": "Erroneously Awarded Compensation Recovery" } } }, "auth_ref": [ "r1031", "r1041", "r1051", "r1083" ] }, "us-gaap_EstimateOfFairValueFairValueDisclosureMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EstimateOfFairValueFairValueDisclosureMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Estimate of Fair Value Measurement [Member]", "terseLabel": "Estimated Fair Value [Member]", "documentation": "Measured as an estimate of fair value." } } }, "auth_ref": [ "r380", "r626", "r628", "r631", "r892", "r945", "r946" ] }, "ecd_ExecutiveCategoryAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ExecutiveCategoryAxis", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Executive Category [Axis]", "terseLabel": "Executive Category:" } } }, "auth_ref": [ "r1082" ] }, "ffin_ExecutivesAndOtherOfficersMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ExecutivesAndOtherOfficersMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Executives and other officers.", "label": "Executives And Other Officers [Member]", "terseLabel": "Executives And Other Officers [Member]" } } }, "auth_ref": [] }, "us-gaap_ExtendedMaturityMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ExtendedMaturityMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "label": "Extended Maturity [Member]", "terseLabel": "Maturity Extended [Member]", "documentation": "Loan modification for an extension of the term of a loan in which it must be paid." } } }, "auth_ref": [ "r281", "r919" ] }, "ffin_FBCBancsharesIncorporationAndFirstBankNationalAssociationMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FBCBancsharesIncorporationAndFirstBankNationalAssociationMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateParentheticalDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "documentation": "FBC Bancshares Incorporation And First Bank National Association [Member]", "label": "FBC Bancshares Incorporation And First Bank National Association [Member]", "terseLabel": "FBC Bancshares, Inc. and First Bank, N.A. [Member]" } } }, "auth_ref": [] }, "ffin_FScottDueserMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FScottDueserMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "F Scott Dueser [Member]", "documentation": "F Scott Dueser Member" } } }, "auth_ref": [] }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]", "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r601", "r602", "r615", "r984" ] }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Recurring and Nonrecurring [Table]", "terseLabel": "Fair Value Measurements, Recurring and Nonrecurring [Table]", "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis." } } }, "auth_ref": [ "r601", "r602", "r615", "r984" ] }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueAssetsMeasuredOnRecurringBasisTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresTables" ], "lang": { "en-us": { "role": { "label": "Fair Value, Assets Measured on Recurring Basis [Table Text Block]", "terseLabel": "Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis", "documentation": "Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3)." } } }, "auth_ref": [ "r1262", "r1263" ] }, "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]", "terseLabel": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r626", "r628", "r629", "r892", "r994", "r1272" ] }, "us-gaap_FairValueByBalanceSheetGroupingTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueByBalanceSheetGroupingTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, by Balance Sheet Grouping [Table]", "terseLabel": "Fair Value, by Balance Sheet Grouping [Table]", "documentation": "Disclosure of information about the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities." } } }, "auth_ref": [ "r626", "r629", "r892", "r994", "r1270", "r1272" ] }, "us-gaap_FairValueByBalanceSheetGroupingTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueByBalanceSheetGroupingTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresTables" ], "lang": { "en-us": { "role": { "label": "Fair Value, by Balance Sheet Grouping [Table Text Block]", "terseLabel": "Schedule of Estimated Fair Values and Carrying Values of All Financial Instruments", "documentation": "Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities." } } }, "auth_ref": [ "r627", "r630", "r892", "r994", "r1272" ] }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueByFairValueHierarchyLevelAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value Hierarchy and NAV [Axis]", "terseLabel": "Fair Value Hierarchy and NAV [Axis]", "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient." } } }, "auth_ref": [ "r380", "r395", "r396", "r397", "r398", "r399", "r400", "r402", "r403", "r600", "r602", "r603", "r604", "r605", "r614", "r615", "r617", "r626", "r657", "r658", "r659", "r892", "r945", "r946", "r951", "r952", "r953", "r954", "r955", "r984", "r987", "r994" ] }, "us-gaap_FairValueByLiabilityClassAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueByLiabilityClassAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Liability Class [Axis]", "documentation": "Information by class of liability." } } }, "auth_ref": [ "r606", "r607", "r608", "r609", "r610", "r611", "r616" ] }, "us-gaap_FairValueByMeasurementBasisAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueByMeasurementBasisAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Measurement Basis [Axis]", "terseLabel": "Measurement Basis [Axis]", "documentation": "Information by measurement basis." } } }, "auth_ref": [ "r380", "r626", "r628", "r629", "r631", "r633", "r634", "r892", "r945", "r946", "r1272" ] }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueByMeasurementFrequencyAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Measurement Frequency [Axis]", "terseLabel": "Measurement Frequency [Axis]", "documentation": "Information by measurement frequency." } } }, "auth_ref": [ "r601", "r602", "r603", "r605", "r984", "r1265", "r1268" ] }, "us-gaap_FairValueDisclosureItemAmountsDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueDisclosureItemAmountsDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value Measurement [Domain]", "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value." } } }, "auth_ref": [ "r380", "r945", "r946" ] }, "us-gaap_FairValueDisclosuresAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueDisclosuresAbstract", "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Abstract]" } } }, "auth_ref": [] }, "us-gaap_FairValueDisclosuresTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueDisclosuresTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosures" ], "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Text Block]", "terseLabel": "Fair Value Disclosures", "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information." } } }, "auth_ref": [ "r603", "r610", "r612", "r613", "r614", "r617", "r618", "r619", "r620", "r621", "r723", "r984", "r988" ] }, "ffin_FairValueInputsLevel1AndLevel2Member": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FairValueInputsLevel1AndLevel2Member", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "documentation": "Fair value inputs level 1 and level 2.", "label": "Fair Value Inputs Level 1 And Level 2 [Member]", "terseLabel": "Levels 1 and 2 Inputs [Member]" } } }, "auth_ref": [] }, "us-gaap_FairValueInputsLevel1Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueInputsLevel1Member", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Inputs, Level 1 [Member]", "terseLabel": "Level 1 Inputs [Member]", "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date." } } }, "auth_ref": [ "r380", "r395", "r400", "r402", "r602", "r615", "r626", "r657", "r892", "r951", "r952", "r953", "r954", "r955", "r984", "r994" ] }, "us-gaap_FairValueInputsLevel2Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueInputsLevel2Member", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Inputs, Level 2 [Member]", "terseLabel": "Level 2 Inputs [Member]", "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets." } } }, "auth_ref": [ "r380", "r395", "r400", "r402", "r404", "r602", "r603", "r615", "r626", "r658", "r892", "r945", "r946", "r951", "r952", "r953", "r954", "r955", "r984", "r994" ] }, "us-gaap_FairValueInputsLevel3Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueInputsLevel3Member", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Inputs, Level 3 [Member]", "terseLabel": "Level 3 Inputs [Member]", "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing." } } }, "auth_ref": [ "r380", "r395", "r396", "r397", "r398", "r399", "r400", "r402", "r403", "r602", "r603", "r604", "r605", "r615", "r626", "r659", "r892", "r945", "r946", "r951", "r952", "r953", "r954", "r955", "r984", "r987", "r994" ] }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value by Liability Class [Domain]", "documentation": "Represents classes of liabilities measured and disclosed at fair value." } } }, "auth_ref": [ "r606", "r607", "r608", "r609", "r610", "r611", "r616" ] }, "us-gaap_FairValueMeasurementFrequencyDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueMeasurementFrequencyDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Measurement Frequency [Domain]", "terseLabel": "Fair Value, Measurement Frequency [Domain]", "documentation": "Measurement frequency." } } }, "auth_ref": [ "r601", "r602", "r603", "r605", "r984", "r1265", "r1268" ] }, "ffin_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel2", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Fair value measurement with unobservable inputs reconciliation recurring basis asset transfers into level 2.", "label": "Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level 2", "terseLabel": "Assets transfer between Level 2 and Level 3" } } }, "auth_ref": [] }, "ffin_FairValueMeasurementWithUnobservantInputsReconciliationRecurringBasisAssetTransfersIntoLevelTwo": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FairValueMeasurementWithUnobservantInputsReconciliationRecurringBasisAssetTransfersIntoLevelTwo", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Assets transfer between Level 2 and Level 3", "label": "Fair value measurement with unobservant inputs reconciliation recurring basis asset transfers into level two", "documentation": "Fair value measurement with unobservable inputs reconciliation recurring basis asset transfers into level 2." } } }, "auth_ref": [] }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueMeasurementsFairValueHierarchyDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value Hierarchy and NAV [Domain]", "terseLabel": "Fair Value Hierarchy and NAV [Domain]", "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value." } } }, "auth_ref": [ "r380", "r395", "r396", "r397", "r398", "r399", "r400", "r402", "r403", "r600", "r602", "r603", "r604", "r605", "r614", "r615", "r617", "r626", "r657", "r658", "r659", "r892", "r945", "r946", "r951", "r952", "r953", "r954", "r955", "r984", "r987", "r994" ] }, "ffin_FairValueMeasurementsLoansHeldForSaleAbstract": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FairValueMeasurementsLoansHeldForSaleAbstract", "lang": { "en-us": { "role": { "documentation": "Fair value measurements ,loans held-for-sale.", "label": "Fair Value Measurements Loans Held For Sale [Abstract]" } } }, "auth_ref": [] }, "ffin_FairValueMeasurementsLoansHeldForSaleTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FairValueMeasurementsLoansHeldForSaleTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresTables" ], "lang": { "en-us": { "role": { "terseLabel": "Summary of Loans Held-for-Sale at Fair Value", "documentation": "Fair value measurements ,loans held-for-sale.", "label": "Fair Value Measurements Loans Held For Sale [Table Text Block]" } } }, "auth_ref": [] }, "us-gaap_FairValueMeasurementsRecurringMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FairValueMeasurementsRecurringMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Recurring [Member]", "terseLabel": "Fair Value, Measurements, Recurring [Member]", "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value." } } }, "auth_ref": [ "r984", "r1262", "r1263", "r1264", "r1265", "r1266", "r1268" ] }, "ffin_FarmMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FarmMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Farm [Member]", "terseLabel": "Farm [Member]", "documentation": "Farm." } } }, "auth_ref": [] }, "us-gaap_FederalDepositInsuranceCorporationPremiumExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FederalDepositInsuranceCorporationPremiumExpense", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Federal Deposit Insurance Corporation Premium Expense", "terseLabel": "FDIC insurance premiums", "documentation": "Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance." } } }, "auth_ref": [ "r91" ] }, "us-gaap_FederalFundsPurchased": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FederalFundsPurchased", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsScheduleOfBorrowingsDetail" ], "lang": { "en-us": { "role": { "label": "Federal Funds Purchased", "terseLabel": "Federal funds purchased", "documentation": "Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank." } } }, "auth_ref": [ "r77" ] }, "us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member]", "terseLabel": "Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member]", "documentation": "Short term borrowing where a bank borrows, at the federal funds rate, from another bank and securities that an entity sells and agrees to repurchase at a specified date for a specified price." } } }, "auth_ref": [ "r77" ] }, "us-gaap_FederalFundsSold": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FederalFundsSold", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_CashCashEquivalentsAndFederalFundsSold", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "FEDERAL FUNDS SOLD", "terseLabel": "FEDERAL FUNDS SOLD", "documentation": "The amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements." } } }, "auth_ref": [ "r85" ] }, "us-gaap_FederalHomeLoanBankBorrowingsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FederalHomeLoanBankBorrowingsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Federal Home Loan Bank Borrowings [Member]", "label": "Federal Home Loan Bank Borrowings [Member]", "documentation": "This item represents the amount that a bank with insufficient reserves borrows, from the Federal Home Loan Bank [system], to meet its reserve requirements." } } }, "auth_ref": [] }, "ffin_FederalReserveDiscountWindowMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FederalReserveDiscountWindowMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Federal Reserve Discount Window [Member]", "documentation": "Federal Reserve Discount Window [Member]", "terseLabel": "Federal Reserve Discount Window [Member]" } } }, "auth_ref": [] }, "us-gaap_FinancialAssetNotPastDueMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancialAssetNotPastDueMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Current [Member]", "label": "Financial Asset, Not Past Due [Member]", "documentation": "Financial asset not past due." } } }, "auth_ref": [ "r333", "r942" ] }, "us-gaap_FinancialAssetPastDueMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancialAssetPastDueMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Total Past Due [Member]", "label": "Financial Asset, Past Due [Member]", "documentation": "Financial asset past due." } } }, "auth_ref": [ "r118", "r333", "r942" ] }, "us-gaap_FinancialInstrumentAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancialInstrumentAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Financial Instrument [Axis]", "terseLabel": "Financial Instrument [Axis]", "documentation": "Information by type of financial instrument." } } }, "auth_ref": [ "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298", "r299", "r300", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r311", "r312", "r313", "r314", "r315", "r316", "r324", "r326", "r333", "r334", "r337", "r341", "r346", "r347", "r381", "r392", "r584", "r596", "r622", "r632", "r635", "r654", "r655", "r656", "r657", "r658", "r659", "r660", "r661", "r662", "r663", "r664", "r665", "r666", "r667", "r670", "r672", "r673", "r674", "r675", "r676", "r677", "r678", "r679", "r680", "r681", "r682", "r683", "r684", "r685", "r686", "r744", "r763", "r943", "r984", "r986", "r987", "r988", "r989", "r990", "r991", "r992", "r993", "r996", "r1114", "r1115", "r1116", "r1117", "r1118", "r1119", "r1120", "r1179", "r1180", "r1181", "r1182", "r1261", "r1264", "r1265", "r1266", "r1267", "r1268", "r1269", "r1270" ] }, "ffin_FinancialInstrumentsRepurchaseAgreements": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FinancialInstrumentsRepurchaseAgreements", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Financial Instruments Repurchase Agreements", "documentation": "Financial Instruments Repurchase Agreements", "terseLabel": "Repurchase Agreements" } } }, "auth_ref": [] }, "us-gaap_FinancingReceivableAllowanceForCreditLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableAllowanceForCreditLosses", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "periodEndLabel": "Financing Receivable, Allowance for Credit Loss, Ending Balance", "periodStartLabel": "Financing Receivable, Allowance for Credit Loss, Beginning Balance", "label": "Financing Receivable, Allowance for Credit Loss", "terseLabel": "Recognized credit losses", "documentation": "Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement." } } }, "auth_ref": [ "r102", "r141", "r143", "r145", "r180", "r322", "r327", "r332", "r1287" ] }, "us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableAllowanceForCreditLossesLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Allowance for Credit Loss [Line Items]", "terseLabel": "Financing Receivable, Allowance for Credit Losses [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r145", "r327", "r328", "r329", "r330", "r331", "r332" ] }, "ffin_FinancingReceivableCollateralDependentWithAllowance": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FinancingReceivableCollateralDependentWithAllowance", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable Collateral Dependent With Allowance", "documentation": "Financing Receivable Collateral Dependent With Allowance", "terseLabel": "Collateral Dependent Loans Individually Evaluated for Credit Losses With an Allowance" } } }, "auth_ref": [] }, "ffin_FinancingReceivableCollateralDependentWithoutAllowance": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FinancingReceivableCollateralDependentWithoutAllowance", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Collateral Dependent Loans Individually Evaluated for Credit Losses Without an Allowance", "label": "Financing Receivable Collateral Dependent Without Allowance", "documentation": "Financing Receivable Collateral Dependent Without Allowance" } } }, "auth_ref": [] }, "us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableCreditQualityIndicatorsTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "label": "Financing Receivable Credit Quality Indicators [Table Text Block]", "terseLabel": "Schedule of Internal Ratings of Loans", "documentation": "Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics." } } }, "auth_ref": [ "r1195" ] }, "us-gaap_FinancingReceivableImpairedLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableImpairedLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Impaired [Line Items]", "terseLabel": "Financing Receivable, Impaired [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [] }, "us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableIndividuallyEvaluatedForImpairment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Loans individually evaluated for credit losses", "label": "Financing Receivable, Individually Evaluated for Credit Loss", "totalLabel": "Financing Receivable, Individually Evaluated for Credit Loss, Total", "verboseLabel": "Total Loans Individually Evaluated for Credit Losses", "documentation": "Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss." } } }, "auth_ref": [ "r280", "r920" ] }, "us-gaap_FinancingReceivableIndividuallyEvaluatedWithAllowanceForCreditLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableIndividuallyEvaluatedWithAllowanceForCreditLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Individually Evaluated, with Allowance for Credit Loss", "terseLabel": "Total Loans Individually Evaluated for Credit Losses", "documentation": "Amount of financing receivable with allowance for credit loss evaluated on individual basis. Excludes financing receivable evaluated on collective basis." } } }, "auth_ref": [ "r1184" ] }, "us-gaap_FinancingReceivableIndividuallyEvaluatedWithoutAllowanceForCreditLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableIndividuallyEvaluatedWithoutAllowanceForCreditLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Individually Evaluated, without Allowance for Credit Loss", "terseLabel": "Collateral Dependent Loans Individually Evaluated for Credit Losses Without an Allowance", "documentation": "Amount of financing receivable without allowance for credit loss evaluated on individual basis. Excludes financing receivable evaluated on collective basis." } } }, "auth_ref": [ "r1184" ] }, "us-gaap_FinancingReceivableModificationsLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableModificationsLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Modified [Line Items]", "terseLabel": "Financing Receivable, Modifications [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r113", "r114", "r281", "r282", "r919" ] }, "us-gaap_FinancingReceivableModificationsNumberOfContracts2": { "xbrltype": "integerItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableModificationsNumberOfContracts2", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Modifications, Number of Contracts", "terseLabel": "Number", "documentation": "Number of financing receivables that have been modified by troubled debt restructurings." } } }, "auth_ref": [ "r113" ] }, "us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableModificationsPostModificationRecordedInvestment2", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Modified in Period, Amount", "terseLabel": "Post-Modification Recorded Investment", "documentation": "Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty." } } }, "auth_ref": [ "r113", "r281", "r919" ] }, "us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableModificationsPreModificationRecordedInvestment2", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Troubled Debt Restructuring, Premodification", "terseLabel": "Pre-Modification Recorded Investment", "verboseLabel": "Troubled Debt Restructured Loans", "documentation": "Amount, before troubled debt restructuring, of financing receivable to be modified." } } }, "auth_ref": [ "r113" ] }, "us-gaap_FinancingReceivableModificationsRecordedInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableModificationsRecordedInvestment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfDebtRestructuredLoansStillAccruingForCreditLossesParentheticalDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Modified, Accumulated", "terseLabel": "Troubled debt restructured loans still accruing", "documentation": "Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty." } } }, "auth_ref": [ "r113", "r120", "r1163" ] }, "ffin_FinancingReceivableNonAccrualLoansWithoutSpecificAllowanceForCreditLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FinancingReceivableNonAccrualLoansWithoutSpecificAllowanceForCreditLosses", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D" ], "lang": { "en-us": { "role": { "terseLabel": "Non-accrual loans without a specific ACL", "label": "Financing Receivable Non Accrual Loans Without Specific Allowance For Credit Losses", "documentation": "Financing Receivable Non Accrual Loans Without Specific Allowance For Credit Losses" } } }, "auth_ref": [] }, "us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Originated, More than Five Years before Current Fiscal Year", "terseLabel": "Prior", "documentation": "Amortized cost of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease." } } }, "auth_ref": [ "r339", "r941" ] }, "ffin_FinancingReceivableOriginatedFiveYearsBeforeLatestFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FinancingReceivableOriginatedFiveYearsBeforeLatestFiscalYear", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable Originated Five Years Before Latest Fiscal Year", "documentation": "Financing Receivable Originated Five Years Before Latest Fiscal Year", "terseLabel": "2021" } } }, "auth_ref": [] }, "us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year", "verboseLabel": "2021", "terseLabel": "2022", "documentation": "Amortized cost of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease." } } }, "auth_ref": [ "r339", "r941" ] }, "us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableOriginatedInCurrentFiscalYear", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Year One, Originated, Current Fiscal Year", "verboseLabel": "2025", "terseLabel": "2026", "documentation": "Amortized cost of financing receivable originated in current fiscal year. Excludes net investment in lease." } } }, "auth_ref": [ "r339", "r941" ] }, "us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year", "verboseLabel": "2024", "terseLabel": "2025", "documentation": "Amortized cost of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease." } } }, "auth_ref": [ "r339", "r941" ] }, "us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year", "verboseLabel": "2022", "terseLabel": "2023", "documentation": "Amortized cost of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease." } } }, "auth_ref": [ "r339", "r941" ] }, "us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year", "verboseLabel": "2023", "terseLabel": "2024", "documentation": "Amortized cost of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease." } } }, "auth_ref": [ "r339", "r941" ] }, "us-gaap_FinancingReceivablePortfolioSegmentAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivablePortfolioSegmentAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Financing Receivable Portfolio Segment [Axis]", "terseLabel": "Financing Receivable Portfolio Segment [Axis]", "documentation": "Information by the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses." } } }, "auth_ref": [ "r139", "r140", "r144", "r145", "r324", "r327", "r328", "r329", "r330", "r331", "r332", "r921", "r1114", "r1115", "r1116", "r1117", "r1118", "r1119", "r1120", "r1122", "r1123", "r1124" ] }, "us-gaap_FinancingReceivablePortfolioSegmentDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivablePortfolioSegmentDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Financing Receivable Portfolio Segment [Domain]", "terseLabel": "Financing Receivable Portfolio Segment [Domain]", "documentation": "Level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses." } } }, "auth_ref": [ "r139", "r140", "r144", "r145", "r327", "r328", "r329", "r330", "r331", "r332", "r1114", "r1115", "r1116", "r1117", "r1118", "r1119", "r1120", "r1122", "r1123", "r1124" ] }, "us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D": { "parentTag": "us-gaap_NotesReceivableNet", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, 90 Days or More Past Due, Still Accruing", "verboseLabel": "Total 90 Days Past Due Still Accruing", "terseLabel": "Accruing loans past due more than 90 days", "documentation": "Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease." } } }, "auth_ref": [ "r117", "r336", "r942" ] }, "us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Class of Financing Receivable [Axis]", "documentation": "Information by class of financing receivable determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk." } } }, "auth_ref": [ "r111", "r115", "r118", "r119", "r139", "r140", "r144", "r145", "r277", "r281", "r282", "r283", "r284", "r333", "r334", "r337", "r919", "r925", "r926", "r927", "r928", "r941", "r942", "r1114", "r1115", "r1116", "r1117", "r1118", "r1119", "r1120", "r1122", "r1123", "r1124", "r1165" ] }, "us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Class of Financing Receivable [Domain]", "documentation": "Financing receivables determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk." } } }, "auth_ref": [ "r119", "r139", "r140", "r144", "r145", "r277", "r281", "r282", "r283", "r284", "r919", "r925", "r926", "r927", "r928", "r1114", "r1115", "r1116", "r1117", "r1118", "r1119", "r1120", "r1122", "r1123", "r1124", "r1165" ] }, "us-gaap_FinancingReceivableRecordedInvestmentLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableRecordedInvestmentLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Credit Quality Indicator [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r111", "r922", "r923", "r924", "r925", "r926", "r927", "r928", "r929", "r930", "r931", "r932", "r933", "r934", "r935", "r936", "r937", "r938", "r939", "r940", "r941", "r1196", "r1198" ] }, "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableRecordedInvestmentNonaccrualStatus", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D": { "parentTag": "us-gaap_NotesReceivableNet", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Nonaccrual", "terseLabel": "Non-accrual", "documentation": "Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease." } } }, "auth_ref": [ "r116", "r142", "r143", "r335" ] }, "us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableRecordedInvestmentPastDueLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Past Due [Line Items]", "terseLabel": "Financing Receivable, Recorded Investment, Past Due [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r922", "r923", "r924", "r925", "r926", "r927", "r928", "r929", "r930", "r931", "r932", "r933", "r934", "r935", "r936", "r942", "r1194" ] }, "us-gaap_FinancingReceivableRevolving": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivableRevolving", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "terseLabel": "Revolving Loans Amortized Cost Basis", "label": "Financing Receivable, Revolving", "documentation": "Amortized cost of financing receivable that can be withdrawn, repaid, and redrawn." } } }, "auth_ref": [ "r339", "r941" ] }, "ffin_FinancingReceivables15To59DaysPastDueMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FinancingReceivables15To59DaysPastDueMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivables, 15 to 59 Days Past Due [Member]", "terseLabel": "15-59 Days Past Due [Member]", "documentation": "Financing receivables, 15 to 59 days past due." } } }, "auth_ref": [] }, "us-gaap_FinancingReceivables60To89DaysPastDueMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivables60To89DaysPastDueMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "label": "Financial Asset, 60 to 89 Days Past Due [Member]", "terseLabel": "60-89 Days Past Due [Member]", "documentation": "Financial asset more than 59 days past due but fewer than 90 days past due." } } }, "auth_ref": [ "r942" ] }, "us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivablesEqualToGreaterThan90DaysPastDueMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Financial Asset, Equal to or Greater than 90 Days Past Due [Member]", "terseLabel": "Greater than 90 Days [Member]", "documentation": "Financial asset equal to or greater than 90 days past due." } } }, "auth_ref": [ "r942" ] }, "us-gaap_FinancingReceivablesPeriodPastDueAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivablesPeriodPastDueAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Financial Asset, Aging [Axis]", "terseLabel": "Financing Receivables, Period Past Due [Axis]", "documentation": "Information by period in which financial asset is past due or not past due." } } }, "auth_ref": [ "r118", "r333", "r942" ] }, "us-gaap_FinancingReceivablesPeriodPastDueDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancingReceivablesPeriodPastDueDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Financial Asset, Aging [Domain]", "terseLabel": "Financing Receivables, Period Past Due [Domain]", "documentation": "Period in which financial asset is past due or not past due. For past due, element name and standard label in Financial Asset, [numeric lower end] to [numeric higher end] [date measure] Past Due [Member] or Financial Asset, Greater than [low end numeric value] [date measure] Past Due [Member] or Financial Asset, Less than [high end numeric value] [date measure] Past Due [Member] formats." } } }, "auth_ref": [ "r118", "r333", "r942" ] }, "us-gaap_FiniteLivedIntangibleAssetUsefulLife": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FiniteLivedIntangibleAssetUsefulLife", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Finite-Lived Intangible Asset, Useful Life", "terseLabel": "Other identifiable intangible assets, amortized period (years)", "documentation": "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days." } } }, "auth_ref": [] }, "us-gaap_ForeclosedAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ForeclosedAssets", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Repossessed Assets, Total", "label": "Repossessed Assets", "terseLabel": "Other real estate owned, total", "documentation": "Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts." } } }, "auth_ref": [ "r278", "r279" ] }, "ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Forgone Recovery due to Disqualification of Tax Benefits, Amount", "terseLabel": "Forgone Recovery due to Disqualification of Tax Benefits, Amount" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1090" ] }, "ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ForgoneRecoveryDueToExpenseOfEnforcementAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Forgone Recovery due to Expense of Enforcement, Amount", "terseLabel": "Forgone Recovery due to Expense of Enforcement, Amount" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1090" ] }, "ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ForgoneRecoveryDueToViolationOfHomeCountryLawAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Forgone Recovery due to Violation of Home Country Law, Amount", "terseLabel": "Forgone Recovery due to Violation of Home Country Law, Amount" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1090" ] }, "ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ForgoneRecoveryExplanationOfImpracticabilityTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Forgone Recovery, Explanation of Impracticability [Text Block]", "terseLabel": "Forgone Recovery, Explanation of Impracticability" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1090" ] }, "ecd_ForgoneRecoveryIndName": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "ForgoneRecoveryIndName", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Forgone Recovery, Individual Name", "terseLabel": "Name" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1090" ] }, "ffin_ForwardMortgageBackedSecuritiesTradesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ForwardMortgageBackedSecuritiesTradesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Forward Mortgage-Backed Securities Trades [Member]", "documentation": "Forward mortgage-backed securities trades.", "label": "Forward Mortgage Backed Securities Trades [Member]" } } }, "auth_ref": [] }, "ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]", "terseLabel": "Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year" } } }, "auth_ref": [ "r1071" ] }, "ffin_FundedCommitment": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "FundedCommitment", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Funded Commitment", "documentation": "Funded Commitment", "terseLabel": "Funded Commitment" } } }, "auth_ref": [] }, "us-gaap_GainLossOnDispositionOfAssets1": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "GainLossOnDispositionOfAssets1", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 6.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "verboseLabel": "Net gain on sale of other assets", "totalLabel": "Gain (Loss) on Disposition of Assets, Total", "label": "Gain (Loss) on Disposition of Assets", "documentation": "Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee." } } }, "auth_ref": [ "r1135" ] }, "us-gaap_GainLossOnSaleOfMortgageLoans": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "GainLossOnSaleOfMortgageLoans", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail" ], "lang": { "en-us": { "role": { "label": "Gain (Loss) on Sale of Mortgage Loans", "totalLabel": "Total gain on sale of mortgage loans", "negatedLabel": "Net gain on mortgage loans held for sale", "documentation": "The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method." } } }, "auth_ref": [ "r5", "r128", "r130", "r133" ] }, "us-gaap_GainsLossesOnSalesOfAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "GainsLossesOnSalesOfAssets", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 14.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Gain (Loss) on Disposition of Assets for Financial Service Operations, Total", "label": "Gain (Loss) on Disposition of Assets for Financial Service Operations", "negatedLabel": "Loss on sale of other real estate owned", "documentation": "Amount of gain (loss) on sale or disposal of assets utilized in financial service operations." } } }, "auth_ref": [] }, "us-gaap_GeographicConcentrationRiskMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "GeographicConcentrationRiskMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Geographic Concentration Risk [Member]", "terseLabel": "Geographic Concentration Risk [Member]", "documentation": "Reflects the percentage that a specified dollar value on the balance sheet or income statement in the period from one or more specified geographic areas is to a corresponding consolidated, segment, or product line amount. Risk is the materially adverse effects of economic decline or antagonistic political actions resulting in loss of assets, sales volume, labor supply, or source of materials and supplies in a US state or a specified country, continent, or region such as EMEA (Europe, Middle East, Africa)." } } }, "auth_ref": [ "r877", "r1155" ] }, "us-gaap_Goodwill": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "Goodwill", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Goodwill resulting from acquisition", "periodEndLabel": "Goodwill, Ending Balance", "periodStartLabel": "Goodwill, Beginning Balance", "totalLabel": "Goodwill, Total", "label": "Goodwill", "documentation": "Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized." } } }, "auth_ref": [ "r175", "r350", "r724", "r917", "r944", "r962", "r966", "r967", "r975", "r985", "r995", "r1201", "r1202", "r1253" ] }, "us-gaap_GoodwillImpairmentLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "GoodwillImpairmentLoss", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Goodwill, Impairment Loss", "terseLabel": "Impairment recorded", "documentation": "Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized." } } }, "auth_ref": [ "r5", "r351", "r352", "r353", "r355", "r536", "r944", "r985" ] }, "us-gaap_HeldToMaturitySecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "HeldToMaturitySecurities", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Securities held to maturity", "totalLabel": "Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Total", "label": "Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss", "documentation": "Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity)." } } }, "auth_ref": [ "r118", "r300", "r333", "r624", "r1185" ] }, "us-gaap_HeldtomaturitySecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "HeldtomaturitySecuritiesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Held-to-Maturity Securities [Member]", "terseLabel": "Held-to-maturity Securities [Member]", "documentation": "Investments in debt securities classified as held-to-maturity." } } }, "auth_ref": [ "r126" ] }, "us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ImpairedFinancingReceivableAverageRecordedInvestment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Impaired Financing Receivable, Average Recorded Investment, Total", "label": "Impaired Financing Receivable, Average Recorded Investment", "terseLabel": "Average Recorded Investment", "documentation": "Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses." } } }, "auth_ref": [ "r108", "r109" ] }, "us-gaap_ImpairedFinancingReceivableRecordedInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ImpairedFinancingReceivableRecordedInvestment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Impaired Financing Receivable, Recorded Investment", "totalLabel": "Total Recorded Investment", "documentation": "Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses." } } }, "auth_ref": [ "r104" ] }, "us-gaap_ImpairedFinancingReceivableRelatedAllowance": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ImpairedFinancingReceivableRelatedAllowance", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Related Allowance", "label": "Impaired Financing Receivable, Related Allowance", "documentation": "Amount of allowance for credit losses related to recorded investment." } } }, "auth_ref": [ "r106" ] }, "us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ImpairedFinancingReceivableUnpaidPrincipalBalance", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Impaired Financing Receivable, Unpaid Principal Balance", "totalLabel": "Impaired Financing Receivable, Unpaid Principal Balance, Total", "documentation": "Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses." } } }, "auth_ref": [ "r107" ] }, "ffin_ImpairedFinancingReceivableWithARelatedAllowance": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ImpairedFinancingReceivableWithARelatedAllowance", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Related Allowance", "label": "Impaired Financing Receivable with a Related Allowance", "documentation": "Impaired financing receivable with a related allowance" } } }, "auth_ref": [] }, "ffin_ImpairedFinancingReceivableWithARelatedAllowanceRecordedInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ImpairedFinancingReceivableWithARelatedAllowanceRecordedInvestment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Impaired Financing Receivable With a Related Allowance Recorded Investment", "terseLabel": "Recorded Investment With Allowance", "documentation": "Impaired financing receivable with a related allowance recorded investment" } } }, "auth_ref": [] }, "us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Recorded Investment With No Allowance", "label": "Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment", "documentation": "Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses." } } }, "auth_ref": [ "r108", "r109" ] }, "us-gaap_ImpairedFinancingReceivablesTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ImpairedFinancingReceivablesTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "label": "Impaired Financing Receivables [Table Text Block]", "terseLabel": "Schedule of loans that are individually evaluated for credit losses", "documentation": "Tabular disclosure of impaired financing receivables." } } }, "auth_ref": [ "r105" ] }, "ffin_ImpairedFinancingReceivabletabletextblock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ImpairedFinancingReceivabletabletextblock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of loans that are individually evaluated for credit losses", "label": "Impaired Financing ReceivableTableTextBlock", "documentation": "Impaired Financing ReceivableTableTextBlock" } } }, "auth_ref": [] }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest", "totalLabel": "EARNINGS BEFORE INCOME TAXES", "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest." } } }, "auth_ref": [ "r59", "r92", "r99", "r734", "r736", "r759", "r901", "r903", "r905", "r913", "r916", "r1150", "r1156", "r1157", "r1158", "r1159" ] }, "us-gaap_IncomeStatementAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncomeStatementAbstract", "lang": { "en-us": { "role": { "label": "Income Statement [Abstract]" } } }, "auth_ref": [] }, "us-gaap_IncomeTaxDisclosureAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncomeTaxDisclosureAbstract", "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Abstract]" } } }, "auth_ref": [] }, "us-gaap_IncomeTaxDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncomeTaxDisclosureTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxes" ], "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Text Block]", "terseLabel": "Income Taxes", "documentation": "The entire disclosure for income tax." } } }, "auth_ref": [ "r211", "r215", "r447", "r451", "r452", "r453", "r454", "r455", "r458", "r463", "r465", "r468", "r469", "r743", "r778", "r790", "r961" ] }, "us-gaap_IncomeTaxExpenseBenefit": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncomeTaxExpenseBenefit", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Income Tax Expense (Benefit), Total", "label": "Income Tax Expense (Benefit)", "terseLabel": "INCOME TAX EXPENSE", "verboseLabel": "Income tax expense", "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations." } } }, "auth_ref": [ "r131", "r136", "r211", "r234", "r235", "r252", "r262", "r271", "r450", "r451", "r464", "r768", "r901", "r903", "r905", "r961" ] }, "us-gaap_IncomeTaxPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncomeTaxPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Income Tax, Policy [Policy Text Block]", "terseLabel": "Income Taxes", "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements." } } }, "auth_ref": [ "r191", "r448", "r449", "r455", "r456", "r457", "r459", "r786" ] }, "ffin_IncomeTaxesLineItems": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "IncomeTaxesLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Income Taxes [Line Items]", "label": "Income Taxes [Line Items]", "terseLabel": "Income Taxes [Line Items]" } } }, "auth_ref": [] }, "us-gaap_IncomeTaxesPaid": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncomeTaxesPaid", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Income Taxes Paid", "terseLabel": "Taxes paid", "documentation": "Amount, before refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax." } } }, "auth_ref": [ "r24", "r66", "r1136", "r1244", "r1245" ] }, "ffin_IncomeTaxesTable": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "IncomeTaxesTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Income Taxes [Table]", "terseLabel": "Income Taxes [Table]", "documentation": "Income Taxes [Table]" } } }, "auth_ref": [] }, "us-gaap_IncreaseDecreaseInLoansHeldForSale": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncreaseDecreaseInLoansHeldForSale", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 7.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Loan, Held-for-Sale", "negatedLabel": "Change in loans held-for-sale", "documentation": "Amount of increase (decrease) in value of loan held with intention to sell or be securitized in near future." } } }, "auth_ref": [ "r132", "r1134" ] }, "us-gaap_IncreaseDecreaseInOtherOperatingAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncreaseDecreaseInOtherOperatingAssets", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 20.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Increase (Decrease) in Other Operating Assets, Total", "label": "Increase (Decrease) in Other Operating Assets", "terseLabel": "Change in other assets", "negatedLabel": "Change in other assets", "documentation": "Amount of increase (decrease) in operating assets classified as other." } } }, "auth_ref": [ "r4" ] }, "us-gaap_IncreaseDecreaseInOtherOperatingLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IncreaseDecreaseInOtherOperatingLiabilities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 21.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Increase (Decrease) in Other Operating Liabilities, Total", "label": "Increase (Decrease) in Other Operating Liabilities", "terseLabel": "Change in other liabilities", "documentation": "Amount of increase (decrease) in operating liabilities classified as other." } } }, "auth_ref": [ "r4" ] }, "ecd_IndividualAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "IndividualAxis", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure", "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure", "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements", "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Individual [Axis]", "terseLabel": "Individual:" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1082", "r1090", "r1094", "r1102" ] }, "us-gaap_InformationByCategoryOfDebtSecurityAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InformationByCategoryOfDebtSecurityAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Debt Security Category [Axis]", "documentation": "Information by category of debt security, either available-for-sale or held-to-maturity." } } }, "auth_ref": [] }, "ecd_InsiderTradingArrLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "InsiderTradingArrLineItems", "lang": { "en-us": { "role": { "label": "Insider Trading Arrangements [Line Items]", "terseLabel": "Insider Trading Arrangements:" } } }, "auth_ref": [ "r1100" ] }, "ecd_InsiderTradingPoliciesProcLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "InsiderTradingPoliciesProcLineItems", "lang": { "en-us": { "role": { "label": "Insider Trading Policies and Procedures [Line Items]", "terseLabel": "Insider Trading Policies and Procedures:" } } }, "auth_ref": [ "r1030", "r1106" ] }, "ecd_InsiderTrdPoliciesProcAdoptedFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "InsiderTrdPoliciesProcAdoptedFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" ], "lang": { "en-us": { "role": { "label": "Insider Trading Policies and Procedures Adopted [Flag]", "terseLabel": "Insider Trading Policies and Procedures Adopted" } } }, "auth_ref": [ "r1030", "r1106" ] }, "ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "InsiderTrdPoliciesProcNotAdoptedTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" ], "lang": { "en-us": { "role": { "label": "Insider Trading Policies and Procedures Not Adopted [Text Block]", "terseLabel": "Insider Trading Policies and Procedures Not Adopted" } } }, "auth_ref": [ "r1030", "r1106" ] }, "us-gaap_IntangibleAssetsNetIncludingGoodwill": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "IntangibleAssetsNetIncludingGoodwill", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 5.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Intangible Assets, Net (Including Goodwill)", "terseLabel": "INTANGIBLE ASSETS, net", "totalLabel": "Intangible Assets, Net (Including Goodwill), Total", "documentation": "Amount, after impairment and amortization, of goodwill, indefinite-lived, and finite-lived intangible assets." } } }, "auth_ref": [ "r1200" ] }, "us-gaap_InterestAndDividendIncomeOperating": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestAndDividendIncomeOperating", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestIncomeExpenseNet", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest and Dividend Income, Operating", "totalLabel": "Total interest income", "documentation": "Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein." } } }, "auth_ref": [ "r86", "r93", "r95", "r96", "r97", "r903", "r1336" ] }, "us-gaap_InterestAndDividendIncomeOperatingAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestAndDividendIncomeOperatingAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest and Dividend Income, Operating [Abstract]", "terseLabel": "INTEREST INCOME:" } } }, "auth_ref": [] }, "us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest and Dividend Income, Securities, by Taxable Status [Abstract]", "terseLabel": "Interest on investment securities:" } } }, "auth_ref": [] }, "us-gaap_InterestAndFeeIncomeLoansAndLeases": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestAndFeeIncomeLoansAndLeases", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Interest and Fee Income, Loans and Leases, Total", "label": "Interest and Fee Income, Loans and Leases", "terseLabel": "Interest and fees on loans", "documentation": "The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases." } } }, "auth_ref": [ "r86", "r903" ] }, "us-gaap_InterestAndFeeIncomeLoansCommercial": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestAndFeeIncomeLoansCommercial", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Interest and Fee Income, Loans, Commercial", "totalLabel": "Interest and Fee Income, Loans, Commercial, Total", "documentation": "Interest and fee income related to commercial loans including industrial and agricultural, real estate (commercial and residential, construction and development), trade financing, and lease financing." } } }, "auth_ref": [ "r86" ] }, "us-gaap_InterestBearingDepositLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestBearingDepositLiabilities", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Deposits", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest-Bearing Deposit Liabilities", "terseLabel": "INTEREST-BEARING DEPOSITS", "totalLabel": "Interest-bearing Deposit Liabilities, Total", "documentation": "The aggregate of all domestic and foreign interest-bearing deposit liabilities." } } }, "auth_ref": [ "r76" ] }, "us-gaap_InterestBearingDepositsInBanks": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestBearingDepositsInBanks", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_CashCashEquivalentsAndFederalFundsSold", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest-Bearing Deposits in Banks and Other Financial Institutions", "terseLabel": "INTEREST-BEARING DEMAND DEPOSITS IN BANKS", "documentation": "For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet." } } }, "auth_ref": [ "r37", "r83" ] }, "ffin_InterestBearingTimeDepositsInBanksAndSecuritiesLineItems": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "InterestBearingTimeDepositsInBanksAndSecuritiesLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Interest Bearing Time Deposits In Banks And Securities [Line Items]", "label": "Interest Bearing Time Deposits In Banks And Securities [Line Items]", "terseLabel": "Interest Bearing Time Deposits In Banks And Securities [Line Items]" } } }, "auth_ref": [] }, "ffin_InterestBearingTimeDepositsInBanksAndSecuritiesTable": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "InterestBearingTimeDepositsInBanksAndSecuritiesTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Interest Bearing Time Deposits In Banks And Securities [Table]", "label": "Interest Bearing Time Deposits In Banks And Securities [Table]", "terseLabel": "Interest Bearing Time Deposits In Banks And Securities [Table]" } } }, "auth_ref": [] }, "us-gaap_InterestExpenseAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestExpenseAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest Expense, Operating and Nonoperating [Abstract]", "terseLabel": "INTEREST EXPENSE:" } } }, "auth_ref": [] }, "us-gaap_InterestExpenseDeposits": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestExpenseDeposits", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestExpenseOperating", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest Expense, Deposits", "terseLabel": "Interest on deposits", "totalLabel": "Interest Expense, Deposits, Total", "documentation": "Aggregate amount of interest expense on all deposits." } } }, "auth_ref": [ "r98", "r903" ] }, "us-gaap_InterestExpenseOperating": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestExpenseOperating", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestIncomeExpenseNet", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest Expense, Operating", "totalLabel": "Total interest expense", "documentation": "Amount of interest expense classified as operating." } } }, "auth_ref": [ "r261", "r732", "r903", "r1132" ] }, "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestIncomeExpenseAfterProvisionForLoanLoss", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Net interest income after provision for credit losses", "label": "Interest Income (Expense), after Provision for Loan Loss", "documentation": "Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses." } } }, "auth_ref": [ "r88", "r903" ] }, "us-gaap_InterestIncomeExpenseNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestIncomeExpenseNet", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest Income (Expense), Operating", "totalLabel": "Net interest income", "documentation": "Amount of interest income (expense) classified as operating." } } }, "auth_ref": [ "r726", "r903", "r1156" ] }, "us-gaap_InterestIncomeSecuritiesTaxExempt": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestIncomeSecuritiesTaxExempt", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest Income, Securities, Operating, Tax Exempt", "terseLabel": "Exempt from federal income tax", "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax." } } }, "auth_ref": [ "r93", "r137", "r138" ] }, "us-gaap_InterestIncomeSecuritiesTaxable": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestIncomeSecuritiesTaxable", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest Income, Securities, Operating, Taxable", "terseLabel": "Taxable", "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax." } } }, "auth_ref": [ "r93", "r137", "r138" ] }, "ffin_InterestOnFederalFundsSoldAndInterestBearingDepositsInBanks": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "InterestOnFederalFundsSoldAndInterestBearingDepositsInBanks", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Interest income derived from overnight sales of short-term funds to other banks and from interest-bearing balances due from depository institutions, including the Federal Reserve Bank of Dallas.", "label": "Interest On Federal Funds Sold And Interest Bearing Deposits In Banks", "terseLabel": "Interest on federal funds sold and interest-bearing demand deposits in banks" } } }, "auth_ref": [] }, "ffin_InterestOnRepurchaseAgreementsAndBorrowings": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "InterestOnRepurchaseAgreementsAndBorrowings", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestExpenseOperating", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Interest On Repurchase Agreements And Borrowings", "label": "Interest On Repurchase Agreements And Borrowings", "terseLabel": "Interest on repurchase agreements and borrowings" } } }, "auth_ref": [] }, "us-gaap_InterestPaidNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestPaidNet", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Interest Paid, Excluding Capitalized Interest, Operating Activity", "verboseLabel": "Interest paid", "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount." } } }, "auth_ref": [ "r203", "r206", "r207" ] }, "us-gaap_InterestRateLockCommitmentsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestRateLockCommitmentsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "terseLabel": "IRLCs [Member]", "label": "Interest Rate Lock Commitments [Member]", "documentation": "Commitments to extend credit where the interest rate is locked in advance of funds being disbursed for a specified period of time." } } }, "auth_ref": [] }, "us-gaap_InterestReceivable": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InterestReceivable", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Interest Receivable", "terseLabel": "Accrued interest receivable", "documentation": "Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable." } } }, "auth_ref": [ "r1126", "r1331" ] }, "us-gaap_InternalCreditAssessmentAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InternalCreditAssessmentAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfDebtRestructuredLoansStillAccruingForCreditLossesParentheticalDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Internal Credit Assessment [Axis]", "label": "Internal Credit Assessment [Axis]", "documentation": "Information by entity-defined rating." } } }, "auth_ref": [ "r110", "r111", "r112", "r939", "r941", "r1196" ] }, "us-gaap_InternalCreditAssessmentDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InternalCreditAssessmentDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfDebtRestructuredLoansStillAccruingForCreditLossesParentheticalDetail" ], "lang": { "en-us": { "role": { "label": "Internal Credit Assessment [Domain]", "terseLabel": "Internal Credit Assessment [Domain]", "documentation": "Entity defined credit risk rating." } } }, "auth_ref": [ "r939", "r1196" ] }, "us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount", "terseLabel": "Fund commitments", "documentation": "Amount of financial support committed by investment company to investee that is contractually required but not provided." } } }, "auth_ref": [ "r791" ] }, "us-gaap_InvestmentIssuerNameAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentIssuerNameAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Investment, Issuer Name [Axis]", "documentation": "Information by name of issuer of investment." } } }, "auth_ref": [ "r1332", "r1333", "r1334", "r1335" ] }, "us-gaap_InvestmentIssuerNameDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentIssuerNameDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Investment, Issuer Name [Domain]", "documentation": "Name of issuer of investment." } } }, "auth_ref": [ "r1332", "r1333", "r1334", "r1335" ] }, "us-gaap_InvestmentOwnedAtCost": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentOwnedAtCost", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Investment Owned, Cost", "terseLabel": "Investment Carrying Value", "documentation": "Cost of the investment." } } }, "auth_ref": [ "r782", "r798", "r799", "r854", "r857", "r862", "r865", "r1016", "r1025", "r1326" ] }, "us-gaap_InvestmentPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Investment Securities", "label": "Investment, Policy [Policy Text Block]", "documentation": "Disclosure of accounting policy for investment in financial asset." } } }, "auth_ref": [ "r767", "r782", "r783", "r784", "r785", "r855", "r856" ] }, "us-gaap_InvestmentRelatedLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentRelatedLiabilities", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Investment related liabilities", "label": "Investment-related Liabilities", "totalLabel": "Investment-related Liabilities, Total", "documentation": "The aggregate amount of liabilities as of the balance sheet date for obligations incurred in connection with the entity's investments." } } }, "auth_ref": [ "r1290" ] }, "us-gaap_Investments": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "Investments", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Investments", "label": "Investments", "totalLabel": "Investments, Total", "documentation": "Sum of the carrying amounts as of the balance sheet date of all investments." } } }, "auth_ref": [ "r745", "r746", "r1009", "r1010", "r1011", "r1013" ] }, "us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesTables" ], "lang": { "en-us": { "role": { "label": "Investments Classified by Contractual Maturity Date [Table Text Block]", "terseLabel": "Carrying Value and Estimated Fair Value of Available-for-Sale Securities", "documentation": "Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments." } } }, "auth_ref": [] }, "us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentsDebtAndEquitySecuritiesAbstract", "lang": { "en-us": { "role": { "label": "Investments, Debt and Equity Securities [Abstract]" } } }, "auth_ref": [] }, "us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/Securities" ], "lang": { "en-us": { "role": { "terseLabel": "Securities", "label": "Investment in Debt and Equity Instruments and Cash and Cash Equivalent [Text Block]", "documentation": "The entire disclosure for cash, cash equivalent, investment in debt and equity securities, equity method investment, investment in joint venture, and investment classified as other." } } }, "auth_ref": [ "r623" ] }, "us-gaap_InvestorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestorMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "NMTC Investments [Member]", "label": "Investor [Member]", "documentation": "Business entity or individual that puts money, by purchase or expenditure, in something offering potential profitable returns, such as interest income or appreciation in value." } } }, "auth_ref": [ "r1275", "r1276" ] }, "us-gaap_LaborAndRelatedExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LaborAndRelatedExpense", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Labor and Related Expense", "terseLabel": "Salaries, commissions and employee benefits", "documentation": "Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit." } } }, "auth_ref": [ "r728", "r903", "r1133" ] }, "us-gaap_Liabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "Liabilities", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Liabilities", "totalLabel": "Total liabilities", "documentation": "Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others." } } }, "auth_ref": [ "r16", "r41", "r42", "r43", "r45", "r46", "r47", "r48", "r211", "r213", "r214", "r319", "r371", "r372", "r373", "r374", "r375", "r376", "r377", "r378", "r379", "r542", "r545", "r546", "r633", "r809", "r912", "r947", "r1025", "r1205", "r1279", "r1280" ] }, "us-gaap_LiabilitiesAndStockholdersEquity": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LiabilitiesAndStockholdersEquity", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Liabilities and Equity", "totalLabel": "Total liabilities and shareholders' equity", "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any." } } }, "auth_ref": [ "r56", "r84", "r756", "r995", "r1009", "r1010", "r1138", "r1142", "r1183", "r1274" ] }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LiabilitiesAndStockholdersEquityAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "LIABILITIES AND SHAREHOLDERS' EQUITY" } } }, "auth_ref": [] }, "us-gaap_LineOfCredit": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LineOfCredit", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "line of Credit", "totalLabel": "Long-term Line of Credit, Total", "label": "Long-Term Line of Credit", "terseLabel": "Line of credit", "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement." } } }, "auth_ref": [ "r16", "r81", "r1292" ] }, "us-gaap_LineOfCreditFacilityCapacityAvailableForTradePurchases": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LineOfCreditFacilityCapacityAvailableForTradePurchases", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Available line of credit", "label": "Line of Credit Facility, Capacity Available for Trade Purchases", "documentation": "The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for financing purchases of goods acquired for inventory or imminent delivery to a customer." } } }, "auth_ref": [] }, "us-gaap_LineOfCreditFacilityLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LineOfCreditFacilityLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Line of Credit Facility [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r370", "r1138", "r1140", "r1204" ] }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Line of Credit Facility, Maximum Borrowing Capacity", "terseLabel": "Revolving line of credit, permitted", "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility." } } }, "auth_ref": [ "r40", "r44" ] }, "ffin_LineOfCreditFacilityRenewalDate": { "xbrltype": "dateItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LineOfCreditFacilityRenewalDate", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Line Of Credit Facility Renewal Date", "documentation": "Line Of Credit Facility Renewal Date", "terseLabel": "Line of credit facility, renewal date" } } }, "auth_ref": [] }, "us-gaap_LineOfCreditFacilityTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LineOfCreditFacilityTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Line of Credit Facility [Table]", "documentation": "Disclosure of information about short-term and long-term contractual arrangements with lender under which borrowing can occur up to maximum amount. Includes, but is not limited to, letter of credit, standby letter of credit, and revolving credit arrangement." } } }, "auth_ref": [ "r40", "r44", "r370", "r1138", "r1140", "r1204" ] }, "ffin_LoanAndLeaseReceivableAllowance": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoanAndLeaseReceivableAllowance", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "label": "Loan And Lease Receivable Allowance", "documentation": "Loan And Lease Receivable Allowance" } } }, "auth_ref": [] }, "ffin_LoanAndLeasesReceivableNetReportedAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoanAndLeasesReceivableNetReportedAmount", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Loans held-for-investment, net of allowance for credit losses", "totalLabel": "Net loans held-for-investment", "label": "Loan And Leases Receivable Net Reported Amount", "documentation": "Loan And Leases Receivable Net Reported Amount", "netLabel": "Loans, net" } } }, "auth_ref": [] }, "ffin_LoanRecoveries": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoanRecoveries", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 7.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Loan Recoveries", "documentation": "Loan Recoveries", "terseLabel": "Loan recoveries" } } }, "auth_ref": [] }, "us-gaap_LoanRestructuringModificationAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoanRestructuringModificationAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "label": "Loan Restructuring Modification [Axis]", "terseLabel": "Loan Restructuring Modification [Axis]", "documentation": "Information by concessions made to the terms of loan contracts." } } }, "auth_ref": [ "r281", "r282", "r284", "r919" ] }, "us-gaap_LoanRestructuringModificationDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoanRestructuringModificationDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "label": "Loan Restructuring Modification [Domain]", "terseLabel": "Loan Restructuring Modification [Domain]", "documentation": "Concessions made to the terms of loan contracts, including but not limited to, interest rate reductions, maturity extensions, principal forgiveness, and payment deferral." } } }, "auth_ref": [ "r281", "r282", "r284", "r919" ] }, "us-gaap_LoanRestructuringTrialModificationsAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoanRestructuringTrialModificationsAmount", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "label": "Loan Restructuring, Trial Modifications, Amount", "terseLabel": "Principal Forgiveness", "documentation": "Amount of financing receivable modified on trial basis." } } }, "auth_ref": [ "r113" ] }, "ffin_LoansAndLeaseReceivableAllowance": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansAndLeaseReceivableAllowance", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "ffin_LoanAndLeasesReceivableNetReportedAmount", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Less: Allowance for credit losses", "totalLabel": "Total allowance for loan losses", "label": "Loans and Lease Receivable Allowance", "documentation": "Loans and lease receivable allowance", "negatedLabel": "Less-allowance for credit losses" } } }, "auth_ref": [] }, "ffin_LoansAndLeaseReceivableImpairedNonPerformingAccrualOfInterest": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansAndLeaseReceivableImpairedNonPerformingAccrualOfInterest", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Total", "terseLabel": "Non accrual loans", "label": "Loans and Lease Receivable Impaired Non-performing Accrual of Interest", "documentation": "Loans and lease receivable impaired non-performing accrual of interest" } } }, "auth_ref": [] }, "ffin_LoansAndLeaseReceivablesImpairedNonPerformingAccrualOfInterest": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansAndLeaseReceivablesImpairedNonPerformingAccrualOfInterest", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Total", "terseLabel": "Total", "label": "Loans And Lease Receivables Impaired Non Performing Accrual Of Interest", "documentation": "Loans And Lease Receivables Impaired Non Performing Accrual Of Interest" } } }, "auth_ref": [] }, "ffin_LoansAndLeasesReceivableCollectivelyEvaluatedForAllowance": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansAndLeasesReceivableCollectivelyEvaluatedForAllowance", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail" ], "lang": { "en-us": { "role": { "documentation": "Loans and leases receivable collectively evaluated for allowance.", "label": "Loans and Leases Receivable Collectively Evaluated For Allowance", "terseLabel": "Loans collectively evaluated for credit losses", "verboseLabel": "Allowance for loan loss Collectively evaluated" } } }, "auth_ref": [] }, "ffin_LoansAndLeasesReceivableCollectivelyEvaluatedForPortfolioLoans": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansAndLeasesReceivableCollectivelyEvaluatedForPortfolioLoans", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail" ], "lang": { "en-us": { "role": { "label": "Loans and Leases Receivable Collectively Evaluated For Portfolio Loans", "documentation": "Loans and Leases Receivable Collectively Evaluated For Portfolio Loans", "terseLabel": "Portfolio loans collectively evaluated" } } }, "auth_ref": [] }, "us-gaap_LoansAndLeasesReceivableDisclosureLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoansAndLeasesReceivableDisclosureLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfDebtRestructuredLoansStillAccruingForCreditLossesParentheticalDetail" ], "lang": { "en-us": { "role": { "label": "Loans and Leases Receivable Disclosure [Line Items]", "terseLabel": "Loans and Leases Receivable Disclosure [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [] }, "us-gaap_LoansAndLeasesReceivableDisclosureTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoansAndLeasesReceivableDisclosureTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfDebtRestructuredLoansStillAccruingForCreditLossesParentheticalDetail" ], "lang": { "en-us": { "role": { "label": "Loans and Leases Receivable Disclosure [Table]", "terseLabel": "Loans and Leases Receivable Disclosure [Table]", "documentation": "Disclosure of information about loans and leases receivable." } } }, "auth_ref": [ "r101" ] }, "ffin_LoansAndLeasesReceivableGrossCarryingAmountTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansAndLeasesReceivableGrossCarryingAmountTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Loans and leases receivable gross carrying amount.", "label": "Loans And Leases Receivable Gross Carrying Amount [Table Text Block]", "terseLabel": "Loans Held-for-Investment by Portfolio Segment" } } }, "auth_ref": [] }, "ffin_LoansAndLeasesReceivablesGross": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansAndLeasesReceivablesGross", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "label": "Loans and Leases Receivables, Gross", "totalLabel": "Total Loans", "terseLabel": "Total Loans", "documentation": "Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreement." } } }, "auth_ref": [] }, "ffin_LoansCollectivelyEvaluatedForCreditLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansCollectivelyEvaluatedForCreditLosses", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail" ], "lang": { "en-us": { "role": { "label": "Loans Collectively Evaluated for Credit Losses", "documentation": "Loans Collectively Evaluated for Credit Losses", "totalLabel": "Total portfolio loans" } } }, "auth_ref": [] }, "ffin_LoansHeldForInvestmentPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansHeldForInvestmentPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "documentation": "Loans held for investment.", "label": "Loans Held For Investment Policy Text Block [Policy Text Block]", "terseLabel": "Loans Held-for-Investment" } } }, "auth_ref": [] }, "us-gaap_LoansHeldForSaleFairValueDisclosure": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoansHeldForSaleFairValueDisclosure", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresSummaryOfLoansHeldForSaleAtFairValueDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresSummaryOfLoansHeldForSaleAtFairValueDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnauditedParenthetical" ], "lang": { "en-us": { "role": { "label": "Loan, Held-for-Sale, Fair Value Disclosure", "totalLabel": "Loans held-for-sale at fair value", "verboseLabel": "Loans held-for-sale, fair value", "documentation": "Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables." } } }, "auth_ref": [ "r601", "r602", "r626", "r628", "r629", "r631", "r1264", "r1265", "r1266" ] }, "ffin_LoansHeldForSaleTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansHeldForSaleTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/LoansHeldForSale" ], "lang": { "en-us": { "role": { "documentation": "Loans held for sale.", "label": "Loans Held for Sale [Text Block]", "terseLabel": "Loans Held for Sale" } } }, "auth_ref": [] }, "ffin_LoansHeldForSaleValuedAtTheLowerOfCostOrFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansHeldForSaleValuedAtTheLowerOfCostOrFairValue", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/LoansHeldForSaleAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Loans held for sale valued at the lower of cost or fair value", "label": "Loans Held For Sale Valued At The Lower Of Cost Or Fair Value", "terseLabel": "Loans held-for-sale at the lower of cost or fair value" } } }, "auth_ref": [] }, "ffin_LoansIndividuallyEvaluatedForCreditLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansIndividuallyEvaluatedForCreditLosses", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail" ], "lang": { "en-us": { "role": { "label": "Loans individually evaluated for credit losses", "documentation": "Loans individually evaluated for credit losses", "terseLabel": "Portfolio loans Individually evaluated" } } }, "auth_ref": [] }, "us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLosses" ], "lang": { "en-us": { "role": { "label": "Loans, Notes, Trade and Other Receivables Disclosure [Text Block]", "verboseLabel": "Loans Held for Investment and Allowance for Credit Losses", "documentation": "The entire disclosure for claims held for amounts due to entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses." } } }, "auth_ref": [ "r644", "r1160" ] }, "ffin_LoansReceivableCollateralForAdditionalSecuredBorrowings": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansReceivableCollateralForAdditionalSecuredBorrowings", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Loans Receivable, Collateral for Additional Secured Borrowings", "documentation": "Loans Receivable, Collateral for Additional Secured Borrowings", "terseLabel": "Loans held by subsidiaries subject to blanket liens for additional security" } } }, "auth_ref": [] }, "ffin_LoansReceivableCollateralForSecuredBorrowings": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansReceivableCollateralForSecuredBorrowings", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Carrying amount of loans receivable pledged to secure borrowing lines with the Federal Home Loan Bank of Dallas.", "label": "Loans Receivable, Collateral for Secured Borrowings", "terseLabel": "Loans held by subsidiaries subject to blanket liens" } } }, "auth_ref": [] }, "ffin_LoansReceivableContractualAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansReceivableContractualAmount", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Loans receivable contractual amount.", "label": "Loans Receivable Contractual Amount", "verboseLabel": "Total loans of contractual amounts" } } }, "auth_ref": [] }, "us-gaap_LoansReceivableFairValueDisclosure": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoansReceivableFairValueDisclosure", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail": { "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Loans Receivable, Fair Value Disclosure", "terseLabel": "Fair value of total loans", "verboseLabel": "Loans", "documentation": "Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts." } } }, "auth_ref": [ "r892", "r994", "r1269", "r1270", "r1271", "r1273" ] }, "us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoansReceivableHeldForSaleNetNotPartOfDisposalGroup", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/LoansHeldForSaleAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance", "verboseLabel": "Loans held for sale", "periodEndLabel": "Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance, Ending Balance", "periodStartLabel": "Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance, Beginning Balance", "terseLabel": "Held-for-sale ($18,136 and $25,431, at fair value March 31, 2026 and December 31, 2025, respectively)", "documentation": "Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security." } } }, "auth_ref": [ "r1162" ] }, "ffin_LoansReceivablesHeldForSaleNetAbstract": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansReceivablesHeldForSaleNetAbstract", "lang": { "en-us": { "role": { "documentation": "Loans Receivables Held For Sale Net [Abstract].", "label": "Loans Receivables Held For Sale Net [Abstract]" } } }, "auth_ref": [] }, "ffin_LoansReceivablesNetAbstract": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansReceivablesNetAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Loans Receivables Net [Abstract].", "label": "Loans Receivables Net [Abstract]", "terseLabel": "LOANS:" } } }, "auth_ref": [] }, "ffin_LoansStillAccruingPastDueNinetyDaysOrMoreRestructuredLoansForeclosedAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LoansStillAccruingPastDueNinetyDaysOrMoreRestructuredLoansForeclosedAssets", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Loans still accruing past due ninety days or more restructured loans foreclosed assets.", "label": "Loans Still Accruing Past Due Ninety Days Or More Restructured Loans Foreclosed Assets", "terseLabel": "Nonaccrual, past due 90 days or more and still accruing, restructured loans and foreclosed assets" } } }, "auth_ref": [] }, "dei_LocalPhoneNumber": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "LocalPhoneNumber", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Local Phone Number", "documentation": "Local phone number for entity." } } }, "auth_ref": [] }, "ffin_LowIncomeHousingTaxCreditInvestmentsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "LowIncomeHousingTaxCreditInvestmentsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Low Income Housing Tax Credit Investments [Member]", "documentation": "Low Income Housing Tax Credit Investments [Member]", "terseLabel": "Low Income Housing Tax Credit Investments [Member]" } } }, "auth_ref": [] }, "us-gaap_MaturitiesOfTimeDepositsDescription": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MaturitiesOfTimeDepositsDescription", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Maturities of Time Deposits, Description", "terseLabel": "Interest-bearing time deposits, maturity period (in days)", "documentation": "Description of time deposit maturities, including certificates of deposit." } } }, "auth_ref": [ "r7" ] }, "us-gaap_MaturityOfTimeDeposits": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MaturityOfTimeDeposits", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Maturity of Time Deposits", "terseLabel": "Interest-bearing time deposits, maturity period, years", "documentation": "Period of time between issuance and maturity of customer deposits, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days." } } }, "auth_ref": [] }, "srt_MaximumMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "MaximumMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum [Member]", "documentation": "Upper limit of the provided range." } } }, "auth_ref": [ "r146", "r148", "r150", "r151", "r153", "r164", "r166", "r167", "r168", "r169", "r259", "r365", "r366", "r367", "r368", "r406", "r434", "r435", "r436", "r446", "r605", "r687", "r769", "r770", "r777", "r800", "r801", "r852", "r858", "r860", "r861", "r864", "r870", "r871", "r873", "r874", "r887", "r888", "r919", "r948", "r958", "r962", "r969", "r972", "r987", "r988", "r992", "r993", "r1007", "r1207", "r1281", "r1282", "r1283", "r1284", "r1285", "r1286" ] }, "ecd_MeasureAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "MeasureAxis", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Measure [Axis]", "terseLabel": "Measure:" } } }, "auth_ref": [ "r1074" ] }, "ecd_MeasureName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "MeasureName", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Measure Name", "terseLabel": "Name" } } }, "auth_ref": [ "r1074" ] }, "us-gaap_MeasurementInputDiscountRateMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MeasurementInputDiscountRateMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Measurement Input, Discount Rate [Member]", "terseLabel": "Measurement Input, Discount Rate [Member]", "documentation": "Measurement input using interest rate to determine present value of future cash flows." } } }, "auth_ref": [ "r962", "r969", "r972", "r1264", "r1265", "r1266" ] }, "us-gaap_MeasurementInputTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MeasurementInputTypeAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Measurement Input Type [Axis]", "terseLabel": "Measurement Input Type [Axis]", "documentation": "Information by type of measurement input used to determine value of asset and liability." } } }, "auth_ref": [ "r432", "r433", "r434", "r435", "r436", "r437", "r603", "r604", "r605", "r962", "r969", "r972", "r987" ] }, "us-gaap_MeasurementInputTypeDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MeasurementInputTypeDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Measurement Input Type [Domain]", "terseLabel": "Measurement Input Type [Domain]", "documentation": "Measurement input used to determine value of asset and liability." } } }, "auth_ref": [ "r603", "r604", "r605", "r962", "r969", "r972", "r987" ] }, "srt_MinimumMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "MinimumMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum [Member]", "documentation": "Lower limit of the provided range." } } }, "auth_ref": [ "r146", "r148", "r150", "r151", "r153", "r164", "r166", "r167", "r168", "r169", "r259", "r365", "r366", "r367", "r368", "r406", "r434", "r435", "r436", "r446", "r605", "r687", "r769", "r770", "r777", "r800", "r801", "r852", "r858", "r860", "r861", "r864", "r870", "r871", "r873", "r874", "r887", "r888", "r919", "r948", "r958", "r962", "r969", "r972", "r987", "r988", "r992", "r1007", "r1207", "r1281", "r1282", "r1283", "r1284", "r1285", "r1286" ] }, "ffin_MinimumPeriodOfLoansPastDue": { "xbrltype": "durationItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "MinimumPeriodOfLoansPastDue", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Minimum period of loans past due.", "label": "Minimum Period Of Loans Past Due", "terseLabel": "Minimum number of days to consider the loans as non-accrual" } } }, "auth_ref": [] }, "ecd_MnpiDiscTimedForCompValFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "MnpiDiscTimedForCompValFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "MNPI Disclosure Timed for Compensation Value [Flag]", "terseLabel": "MNPI Disclosure Timed for Compensation Value" } } }, "auth_ref": [ "r1093" ] }, "srt_MortgageLoansOnRealEstateNumberOfLoans": { "xbrltype": "integerItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "MortgageLoansOnRealEstateNumberOfLoans", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Number of Loans", "terseLabel": "Number of loans held-for-sale", "documentation": "Number of mortgage loans within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate." } } }, "auth_ref": [ "r164", "r870", "r871" ] }, "ecd_MtrlTermsOfTrdArrTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "MtrlTermsOfTrdArrTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Material Terms of Trading Arrangement [Text Block]", "terseLabel": "Material Terms of Trading Arrangement" } } }, "auth_ref": [ "r1101" ] }, "ffin_MuncipalMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "MuncipalMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Muncipal.", "label": "Muncipal [Member]", "terseLabel": "Municipal [Member]" } } }, "auth_ref": [] }, "ecd_NamedExecutiveOfficersFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NamedExecutiveOfficersFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Named Executive Officers, Footnote [Text Block]", "terseLabel": "Named Executive Officers, Footnote" } } }, "auth_ref": [ "r1075" ] }, "ffin_NatureOfOperationsPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NatureOfOperationsPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "documentation": "Nature of operations.", "label": "Nature Of Operations [Policy Text Block]", "terseLabel": "Nature of Operations" } } }, "auth_ref": [] }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetCashProvidedByUsedInFinancingActivities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash Provided by (Used in) Financing Activity, Including Discontinued Operation", "totalLabel": "Net cash (uused in) provided by financing activities", "documentation": "Amount of cash inflow (outflow) from financing activity, including, but not limited to, discontinued operation. Financing activity includes, but is not limited to, obtaining resource from owner and providing return on, and return of, their investment; borrowing money and repaying amount borrowed, or settling obligation; and obtaining and paying for other resource obtained from creditor on long-term credit." } } }, "auth_ref": [ "r205" ] }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]", "terseLabel": "CASH FLOWS FROM FINANCING ACTIVITIES:" } } }, "auth_ref": [] }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetCashProvidedByUsedInInvestingActivities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash Provided by (Used in) Investing Activity, Including Discontinued Operation", "totalLabel": "Net cash used in investing activities", "documentation": "Amount of cash inflow (outflow) from investing activity, including, but not limited to, discontinued operation. Investing activity includes, but is not limited to, making and collecting loan, acquiring and disposing of debt and equity instruments, property, plant, and equipment, and other productive assets." } } }, "auth_ref": [ "r205" ] }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]", "terseLabel": "CASH FLOWS FROM INVESTING ACTIVITIES:" } } }, "auth_ref": [] }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetCashProvidedByUsedInOperatingActivities", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash Provided by (Used in) Operating Activity, Including Discontinued Operation", "totalLabel": "Net cash provided by operating activities", "documentation": "Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity." } } }, "auth_ref": [ "r64", "r65", "r67" ] }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]", "terseLabel": "CASH FLOWS FROM OPERATING ACTIVITIES:" } } }, "auth_ref": [] }, "us-gaap_NetChangeInterestBearingDepositsDomestic": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetChangeInterestBearingDepositsDomestic", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Net Change Interest-Bearing Deposits, Domestic", "verboseLabel": "Net (decrease) increase in interest-bearing deposits", "documentation": "The increase (decrease) in interest-bearing deposits domestic." } } }, "auth_ref": [ "r23" ] }, "us-gaap_NetChangeNoninterestBearingDepositsDomestic": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetChangeNoninterestBearingDepositsDomestic", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Net Change Noninterest-Bearing Deposits, Domestic", "terseLabel": "Net (decrease) increase in noninterest-bearing deposits", "documentation": "The increase (decrease) in domestic noninterest bearing deposits." } } }, "auth_ref": [ "r23" ] }, "ffin_NetGainLossOnSaleOfForeclosedAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NetGainLossOnSaleOfForeclosedAssets", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 8.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Net gain (loss) on sale of foreclosed assets", "documentation": "Net gain (loss) on the sale of foreclosed real estate and other assets.", "label": "Net Gain Loss On Sale Of Foreclosed Assets" } } }, "auth_ref": [] }, "us-gaap_NetIncomeLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetIncomeLoss", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited": { "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0, "order": 0.0 }, "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited", "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Net Income (Loss)", "terseLabel": "Net Income (Loss)", "totalLabel": "NET EARNINGS", "verboseLabel": "NET EARNINGS", "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent." } } }, "auth_ref": [ "r60", "r67", "r94", "r172", "r174", "r187", "r189", "r194", "r211", "r213", "r214", "r217", "r223", "r227", "r228", "r229", "r230", "r231", "r234", "r235", "r244", "r319", "r371", "r372", "r373", "r374", "r375", "r376", "r377", "r378", "r379", "r383", "r386", "r388", "r391", "r443", "r473", "r539", "r599", "r633", "r761", "r831", "r846", "r847", "r901", "r903", "r905", "r1023", "r1205" ] }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetIncomeLossAvailableToCommonStockholdersBasic", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail": { "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Net Income (Loss) Available to Common Stockholders, Basic, Total", "label": "Net Income (Loss) Available to Common Stockholders, Basic", "terseLabel": "Net earnings per share, basic, Net Earnings", "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders." } } }, "auth_ref": [ "r172", "r198", "r227", "r228", "r229", "r230", "r236", "r237", "r245", "r248", "r386", "r388", "r391", "r539" ] }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NetIncomeLossAvailableToCommonStockholdersDiluted", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "label": "Net Income (Loss) Available to Common Stockholders, Diluted", "totalLabel": "Net earnings per share, diluted, Net Earnings", "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders." } } }, "auth_ref": [ "r198", "r238", "r240", "r241", "r242", "r243", "r245", "r248" ] }, "ffin_NetTaxBenefitFromStockBasedCompensation": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NetTaxBenefitFromStockBasedCompensation", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 17.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "negatedLabel": "Net tax benefit from stock-based compensation", "label": "Net tax benefit from stock-based compensation", "documentation": "Net tax benefit from stock-based compensation" } } }, "auth_ref": [] }, "ffin_NetUnrealizedGainOnLoansHeldForSale": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NetUnrealizedGainOnLoansHeldForSale", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresSummaryOfLoansHeldForSaleAtFairValueDetail": { "parentTag": "us-gaap_LoansHeldForSaleFairValueDisclosure", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresSummaryOfLoansHeldForSaleAtFairValueDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Net unrealized gains on loans held-for-sale", "label": "Net Unrealized Gain On Loans Held For Sale", "documentation": "Net Unrealized Gain On Loans Held For Sale" } } }, "auth_ref": [] }, "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "New Accounting Pronouncements, Policy [Policy Text Block]", "terseLabel": "Other Recently Issued and Effective Authoritative Accounting Guidance", "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact." } } }, "auth_ref": [] }, "ffin_NonAutoMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NonAutoMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Non auto.", "label": "Non Auto [Member]", "terseLabel": "Non-Auto [Member]" } } }, "auth_ref": [] }, "ffin_NonCollateralDependentLoansIndividuallyEvaluatedForCreditLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NonCollateralDependentLoansIndividuallyEvaluatedForCreditLosses", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Non Collateral Dependent Loans Individually Evaluated for Credit Losses", "documentation": "Non Collateral Dependent Loans Individually Evaluated for Credit Losses", "terseLabel": "Non-Collateral Dependent Loans Individually Evaluated for Credit Losses" } } }, "auth_ref": [] }, "ecd_NonGaapMeasureDescriptionTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NonGaapMeasureDescriptionTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Non-GAAP Measure Description [Text Block]", "terseLabel": "Non-GAAP Measure Description" } } }, "auth_ref": [ "r1074" ] }, "ecd_NonNeosMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NonNeosMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Non-NEOs [Member]", "terseLabel": "Non-NEOs" } } }, "auth_ref": [ "r1038", "r1048", "r1058", "r1082", "r1090" ] }, "ffin_NonOwnerOccupiedCreMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NonOwnerOccupiedCreMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Non owner occupied CRE.", "label": "Non Owner Occupied CRE [Member]", "terseLabel": "Non-Owner Occupied CRE [Member]" } } }, "auth_ref": [] }, "ecd_NonPeoNeoAvgCompActuallyPaidAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NonPeoNeoAvgCompActuallyPaidAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Non-PEO NEO Average Compensation Actually Paid Amount", "terseLabel": "Non-PEO NEO Average Compensation Actually Paid Amount" } } }, "auth_ref": [ "r1065" ] }, "ecd_NonPeoNeoAvgTotalCompAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NonPeoNeoAvgTotalCompAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Non-PEO NEO Average Total Compensation Amount", "terseLabel": "Non-PEO NEO Average Total Compensation Amount" } } }, "auth_ref": [ "r1064" ] }, "ecd_NonPeoNeoMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NonPeoNeoMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Non-PEO NEO [Member]", "terseLabel": "Non-PEO NEO" } } }, "auth_ref": [ "r1082" ] }, "ecd_NonRule10b51ArrAdoptedFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NonRule10b51ArrAdoptedFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Non-Rule 10b5-1 Arrangement Adopted [Flag]", "terseLabel": "Non-Rule 10b5-1 Arrangement Adopted" } } }, "auth_ref": [ "r1101" ] }, "ecd_NonRule10b51ArrTrmntdFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "NonRule10b51ArrTrmntdFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Non-Rule 10b5-1 Arrangement Terminated [Flag]", "terseLabel": "Non-Rule 10b5-1 Arrangement Terminated" } } }, "auth_ref": [ "r1101" ] }, "us-gaap_NoninterestBearingDepositLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NoninterestBearingDepositLiabilities", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Deposits", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Noninterest-Bearing Deposit Liabilities", "terseLabel": "NONINTEREST-BEARING DEPOSITS", "totalLabel": "Noninterest-bearing Deposit Liabilities, Total", "documentation": "The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity." } } }, "auth_ref": [ "r76" ] }, "us-gaap_NoninterestExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NoninterestExpense", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Noninterest Expense", "totalLabel": "Total noninterest expense", "documentation": "Total aggregate amount of all noninterest expense." } } }, "auth_ref": [ "r91", "r903" ] }, "us-gaap_NoninterestExpenseAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NoninterestExpenseAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Noninterest Expense [Abstract]", "terseLabel": "NONINTEREST EXPENSE:" } } }, "auth_ref": [] }, "us-gaap_NoninterestIncome": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NoninterestIncome", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Noninterest Income", "totalLabel": "Total noninterest income", "documentation": "The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified." } } }, "auth_ref": [ "r89", "r903" ] }, "us-gaap_NoninterestIncomeAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NoninterestIncomeAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Noninterest Income [Abstract]", "terseLabel": "NONINTEREST INCOME:" } } }, "auth_ref": [] }, "us-gaap_NoninterestIncomeOther": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NoninterestIncomeOther", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Other noninterest income", "totalLabel": "Noninterest Income, Other, Total", "label": "Noninterest Income, Other", "verboseLabel": "Other noninterest income", "documentation": "Represents the total of noninterest income derived from certain activities and assets including (for example): (1) venture capital investments; (2) bank owned life insurance; (3) foreign currency transactions; and (4) mortgage servicing rights." } } }, "auth_ref": [ "r89" ] }, "ffin_NotesReceivable": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NotesReceivable", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "ffin_LoanAndLeasesReceivableNetReportedAmount", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Held-for-investment", "label": "Notes Receivable", "documentation": "Notes Receivable" } } }, "auth_ref": [] }, "us-gaap_NotesReceivableGross": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NotesReceivableGross", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Total Past Due", "totalLabel": "Financing Receivable, before Allowance for Credit Loss, Total", "label": "Financing Receivable, before Allowance for Credit Loss", "terseLabel": "Total", "documentation": "Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease." } } }, "auth_ref": [ "r111", "r118", "r141", "r142", "r178", "r276", "r333", "r338", "r624", "r869", "r941", "r942", "r1121", "r1185" ] }, "us-gaap_NotesReceivableNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "NotesReceivableNet", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, after Allowance for Credit Loss", "totalLabel": "Total", "documentation": "Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease." } } }, "auth_ref": [ "r338", "r819", "r1162", "r1294" ] }, "ffin_NumberOfBankLocations": { "xbrltype": "integerItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NumberOfBankLocations", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Number of bank locations.", "label": "Number Of Bank Locations", "terseLabel": "Number of locations" } } }, "auth_ref": [] }, "ffin_NumberOfCommonSharesAcquiredInConnectionWithDirectorsDeferredCompensationPlan": { "xbrltype": "sharesItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NumberOfCommonSharesAcquiredInConnectionWithDirectorsDeferredCompensationPlan", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnauditedParenthetical", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Number of common shares acquired in connection with directors deferred compensation plan.", "label": "Number Of Common Shares Acquired In Connection With Directors Deferred Compensation Plan", "terseLabel": "Treasury stock, shares", "negatedPeriodEndLabel": "Treasury Stock, Ending Balance, Shares", "negatedPeriodStartLabel": "Treasury Stock, Beginning Balance, Shares" } } }, "auth_ref": [] }, "ffin_NumberOfSharesThatHaveBeenAcquiredDuringPeriodInConnectionWithDirectorsDeferredCompensationPlan": { "xbrltype": "sharesItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NumberOfSharesThatHaveBeenAcquiredDuringPeriodInConnectionWithDirectorsDeferredCompensationPlan", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Number of shares that have been acquired during the period in connection with the directors' deferred compensation plan.", "label": "Number of Shares that have been Acquired During Period in Connection with Directors' Deferred Compensation Plan", "terseLabel": "Shares purchased in connection with directors' deferred compensation plan, net (unaudited), Shares", "negatedLabel": "Shares purchased in connection with directors' deferred compensation plan, net (unaudited), Shares" } } }, "auth_ref": [] }, "ffin_NumberOfSharesThatHaveBeenAcquiredDuringPeriodInConnectionWithDirectorsDeferredCompensationPlanValue": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "NumberOfSharesThatHaveBeenAcquiredDuringPeriodInConnectionWithDirectorsDeferredCompensationPlanValue", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Number of shares that have been acquired during the period in connection with the directors' deferred compensation plan value.", "label": "Number of Shares that have been Acquired During Period in Connection with Directors' Deferred Compensation Plan Value", "negatedLabel": "Shares purchased in connection with directors' deferred compensation plan, net (unaudited)", "terseLabel": "Shares purchased in connection with directors' deferred compensation plan, net (unaudited)" } } }, "auth_ref": [] }, "us-gaap_OccupancyNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OccupancyNet", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 12.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Occupancy, Net", "terseLabel": "Net occupancy expense", "documentation": "Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense." } } }, "auth_ref": [ "r62", "r90", "r127" ] }, "us-gaap_OffBalanceSheetCreditLossLiability": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OffBalanceSheetCreditLossLiability", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Off-Balance-Sheet, Credit Loss, Liability", "periodEndLabel": "Off-Balance-Sheet, Credit Loss, Liability, Ending Balance", "periodStartLabel": "Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance", "terseLabel": "Off-balance sheet commitments", "documentation": "Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging." } } }, "auth_ref": [ "r323", "r369" ] }, "us-gaap_OffBalanceSheetCreditLossLiabilityChangeInMethodCreditLossExpenseReversal": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OffBalanceSheetCreditLossLiabilityChangeInMethodCreditLossExpenseReversal", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Provision for off-balance sheet credit exposures", "label": "Off-Balance-Sheet, Credit Loss, Liability, Change in Method, Credit Loss Expense (Reversal)", "documentation": "Amount of expense (reversal of expense) for expected credit loss on off-balance sheet commitment, from change in methodology. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging." } } }, "auth_ref": [ "r325" ] }, "ffin_OperationalAndOtherLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "OperationalAndOtherLosses", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 7.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Operational and other losses.", "label": "Operational and other losses", "terseLabel": "Operational and other losses" } } }, "auth_ref": [] }, "us-gaap_OtherAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherAssets", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 6.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Other Assets", "terseLabel": "OTHER ASSETS", "totalLabel": "Other Assets, Total", "documentation": "Amount of assets classified as other." } } }, "auth_ref": [ "r74", "r176", "r748", "r917", "r1009", "r1010", "r1025" ] }, "us-gaap_OtherBorrowings": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherBorrowings", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsScheduleOfBorrowingsDetail" ], "lang": { "en-us": { "role": { "label": "Other Borrowings", "terseLabel": "Other borrowings", "documentation": "The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity." } } }, "auth_ref": [ "r78", "r81" ] }, "us-gaap_OtherCommitment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherCommitment", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Other Commitment, Total", "label": "Other Commitment", "terseLabel": "Reserve for unfunded commitments", "documentation": "Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions." } } }, "auth_ref": [ "r1139", "r1143", "r1288" ] }, "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total", "terseLabel": "Change in unrealized gain (loss) in investment securities available-for-sale, net of related income taxes (unaudited)", "label": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax", "documentation": "Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale." } } }, "auth_ref": [ "r184", "r185", "r186", "r762" ] }, "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited": { "parentTag": "us-gaap_OtherComprehensiveIncomeLossTax", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "negatedLabel": "Change in unrealized gain (loss) on investment securities available-for-sale", "totalLabel": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, Tax, Total", "label": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, Tax", "terseLabel": "Change in unrealized loss on investment securities available-for-sale", "documentation": "Amount, before adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale." } } }, "auth_ref": [ "r2" ] }, "us-gaap_OtherComprehensiveIncomeLossBeforeTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeLossBeforeTax", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited": { "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "negatedTotalLabel": "Total other items of comprehensive earnings (loss)", "totalLabel": "Total other items of comprehensive earnings (loss)", "label": "Other Comprehensive Income (Loss), before Tax", "documentation": "Amount before tax, after reclassification adjustments of other comprehensive income (loss)." } } }, "auth_ref": [ "r195", "r636", "r637", "r642", "r729", "r762", "r1129", "r1130" ] }, "us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "OTHER ITEMS OF COMPREHENSIVE EARNINGS (LOSS):", "label": "Other Comprehensive Income (Loss), before Tax [Abstract]" } } }, "auth_ref": [] }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited": { "parentTag": "us-gaap_OtherComprehensiveIncomeLossTax", "weight": -1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Reclassification adjustment for realized gains (losses) on investment securities included in net earnings", "totalLabel": "Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax, Total", "label": "Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax", "negatedLabel": "Reclassification adjustment for realized gains (loss) on investment securities included in net earnings", "documentation": "Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities." } } }, "auth_ref": [ "r2" ] }, "us-gaap_OtherComprehensiveIncomeLossTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeLossTax", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited": { "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": -1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "label": "Other Comprehensive Income (Loss), Tax", "totalLabel": "Comprehensive earnings (loss) tax benefit (expense)", "negatedTotalLabel": "Comprehensive earnings (loss) tax benefit (expense)", "documentation": "Amount of tax expense (benefit) allocated to other comprehensive income (loss)." } } }, "auth_ref": [ "r2", "r192", "r195", "r450", "r466", "r467", "r636", "r640", "r642", "r729", "r762" ] }, "us-gaap_OtherComprehensiveIncomeLossTaxParentheticalDisclosuresAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeLossTaxParentheticalDisclosuresAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Income tax benefit (expense) related to:", "label": "Other Comprehensive Income (Loss), Tax, Parenthetical Disclosure [Abstract]" } } }, "auth_ref": [] }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited": { "parentTag": "us-gaap_OtherComprehensiveIncomeLossBeforeTax", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveEarningsLossUnaudited" ], "lang": { "en-us": { "role": { "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax", "terseLabel": "Change in unrealized loss on investment securities available-for- sale, before income taxes", "documentation": "Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale." } } }, "auth_ref": [ "r184", "r186", "r318" ] }, "us-gaap_OtherLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherLiabilities", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Liabilities", "weight": 1.0, "order": 8.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Other Liabilities", "terseLabel": "OTHER LIABILITIES", "totalLabel": "Other Liabilities, Total", "documentation": "Amount of liabilities classified as other." } } }, "auth_ref": [ "r80", "r750", "r804", "r805", "r947", "r1009", "r1010", "r1025", "r1293", "r1327" ] }, "us-gaap_OtherLiabilitiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherLiabilitiesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Other Liabilities [Member]", "terseLabel": "Other Liabilities [Member]", "documentation": "Primary financial statement caption encompassing other liabilities." } } }, "auth_ref": [ "r980" ] }, "us-gaap_OtherNoninterestExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherNoninterestExpense", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 8.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Other noninterest expense", "label": "Other Noninterest Expense", "documentation": "Amount of noninterest expense classified as other." } } }, "auth_ref": [ "r91", "r903" ] }, "ecd_OtherPerfMeasureAmt": { "xbrltype": "decimalItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "OtherPerfMeasureAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Other Performance Measure, Amount", "terseLabel": "Other Performance Measure, Amount" } } }, "auth_ref": [ "r1074" ] }, "us-gaap_OtherShortTermBorrowings": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherShortTermBorrowings", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Leveraged loan, invest in other borrowings", "terseLabel": "Other borrowings", "label": "Other Short-Term Borrowings", "documentation": "Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer." } } }, "auth_ref": [ "r38", "r808" ] }, "us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain]", "documentation": "Provides the categories of debt securities, available-for-sale or held-to-maturity, on which an entity may recognize other than temporary impairments (OTTI) for which a portion related to credit losses has been recognized in earnings and a portion related to all other factors has been recognized in other comprehensive income." } } }, "auth_ref": [ "r15" ] }, "ecd_OutstandingAggtErrCompAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "OutstandingAggtErrCompAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Outstanding Aggregate Erroneous Compensation Amount", "terseLabel": "Outstanding Aggregate Erroneous Compensation Amount" } } }, "auth_ref": [ "r1036", "r1046", "r1056", "r1088" ] }, "ecd_OutstandingRecoveryCompAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "OutstandingRecoveryCompAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Outstanding Recovery Compensation Amount", "terseLabel": "Compensation Amount" } } }, "auth_ref": [ "r1039", "r1049", "r1059", "r1091" ] }, "ecd_OutstandingRecoveryIndName": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "OutstandingRecoveryIndName", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Outstanding Recovery, Individual Name", "terseLabel": "Name" } } }, "auth_ref": [ "r1039", "r1049", "r1059", "r1091" ] }, "ffin_OwnerOccupiedCreMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "OwnerOccupiedCreMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Owner occupied cre.", "label": "Owner Occupied Cre [Member]", "terseLabel": "Owner Occupied CRE [Member]" } } }, "auth_ref": [] }, "us-gaap_PassMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PassMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "terseLabel": "Pass [Member]", "label": "Pass [Member]", "documentation": "A category of financing receivables not considered to be special mention, substandard, doubtful, and loss receivables." } } }, "auth_ref": [ "r110", "r111", "r112", "r1196", "r1197" ] }, "us-gaap_PastDueFinancingReceivablesTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PastDueFinancingReceivablesTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Past Due [Table Text Block]", "terseLabel": "Schedule of Past Due Loans", "documentation": "Tabular disclosure of aging analysis for financing receivable." } } }, "auth_ref": [ "r942", "r1194" ] }, "ecd_PayVsPerformanceDisclosureLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PayVsPerformanceDisclosureLineItems", "lang": { "en-us": { "role": { "label": "Pay vs Performance Disclosure [Line Items]", "terseLabel": "Pay vs Performance Disclosure" } } }, "auth_ref": [ "r1063" ] }, "us-gaap_PaymentsForProceedsFromLoansAndLeases": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PaymentsForProceedsFromLoansAndLeases", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0, "order": 5.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "negatedLabel": "Net increase in loans held-for-investment", "label": "Payments for (Proceeds from) Loans and Leases", "totalLabel": "Payments for (Proceeds from) Loans and Leases, Total", "documentation": "The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both." } } }, "auth_ref": [ "r733" ] }, "us-gaap_PaymentsOfDividendsCommonStock": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PaymentsOfDividendsCommonStock", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0, "order": 8.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Payments of Ordinary Dividends, Common Stock", "negatedTerseLabel": "Dividends paid", "documentation": "Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity." } } }, "auth_ref": [ "r63" ] }, "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0, "order": 4.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Payments to Acquire Debt Securities, Available-for-Sale", "negatedLabel": "Purchases", "documentation": "Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r21", "r201", "r286" ] }, "us-gaap_PaymentsToAcquireProductiveAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PaymentsToAcquireProductiveAssets", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0, "order": 6.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "negatedLabel": "Purchases of bank premises, equipment and software", "totalLabel": "Payments to Acquire Productive Assets, Total", "label": "Payments to Acquire Productive Assets", "documentation": "The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets." } } }, "auth_ref": [ "r129", "r1254", "r1255", "r1256" ] }, "ecd_PeerGroupIssuersFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PeerGroupIssuersFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Peer Group Issuers, Footnote [Text Block]", "terseLabel": "Peer Group Issuers, Footnote" } } }, "auth_ref": [ "r1073" ] }, "ecd_PeerGroupTotalShareholderRtnAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PeerGroupTotalShareholderRtnAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Peer Group Total Shareholder Return Amount", "terseLabel": "Peer Group Total Shareholder Return Amount" } } }, "auth_ref": [ "r1073" ] }, "ecd_PeoActuallyPaidCompAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PeoActuallyPaidCompAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "PEO Actually Paid Compensation Amount", "terseLabel": "PEO Actually Paid Compensation Amount" } } }, "auth_ref": [ "r1065" ] }, "ecd_PeoMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PeoMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "PEO [Member]", "terseLabel": "PEO" } } }, "auth_ref": [ "r1082" ] }, "ecd_PeoName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PeoName", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "PEO Name", "terseLabel": "PEO Name" } } }, "auth_ref": [ "r1075" ] }, "ecd_PeoTotalCompAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PeoTotalCompAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "PEO Total Compensation Amount", "terseLabel": "PEO Total Compensation Amount" } } }, "auth_ref": [ "r1064" ] }, "ffin_PercentageOfInvestmentPortfolioGuaranteedByPermanentSchoolFund": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "PercentageOfInvestmentPortfolioGuaranteedByPermanentSchoolFund", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Percentage Of Investment Portfolio Guaranteed By Permanent School Fund", "terseLabel": "Percentage of securities guaranteed by Texas Permanent School Fund", "documentation": "Percentage of investment portfolio guaranteed by permanent school fund." } } }, "auth_ref": [] }, "ffin_PercentageOfOptionVestingRate": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "PercentageOfOptionVestingRate", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Percentage of option vesting rate", "label": "Percentage of Option Vesting Rate", "documentation": "Percentage of option vesting rate." } } }, "auth_ref": [] }, "ffin_PerformanceMeasurementAmountInAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "PerformanceMeasurementAmountInAssets", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Performance measurement amount in assets", "label": "Performance Measurement Amount In Assets", "documentation": "Performance Measurement Amount In Assets" } } }, "auth_ref": [] }, "us-gaap_PerformanceSharesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PerformanceSharesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Performance Shares [Member]", "verboseLabel": "Performance share [Member]", "documentation": "Share-based payment arrangement awarded for meeting performance target." } } }, "auth_ref": [ "r1217", "r1218", "r1219", "r1220", "r1221", "r1222", "r1223", "r1224", "r1225", "r1226", "r1227", "r1228", "r1229", "r1230", "r1231", "r1232", "r1233", "r1234", "r1235", "r1236", "r1237", "r1238", "r1239", "r1240", "r1241", "r1242" ] }, "ffin_PerformanceStockUnitsAwardsSettlementPayout": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "PerformanceStockUnitsAwardsSettlementPayout", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails" ], "lang": { "en-us": { "role": { "documentation": "Performance Stock Units Awards Settlement Payout", "label": "Performance Stock Units Awards Settlement Payout", "terseLabel": "Performance Stock Units Awards Settlement Payout" } } }, "auth_ref": [] }, "us-gaap_PlanNameAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PlanNameAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Plan Name [Axis]", "documentation": "Information by plan name for share-based payment arrangement." } } }, "auth_ref": [ "r1217", "r1218", "r1219", "r1220", "r1221", "r1222", "r1223", "r1224", "r1225", "r1226", "r1227", "r1228", "r1229", "r1230", "r1231", "r1232", "r1233", "r1234", "r1235", "r1236", "r1237", "r1238", "r1239", "r1240", "r1241", "r1242" ] }, "us-gaap_PlanNameDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PlanNameDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Plan Name [Domain]", "documentation": "Plan name for share-based payment arrangement." } } }, "auth_ref": [ "r1217", "r1218", "r1219", "r1220", "r1221", "r1222", "r1223", "r1224", "r1225", "r1226", "r1227", "r1228", "r1229", "r1230", "r1231", "r1232", "r1233", "r1234", "r1235", "r1236", "r1237", "r1238", "r1239", "r1240", "r1241", "r1242" ] }, "ecd_PnsnAdjsPrrSvcCstMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PnsnAdjsPrrSvcCstMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Pension Adjustments Prior Service Cost [Member]", "terseLabel": "Pension Adjustments Prior Service Cost" } } }, "auth_ref": [ "r1066" ] }, "ecd_PnsnAdjsSvcCstMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PnsnAdjsSvcCstMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Pension Adjustments Service Cost [Member]", "terseLabel": "Pension Adjustments Service Cost" } } }, "auth_ref": [ "r1110" ] }, "ecd_PnsnBnftsAdjFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PnsnBnftsAdjFnTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Pension Benefits Adjustments, Footnote [Text Block]", "terseLabel": "Pension Benefits Adjustments, Footnote" } } }, "auth_ref": [ "r1065" ] }, "us-gaap_PortionAtFairValueFairValueDisclosureMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PortionAtFairValueFairValueDisclosureMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "axisDefault": "Portion at Fair Value Measurement [Member] [Default]", "label": "Portion at Fair Value Measurement [Member]", "documentation": "Measured at fair value for financial reporting purposes." } } }, "auth_ref": [ "r625", "r626", "r628", "r629", "r631", "r633", "r634", "r892", "r1272" ] }, "ffin_PrintingStationeryAndSupplies": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "PrintingStationeryAndSupplies", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 6.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Expense related to printed materials, brochures, forms, customer checks and general office supplies.", "label": "Printing Stationery And Supplies", "terseLabel": "Printing, stationery and supplies" } } }, "auth_ref": [] }, "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale", "terseLabel": "Proceeds from maturities, calls, and paydowns", "documentation": "Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r201", "r202", "r1167" ] }, "us-gaap_ProceedsFromRepaymentsOfShortTermDebt": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProceedsFromRepaymentsOfShortTermDebt", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Proceeds from (Repayments of) Short-term Debt, Total", "label": "Proceeds from (Repayments of) Short-Term Debt", "terseLabel": "Net proceeds (repayment) in repurchase agreements and other borrowings", "documentation": "The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer." } } }, "auth_ref": [] }, "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Proceeds from Sale of Debt Securities, Available-for-Sale", "terseLabel": "Sales", "verboseLabel": "Sales of investment securities available-for-sale", "documentation": "Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r20", "r201", "r286", "r317" ] }, "us-gaap_ProceedsFromSaleOfHeldToMaturitySecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProceedsFromSaleOfHeldToMaturitySecurities", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Securities held-to-maturity.", "label": "Proceeds from Sale of Held-to-Maturity Securities", "documentation": "The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer." } } }, "auth_ref": [ "r20", "r286" ] }, "us-gaap_ProceedsFromStockOptionsExercised": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProceedsFromStockOptionsExercised", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 6.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Proceeds from stock option exercises/stock unit conversions/restricted stock activity", "label": "Proceeds from Stock Options Exercised", "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement." } } }, "auth_ref": [ "r3", "r13" ] }, "ffin_ProfessionalAndServiceFees": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ProfessionalAndServiceFees", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0, "order": 9.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Fees paid to third parties; including consultants, actuaries, mortgage loan processors, escrow tax servicers, consumer loan processing companies, etc.", "label": "Professional and service fees", "terseLabel": "Professional and service fees" } } }, "auth_ref": [] }, "us-gaap_ProfitLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProfitLoss", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total", "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest", "verboseLabel": "Net earnings", "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest." } } }, "auth_ref": [ "r172", "r174", "r187", "r189", "r204", "r211", "r213", "r214", "r217", "r223", "r231", "r234", "r235", "r319", "r371", "r372", "r373", "r374", "r375", "r376", "r377", "r378", "r379", "r383", "r443", "r473", "r539", "r540", "r543", "r544", "r599", "r633", "r734", "r736", "r760", "r792", "r831", "r846", "r847", "r976", "r977", "r1024", "r1131", "r1205" ] }, "us-gaap_PropertyPlantAndEquipmentNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PropertyPlantAndEquipmentNet", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment, Net", "terseLabel": "BANK PREMISES AND EQUIPMENT, net", "periodEndLabel": "Property, Plant and Equipment, Net, Ending Balance", "periodStartLabel": "Property, Plant and Equipment, Net, Beginning Balance", "totalLabel": "Property, Plant and Equipment, Net, Total", "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures." } } }, "auth_ref": [ "r6", "r647", "r742", "r758", "r995" ] }, "us-gaap_ProvisionForLoanLeaseAndOtherLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProvisionForLoanLeaseAndOtherLosses", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": -1.0, "order": 0.0 }, "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "totalLabel": "Provision for Loan, Lease, and Other Losses, Total", "label": "Provision for Loan, Lease, and Other Losses", "terseLabel": "Provision for credit losses", "documentation": "Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value." } } }, "auth_ref": [ "r4", "r87", "r103", "r903" ] }, "us-gaap_ProvisionForLoanLossesExpensed": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProvisionForLoanLossesExpensed", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Reversal of Provision for credit losses", "label": "Financing Receivable, Credit Loss, Expense (Reversal)", "documentation": "Amount of credit loss expense (reversal of expense) for financing receivable." } } }, "auth_ref": [ "r199", "r328", "r727" ] }, "us-gaap_ProvisionForOtherCreditLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProvisionForOtherCreditLosses", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Provision for loan losses", "label": "Provision for Other Credit Losses", "documentation": "Amount of expense related to credit loss from transactions other than loan and lease transactions." } } }, "auth_ref": [ "r4", "r87" ] }, "us-gaap_ProvisionForOtherLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ProvisionForOtherLosses", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Provision for Other Losses", "documentation": "Amount of expense related to other loss." } } }, "auth_ref": [ "r4", "r61", "r91" ] }, "ecd_PvpTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PvpTable", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Pay vs Performance Disclosure [Table]", "terseLabel": "Pay vs Performance Disclosure" } } }, "auth_ref": [ "r1063" ] }, "ecd_PvpTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "PvpTableTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Pay vs Performance [Table Text Block]", "terseLabel": "Pay vs Performance Disclosure, Table" } } }, "auth_ref": [ "r1063" ] }, "srt_RangeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "RangeAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Axis]", "terseLabel": "Range [Axis]", "documentation": "Information by statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median." } } }, "auth_ref": [ "r146", "r148", "r150", "r151", "r153", "r164", "r166", "r167", "r168", "r169", "r259", "r365", "r366", "r367", "r368", "r394", "r406", "r434", "r435", "r436", "r442", "r446", "r605", "r660", "r671", "r687", "r769", "r770", "r777", "r800", "r801", "r852", "r858", "r860", "r861", "r864", "r870", "r871", "r873", "r874", "r887", "r888", "r919", "r948", "r958", "r962", "r969", "r972", "r987", "r988", "r992", "r993", "r1007", "r1016", "r1203", "r1207", "r1265", "r1282", "r1283", "r1284", "r1285", "r1286" ] }, "srt_RangeMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "RangeMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Domain]", "terseLabel": "Range [Domain]", "documentation": "Statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median." } } }, "auth_ref": [ "r146", "r148", "r150", "r151", "r153", "r164", "r166", "r167", "r168", "r169", "r259", "r365", "r366", "r367", "r368", "r394", "r406", "r434", "r435", "r436", "r442", "r446", "r605", "r660", "r671", "r687", "r769", "r770", "r777", "r800", "r801", "r852", "r858", "r860", "r861", "r864", "r870", "r871", "r873", "r874", "r887", "r888", "r919", "r948", "r958", "r962", "r969", "r972", "r987", "r988", "r992", "r993", "r1007", "r1016", "r1203", "r1207", "r1265", "r1282", "r1283", "r1284", "r1285", "r1286" ] }, "us-gaap_RealEstateMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RealEstateMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Real Estate [Member]", "terseLabel": "Real Estate [Member]", "documentation": "Property consisting of land, land improvement and buildings." } } }, "auth_ref": [ "r1212", "r1213" ] }, "ffin_RealEstateMortgageOperations": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "RealEstateMortgageOperations", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 10.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "It represents the amount of real estate mortgage operations.", "label": "Real estate mortgage operations", "terseLabel": "Gain on sale and fees on mortgage loans" } } }, "auth_ref": [] }, "ffin_RealizedGainOnSaleAndFeesOnMortgageLoans": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "RealizedGainOnSaleAndFeesOnMortgageLoans", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail": { "parentTag": "us-gaap_GainLossOnSaleOfMortgageLoans", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfGainLossOnSaleOfMortgageLoansDetail" ], "lang": { "en-us": { "role": { "documentation": "Realized gain on sale and fees on mortgage loans.", "label": "Realized Gain On Sale And Fees On Mortgage Loans", "terseLabel": "Realized gain on sale and fees on mortgage loans" } } }, "auth_ref": [] }, "us-gaap_ReceivablesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ReceivablesAbstract", "lang": { "en-us": { "role": { "label": "Receivables [Abstract]" } } }, "auth_ref": [] }, "us-gaap_Reclassifications": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "Reclassifications", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Reclassifications", "label": "Reclassifications [Text Block]", "documentation": "The entire disclosure for classifying current financial statements, which may be different from classifications in the prior year's financial statements. Disclose any material changes in classification including an explanation of the reason for the change and the areas impacted." } } }, "auth_ref": [ "r173" ] }, "ecd_RecoveryOfErrCompDisclosureLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "RecoveryOfErrCompDisclosureLineItems", "lang": { "en-us": { "role": { "label": "Recovery of Erroneously Awarded Compensation Disclosure [Line Items]", "terseLabel": "Recovery of Erroneously Awarded Compensation Disclosure" } } }, "auth_ref": [ "r1031", "r1041", "r1051", "r1083" ] }, "ffin_RelatedAllowanceOnCollateralDependentLoans": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "RelatedAllowanceOnCollateralDependentLoans", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Related Allowance on Collateral Dependent Loans", "documentation": "Related Allowance on Collateral Dependent Loans", "terseLabel": "Related Allowance on Collateral Dependent Loans" } } }, "auth_ref": [] }, "ffin_RelatedAllowanceOnNonCollateralDependentLoans": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "RelatedAllowanceOnNonCollateralDependentLoans", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Related Allowance On Non Collateral Dependent Loans", "documentation": "Related Allowance On Non Collateral Dependent Loans", "terseLabel": "Related Allowance on Non-Collateral Dependent Loans" } } }, "auth_ref": [] }, "us-gaap_RelatedPartyDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RelatedPartyDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Related and Nonrelated Parties [Domain]", "documentation": "Related and nonrelated parties. Related party includes, but is not limited to, affiliate, other entity for which investment is accounted for under equity method, trust for benefit of employee, principal owner, management, and member of immediate family, and other party that may be prevented from pursuing separate interests because of control, significant influence, or ownership interest." } } }, "auth_ref": [ "r211", "r216", "r217", "r276", "r401", "r405", "r649", "r650", "r751", "r757", "r803", "r804", "r805", "r806", "r807", "r829", "r851", "r1328" ] }, "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RelatedPartyTransactionsByRelatedPartyAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Related and Nonrelated Parties [Axis]", "documentation": "Information by related and nonrelated parties. Related party includes, but is not limited to, affiliate, other entity for which investment is accounted for under equity method, trust for benefit of employee, principal owner, management, and member of immediate family, and other party that may be prevented from pursuing separate interests because of control, significant influence, or ownership interest." } } }, "auth_ref": [ "r211", "r216", "r217", "r276", "r401", "r405", "r649", "r650", "r751", "r757", "r803", "r804", "r805", "r806", "r807", "r829", "r851", "r1278", "r1328" ] }, "ffin_RepurchaseAgreements": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "RepurchaseAgreements", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Repurchase Agreements", "terseLabel": "Repurchase Agreements", "documentation": "Repurchase Agreement" } } }, "auth_ref": [] }, "ffin_ReserveForUnfundedCommitmentsOtherLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ReserveForUnfundedCommitmentsOtherLiabilities", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Reserve for unfunded commitments (Other liabilities)", "documentation": "Reserve for unfunded commitments (Other liabilities)", "terseLabel": "Reserve for unfunded commitments (Other liabilities)" } } }, "auth_ref": [] }, "ffin_ResidentialMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ResidentialMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAmortizedCostBasisOfLoansOnNonaccrualStatusAndLoansPastDueOver90D", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansHeldforinvestmentByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Residential.", "label": "Residential [Member]", "terseLabel": "Residential [Member]" } } }, "auth_ref": [] }, "us-gaap_ResidentialMortgageBackedSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ResidentialMortgageBackedSecuritiesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "Residential Mortgage-Backed Securities [Member]", "terseLabel": "Residential Mortgage-Backed Securities [Member]", "documentation": "Securities collateralized by residential real estate mortgage loans." } } }, "auth_ref": [ "r984", "r986", "r987", "r1168", "r1171", "r1176", "r1177", "r1178", "r1214", "r1215" ] }, "us-gaap_ResidentialMortgageMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ResidentialMortgageMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Residential Mortgage [Member]", "terseLabel": "Residential Mortgage [Member]", "documentation": "Loan to purchase or refinance residential real estate for example, but not limited to, a home, in which the real estate itself serves as collateral for the loan." } } }, "auth_ref": [ "r941" ] }, "ecd_RestatementDateAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "RestatementDateAxis", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Restatement Determination Date [Axis]", "terseLabel": "Restatement Determination Date:" } } }, "auth_ref": [ "r1032", "r1042", "r1052", "r1084" ] }, "ecd_RestatementDeterminationDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "RestatementDeterminationDate", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Restatement Determination Date", "terseLabel": "Restatement Determination Date" } } }, "auth_ref": [ "r1033", "r1043", "r1053", "r1085" ] }, "ecd_RestatementDoesNotRequireRecoveryTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "RestatementDoesNotRequireRecoveryTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Restatement Does Not Require Recovery [Text Block]", "terseLabel": "Restatement does not require Recovery" } } }, "auth_ref": [ "r1040", "r1050", "r1060", "r1092" ] }, "us-gaap_RestrictedStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RestrictedStockMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Restricted Stock [Member]", "terseLabel": "Restricted Stock [Member]", "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met." } } }, "auth_ref": [ "r1149", "r1217", "r1218", "r1219", "r1220", "r1221", "r1222", "r1223", "r1224", "r1225", "r1226", "r1227", "r1228", "r1229", "r1230", "r1231", "r1232", "r1233", "r1234", "r1235", "r1236", "r1237", "r1238", "r1239", "r1240", "r1241", "r1242" ] }, "us-gaap_RestrictedStockUnitsRSUMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RestrictedStockUnitsRSUMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Restricted Stock Units [Member]", "label": "Restricted Stock Units (RSUs) [Member]", "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met." } } }, "auth_ref": [ "r1217", "r1218", "r1219", "r1220", "r1221", "r1222", "r1223", "r1224", "r1225", "r1226", "r1227", "r1228", "r1229", "r1230", "r1231", "r1232", "r1233", "r1234", "r1235", "r1236", "r1237", "r1238", "r1239", "r1240", "r1241", "r1242" ] }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RetainedEarningsAccumulatedDeficit", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "RETAINED EARNINGS", "label": "Retained Earnings (Accumulated Deficit)", "verboseLabel": "Retained earnings net of tax after transitional charges", "periodEndLabel": "Retained Earnings (Accumulated Deficit), Ending Balance", "periodStartLabel": "Retained Earnings (Accumulated Deficit), Beginning Balance", "totalLabel": "Retained Earnings (Accumulated Deficit), Total", "documentation": "Amount of accumulated undistributed earnings (deficit)." } } }, "auth_ref": [ "r53", "r70", "r755", "r774", "r776", "r789", "r812", "r995" ] }, "us-gaap_RetainedEarningsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RetainedEarningsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Retained Earnings [Member]", "terseLabel": "Retained Earnings [Member]", "documentation": "Accumulated undistributed earnings (deficit)." } } }, "auth_ref": [ "r170", "r171", "r172", "r220", "r221", "r222", "r224", "r231", "r233", "r235", "r320", "r321", "r363", "r382", "r443", "r460", "r461", "r470", "r471", "r472", "r474", "r538", "r539", "r586", "r588", "r589", "r591", "r597", "r645", "r646", "r771", "r773", "r793", "r1329" ] }, "ecd_Rule10b51ArrAdoptedFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "Rule10b51ArrAdoptedFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Rule 10b5-1 Arrangement Adopted [Flag]", "terseLabel": "Rule 10b5-1 Arrangement Adopted" } } }, "auth_ref": [ "r1101" ] }, "ecd_Rule10b51ArrTrmntdFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "Rule10b51ArrTrmntdFlag", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Rule 10b5-1 Arrangement Terminated [Flag]", "terseLabel": "Rule 10b5-1 Arrangement Terminated" } } }, "auth_ref": [ "r1101" ] }, "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Accounts and Financing Receivables [Table]", "terseLabel": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]", "documentation": "Disclosure of information about accounts and financing receivables. Includes, but is not limited to, amount of receivable and allowance for credit loss." } } }, "auth_ref": [ "r51", "r57", "r277", "r1165" ] }, "ffin_ScheduleOfAllowanceForLoanLossByPortfolioSegmentTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfAllowanceForLoanLossByPortfolioSegmentTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of allowance for loan loss by portfolio segment.", "label": "Schedule Of Allowance For Loan Loss By Portfolio Segment [Table Text Block]", "terseLabel": "Schedule of Allowance for Loan Losses by Portfolio Segment" } } }, "auth_ref": [] }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfAvailableForSaleSecuritiesLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of Available-for-sale Securities [Line Items]", "label": "Debt Securities, Available-for-Sale [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298" ] }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]", "terseLabel": "Summary of Available-for-Sale Securities", "documentation": "Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value." } } }, "auth_ref": [] }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateParentheticalDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "label": "Business Combination [Table]", "terseLabel": "Schedule of Business Acquisitions, by Acquisition [Table]", "documentation": "Disclosure of information about business combination. Includes, but is not limited to, recognized asset and liability." } } }, "auth_ref": [ "r354", "r476", "r477", "r478", "r479", "r485", "r486", "r487", "r488", "r494", "r499", "r500", "r501", "r502", "r503", "r504", "r505", "r506", "r507", "r508", "r509", "r510", "r512", "r513", "r514", "r515", "r516", "r519", "r520", "r521", "r522", "r523", "r524", "r530", "r531", "r532", "r536", "r962", "r972", "r1247", "r1249", "r1251" ] }, "ffin_ScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of compared to the amortized cost basis of each class of financing receivables table text block", "label": "Schedule of compared to the amortized cost basis of each class of financing receivables table text block", "terseLabel": "Schedule of compared to the amortized cost basis of each class of financing receivables" } } }, "auth_ref": [] }, "us-gaap_ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]", "terseLabel": "Changes in Allowance for Loan Losses", "documentation": "Tabular disclosure of allowance for credit loss of financing receivable, classified as current." } } }, "auth_ref": [ "r1187" ] }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]", "terseLabel": "Computation of Basic EPS to Dilutive EPS", "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations." } } }, "auth_ref": [ "r1148" ] }, "ffin_ScheduleOfFinancialEffectLoanModificationsPresentedTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfFinancialEffectLoanModificationsPresentedTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of financial effect loan modifications presented table text block", "label": "Schedule of financial effect loan modifications presented table text block", "terseLabel": "Schedule of financial effect loan modifications presented" } } }, "auth_ref": [] }, "us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfFinancingReceivableAllowanceForCreditLossesTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfAllowanceForLoanLossesByPortfolioSegmentDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesSummaryOfInformationOnTheAllowanceForCreditLossesParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Allowance for Credit Loss [Table]", "terseLabel": "Schedule of Financing Receivable, Allowance for Credit Losses [Table]", "documentation": "Disclosure of information about allowance for credit loss on financing receivable." } } }, "auth_ref": [ "r145", "r327", "r328", "r329", "r330", "r331", "r332" ] }, "us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Credit Quality Indicator [Table]", "terseLabel": "Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table]", "documentation": "Disclosure of information about credit quality indicator for financing receivable." } } }, "auth_ref": [ "r111", "r922", "r923", "r924", "r925", "r926", "r927", "r928", "r929", "r930", "r931", "r932", "r933", "r934", "r935", "r936", "r937", "r938", "r939", "r940", "r941", "r1195", "r1198" ] }, "us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Modified [Table]", "terseLabel": "Schedule of Financing Receivable, Troubled Debt Restructurings [Table]", "documentation": "Disclosure of information about financing receivable modified for debtor experiencing financial difficulty." } } }, "auth_ref": [ "r113", "r114", "r281", "r282", "r919" ] }, "us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Nonaccrual [Table Text Block]", "terseLabel": "Schedule of amortized cost basis of loans on nonaccrual status and loans past due over 90 days still accruing", "documentation": "Tabular disclosure of financing receivable on nonaccrual status." } } }, "auth_ref": [ "r334" ] }, "us-gaap_ScheduleOfFinancingReceivablesPastDueTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfFinancingReceivablesPastDueTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfNonaccrualLoansDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfPastDueLoansDetail" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Past Due [Table]", "terseLabel": "Schedule of Financing Receivables Past Due [Table]", "documentation": "Disclosure of information about aging analysis for financing receivable." } } }, "auth_ref": [ "r922", "r923", "r924", "r925", "r926", "r927", "r928", "r929", "r930", "r931", "r932", "r933", "r934", "r935", "r936", "r942", "r1194" ] }, "ffin_ScheduleOfGainLossOnSaleOfMortgageLoansAbstract": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfGainLossOnSaleOfMortgageLoansAbstract", "lang": { "en-us": { "role": { "documentation": "Schedule of gain loss on sale of mortgage loans.", "label": "Schedule Of Gain Loss On Sale Of Mortgage Loans [Abstract]" } } }, "auth_ref": [] }, "ffin_ScheduleOfGainLossOnSaleOfMortgageLoansTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfGainLossOnSaleOfMortgageLoansTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of gain loss on sale of mortgage loans.", "label": "Schedule Of Gain Loss On Sale Of Mortgage Loans [Table Text Block]", "terseLabel": "Summary of Gain Loss on Sale of Mortgage Loans" } } }, "auth_ref": [] }, "ffin_ScheduleOfGrossChargeOffsByOriginationYearAndLoanClass": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfGrossChargeOffsByOriginationYearAndLoanClass", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "label": "Schedule Of Gross Charge Offs By Origination Year And Loan Class", "documentation": "Schedule Of Gross Charge Offs By Origination Year And Loan Class", "terseLabel": "Schedule of Company's gross charge-offs by origination year and loan class" } } }, "auth_ref": [] }, "ffin_ScheduleOfHowLoansWereModifiedAsTroubledDebtRestructuredLoansTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfHowLoansWereModifiedAsTroubledDebtRestructuredLoansTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of how the loans were modified as troubled debt restructured loans.", "label": "Schedule Of How Loans Were Modified As Troubled Debt Restructured Loans [Table Text Block]", "terseLabel": "Schedule of How Loans Were Modified as Troubled Debt Restructured Loans" } } }, "auth_ref": [] }, "us-gaap_ScheduleOfImpairedFinancingReceivableTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfImpairedFinancingReceivableTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Schedule of Impaired Financing Receivable [Table]", "terseLabel": "Schedule of Impaired Financing Receivable [Table]", "documentation": "Schedule of the recorded investment, unpaid principal balance, associated allowance, average recorded investment, accounting policies, and interest income recognized on the accrual and cash basis for impaired financing receivables by class of financing receivable." } } }, "auth_ref": [ "r105" ] }, "ffin_ScheduleOfInternalRatingsOfItsLoansHeldForInvestmentByPortfolioSegmentsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfInternalRatingsOfItsLoansHeldForInvestmentByPortfolioSegmentsTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of internal ratings of its loans held-for-investment, by portfolio segments [Table Text block].", "label": "Schedule Of Internal Ratings Of Its Loans Held For Investment By Portfolio Segments [Table Text Block]", "terseLabel": "Schedule of Company's Internal Ratings of its Loans Held-for-Investment, Including The Year of Origination, by Portfolio Segments" } } }, "auth_ref": [] }, "ffin_ScheduleOfInvestmentInLoansRelatedToAllowanceForLoanLossesOnBasisOfImpairmentMethodologyTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfInvestmentInLoansRelatedToAllowanceForLoanLossesOnBasisOfImpairmentMethodologyTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of investment in loans related to allowance for loan losses on the basis of impairment methodology.", "label": "Schedule Of Investment In Loans Related To Allowance For Loan Losses On Basis Of Impairment Methodology [Table Text Block]", "terseLabel": "Schedule of Investment in Loans Related to Balance in Allowance for Loan Losses on Basis of Company's Impairment Methodology" } } }, "auth_ref": [] }, "ffin_ScheduleOfModified12MonthsBeforeDefaultToBorrowersExperiencingFinancialDifficultyTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfModified12MonthsBeforeDefaultToBorrowersExperiencingFinancialDifficultyTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of modified 12 months before default to borrowers experiencing financial difficulty table text block", "label": "Schedule of modified 12 months before default to borrowers experiencing financial difficulty table text block", "terseLabel": "Schedule of modified 12 months before default to borrowers experiencing financial difficulty" } } }, "auth_ref": [] }, "ffin_ScheduleOfNonAccrualLoansTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ScheduleOfNonAccrualLoansTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of non accrual loans.", "label": "Schedule Of Non Accrual Loans [Table Text Block]", "terseLabel": "Schedule of nonaccrual loans" } } }, "auth_ref": [] }, "us-gaap_ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationTables" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of Changes in Performance Stock Units", "label": "Schedule of Nonvested Performance-Based Units Activity [Table Text Block]", "documentation": "Tabular disclosure of the changes in outstanding nonvested performance-based units." } } }, "auth_ref": [ "r72" ] }, "us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationTables" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of Changes in Restricted Stock Units", "label": "Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]", "documentation": "Tabular disclosure of the changes in outstanding nonvested restricted stock units." } } }, "auth_ref": [ "r72" ] }, "us-gaap_ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]", "terseLabel": "Summary of Outstanding Notional Balances and Fair Values of Outstanding Derivative Positions", "documentation": "Tabular disclosure of the notional amounts of outstanding derivative positions." } } }, "auth_ref": [ "r1257" ] }, "us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionTables" ], "lang": { "en-us": { "role": { "label": "Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block]", "terseLabel": "Schedule of Preliminary Estimated Fair Value Amounts Assigned to Major Asset and Liability Categories at Acquisition Date", "documentation": "Tabular disclosure of asset acquired and liability assumed in business combination and recognized at acquisition date." } } }, "auth_ref": [ "r1250", "r1252" ] }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]", "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]", "documentation": "Disclosure of information about share-based payment arrangement." } } }, "auth_ref": [ "r408", "r409", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r433", "r434", "r435", "r436", "r437", "r442" ] }, "us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationTables" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]", "terseLabel": "Summary of Vested and Unvested Restricted Stock Outstanding", "documentation": "Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year." } } }, "auth_ref": [ "r71" ] }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationTables" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Option, Activity [Table Text Block]", "terseLabel": "Schedule of Analysis of Stock Option Activity", "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value." } } }, "auth_ref": [ "r11", "r12", "r71" ] }, "us-gaap_ScheduleOfShortTermDebtTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ScheduleOfShortTermDebtTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Short-Term Debt [Table Text Block]", "terseLabel": "Schedule of Borrowings", "documentation": "Tabular disclosure of short-term debt arrangements (having initial terms of repayment within one year or the normal operating cycle, if longer) including: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation." } } }, "auth_ref": [ "r41" ] }, "us-gaap_SecuredDebtRepurchaseAgreements": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SecuredDebtRepurchaseAgreements", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Liabilities", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Secured Debt, Repurchase Agreements", "terseLabel": "REPURCHASE AGREEMENTS", "documentation": "Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt." } } }, "auth_ref": [ "r669" ] }, "ffin_SecuritiesAvailableForSaleMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "SecuritiesAvailableForSaleMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Securities Available for Sale [Member]", "label": "Securities Available for Sale [Member]", "terseLabel": "Available-for-Sale Securities [Member]" } } }, "auth_ref": [] }, "ffin_SecuritiesSoldUnderAgreementToRepurchaseMaturityDescription": { "xbrltype": "stringItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "SecuritiesSoldUnderAgreementToRepurchaseMaturityDescription", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Securities sold under agreement to repurchase maturity range days.", "label": "Securities Sold Under Agreement To Repurchase, Maturity Description", "terseLabel": "Securities sold under agreements to repurchase maturity range (in days)" } } }, "auth_ref": [] }, "us-gaap_SecuritiesSoldUnderAgreementsToRepurchase": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SecuritiesSoldUnderAgreementsToRepurchase", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsScheduleOfBorrowingsDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Securities Sold under Agreements to Repurchase, Total", "label": "Securities Sold under Agreements to Repurchase", "terseLabel": "Securities sold under agreements with customers to repurchase", "documentation": "Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset." } } }, "auth_ref": [ "r77", "r182", "r183", "r211", "r218", "r219", "r852", "r858", "r861", "r864", "r895", "r896" ] }, "dei_Security12bTitle": { "xbrltype": "securityTitleItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "Security12bTitle", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Title of 12(b) Security", "documentation": "Title of a 12(b) registered security." } } }, "auth_ref": [ "r1026" ] }, "dei_SecurityExchangeName": { "xbrltype": "edgarExchangeCodeItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "SecurityExchangeName", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Security Exchange Name", "documentation": "Name of the Exchange on which a security is registered." } } }, "auth_ref": [ "r1028" ] }, "srt_SegmentGeographicalDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "SegmentGeographicalDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Geographical [Domain]", "terseLabel": "Geographical [Domain]", "documentation": "Geographical area." } } }, "auth_ref": [ "r147", "r149", "r152", "r154", "r155", "r156", "r157", "r158", "r159", "r160", "r161", "r162", "r163", "r165", "r166", "r167", "r256", "r273", "r274", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r698", "r699", "r700", "r701", "r702", "r703", "r704", "r705", "r706", "r707", "r708", "r709", "r710", "r711", "r712", "r713", "r714", "r715", "r716", "r717", "r718", "r719", "r720", "r721", "r722", "r734", "r735", "r736", "r737", "r796", "r797", "r799", "r853", "r859", "r863", "r866", "r870", "r872", "r873", "r874", "r878", "r879", "r880", "r881", "r882", "r883", "r884", "r885", "r886", "r893", "r910", "r949", "r950", "r997", "r998", "r999", "r1000", "r1001", "r1002", "r1003", "r1004", "r1008", "r1016", "r1295", "r1297", "r1298", "r1299", "r1300", "r1301", "r1302", "r1303", "r1304", "r1305", "r1306", "r1307", "r1308", "r1309", "r1310", "r1311", "r1312", "r1313", "r1314", "r1315", "r1316", "r1317", "r1318", "r1319", "r1320", "r1321", "r1323", "r1324" ] }, "us-gaap_SegmentReportingPolicyPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SegmentReportingPolicyPolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Segment Reporting, Policy [Policy Text Block]", "terseLabel": "Segment Reporting", "documentation": "Disclosure of accounting policy for segment reporting." } } }, "auth_ref": [ "r263", "r264", "r265", "r266", "r267", "r268", "r269", "r272", "r273", "r914", "r915", "r918" ] }, "ffin_ServiceChargesOnDepositAccounts": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ServiceChargesOnDepositAccounts", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 5.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "It represents the amount of service charges on deposit accounts.", "label": "Service Charges on Deposit Accounts", "terseLabel": "Service charges on deposit accounts" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensation": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensation", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited": { "parentTag": "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 15.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Stock-based compensation", "label": "Share-Based Payment Arrangement, Noncash Expense", "totalLabel": "Share-Based Payment Arrangement, Noncash Expense, Total", "documentation": "Amount of noncash expense for share-based payment arrangement." } } }, "auth_ref": [ "r4" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Criteria period", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period", "documentation": "Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days." } } }, "auth_ref": [ "r959" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period", "terseLabel": "Restricted shares vesting period", "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition." } } }, "auth_ref": [ "r959" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Performance-based restricted stock units outstanding, forfeited/expired", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period", "negatedLabel": "Forfeited/expired", "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period." } } }, "auth_ref": [ "r427" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Weighted Average Grant Date Fair Value, Forfeited/expired", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value", "terseLabel": "Forfeited/expired", "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event." } } }, "auth_ref": [ "r427" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period", "verboseLabel": "Grants", "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan)." } } }, "auth_ref": [ "r425" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Weighted Average Grant Date Fair Value, Grants", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Grants", "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan)." } } }, "auth_ref": [ "r425" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number", "periodEndLabel": "Balance at end of period", "periodStartLabel": "Balance at beginning of period", "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date." } } }, "auth_ref": [ "r422", "r423" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value", "periodEndLabel": "Balance at end of period", "periodStartLabel": "Balance at beginning of period", "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options." } } }, "auth_ref": [ "r422", "r423" ] }, "ffin_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment": { "xbrltype": "sharesItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail" ], "lang": { "en-us": { "role": { "label": "Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Performance Adjustment", "documentation": "Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Performance Adjustment", "terseLabel": "Performance adjustment" } } }, "auth_ref": [] }, "ffin_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentInPeriodWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentInPeriodWeightedAverageGrantDateFairValue", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail" ], "lang": { "en-us": { "role": { "label": "Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Performance Adjustment In Period Weighted Average Grant Date Fair Value", "documentation": "Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Performance Adjustment In Period Weighted Average Grant Date Fair Value", "terseLabel": "Weighted Average Grant Date Fair Value, Performance Adjustment" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Performance-based restricted stock units outstanding, Vesting", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period", "negatedLabel": "Vesting", "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period." } } }, "auth_ref": [ "r426" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value", "terseLabel": "Total fair value of shares vested", "documentation": "Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash." } } }, "auth_ref": [ "r429" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationSummaryOfVestedAndUnvestedRestrictedStockOutstandingDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Weighted Average Grant Date Fair Value, Vesting", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Vesting", "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement." } } }, "auth_ref": [ "r426" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r408", "r409", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r433", "r434", "r435", "r436", "r437", "r442" ] }, "ffin_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAverageAdjustedEarningsPerShareGrowthPercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAverageAdjustedEarningsPerShareGrowthPercentage", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Average adjusted earnings per share growth percentage", "label": "Share Based Compensation Arrangement by Share Based Payment Award Number of Shares Average Adjusted Earnings Per Share Growth Percentage", "documentation": "Share based compensation arrangement by share based award number of shares average adjusted earnings per share growth percentage." } } }, "auth_ref": [] }, "ffin_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedUponVestingBasedOnCoreReturnPercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedUponVestingBasedOnCoreReturnPercentage", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Issued Upon Vesting Based On Core Return Percentage", "documentation": "Share based compensation arrangement by share based payment award number of shares issued upon vesting based on core return percentage.", "terseLabel": "Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Issued Upon Vesting Based On Core Return Percentage" } } }, "auth_ref": [] }, "ffin_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReturnOnAverageAssetsPercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReturnOnAverageAssetsPercentage", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Share Based Compensation Arrangement by Share Based Payment Award Number of Shares Return on Average Assets Percentage", "label": "Share Based Compensation Arrangement by Share Based Payment Award Number of Shares Return on Average Assets Percentage", "terseLabel": "Return on average assets" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number", "terseLabel": "Exercisable at end ofperiod, Shares", "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan." } } }, "auth_ref": [ "r416" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price", "terseLabel": "Exercisable at end of period, Weighted-Average Ex. Price", "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan." } } }, "auth_ref": [ "r416" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period", "negatedLabel": "Cancelled, Shares", "terseLabel": "Cancelled, Shares", "documentation": "The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan." } } }, "auth_ref": [ "r420" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Shares, Granted", "terseLabel": "Restricted stock units outstanding, grants", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross", "documentation": "Gross number of share options (or share units) granted during the period." } } }, "auth_ref": [ "r418" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number", "periodStartLabel": "Outstanding, beginning of period, Shares", "periodEndLabel": "Outstanding, end of period, Shares", "documentation": "Number of options outstanding, including both vested and non-vested options." } } }, "auth_ref": [ "r414", "r415" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price", "periodStartLabel": "Outstanding, beginning of period, Weighted-Average Ex. Price", "periodEndLabel": "Outstanding, end of period, Weighted-Average Ex. Price", "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan." } } }, "auth_ref": [ "r414", "r415" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf", "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails", "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "All Award Types", "terseLabel": "All Award Types", "documentation": "Award under share-based payment arrangement." } } }, "auth_ref": [ "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r433", "r434", "r435", "r436", "r437" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price", "terseLabel": "Exercised, Weighted-Average Ex. Price", "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares." } } }, "auth_ref": [ "r419" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price", "terseLabel": "Cancelled, Weighted-Average Ex. Price", "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated." } } }, "auth_ref": [ "r420" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Granted, Weighted-Average Ex. Price", "label": "Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price", "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options." } } }, "auth_ref": [ "r418" ] }, "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit", "terseLabel": "Stock options outstanding, exercise price range, lower", "documentation": "The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range." } } }, "auth_ref": [ "r34" ] }, "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit", "terseLabel": "Stock options outstanding, exercise price range, upper", "documentation": "The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range." } } }, "auth_ref": [ "r34" ] }, "ffin_ShareBasedPerfomanceAdjustmentAwardPayOut": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "ShareBasedPerfomanceAdjustmentAwardPayOut", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureShareBasedCompensationPerformanceBasedAdjustmentParentheticalDetails" ], "lang": { "en-us": { "role": { "documentation": "Share Based Perfomance Adjustment Award Pay Out", "label": "Share Based Perfomance Adjustment Award Pay Out", "terseLabel": "Share Based Perfomance Adjustment Award Pay Out" } } }, "auth_ref": [] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfChangesInStockUnitsParentheticalDetails" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage", "terseLabel": "Award pay out", "documentation": "Percentage of vesting of award under share-based payment arrangement." } } }, "auth_ref": [ "r1217" ] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Duration of options granted, years", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period", "documentation": "Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days." } } }, "auth_ref": [ "r960" ] }, "ffin_SharesAcquiredInConnectionWithDirectorsDeferredCompensationPlan": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "SharesAcquiredInConnectionWithDirectorsDeferredCompensationPlan", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_StockholdersEquity", "weight": -1.0, "order": 3.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "documentation": "Shares acquired in connection with directors deferred compensation plan.", "label": "Shares Acquired In Connection With Directors Deferred Compensation Plan", "negatedLabel": "TREASURY STOCK (shares at cost: 940,093 and 936,268 at March 31, 2026 and December 31, 2025, respectively)" } } }, "auth_ref": [] }, "us-gaap_ShortTermBorrowings": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShortTermBorrowings", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_Liabilities", "weight": 1.0, "order": 6.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "BORROWINGS", "totalLabel": "Total", "verboseLabel": "Borrowings", "label": "Short-Term Debt", "documentation": "Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer." } } }, "auth_ref": [ "r39", "r78", "r995", "r1291" ] }, "us-gaap_ShortTermDebtTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShortTermDebtTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreements" ], "lang": { "en-us": { "role": { "label": "Short-Term Debt [Text Block]", "verboseLabel": "Borrowings and Repurchase Agreements", "documentation": "The entire disclosure for short-term debt." } } }, "auth_ref": [ "r69" ] }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SignificantAccountingPoliciesTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPolicies" ], "lang": { "en-us": { "role": { "label": "Significant Accounting Policies [Text Block]", "terseLabel": "Summary of Significant Accounting Policies", "documentation": "The entire disclosure for all significant accounting policies of the reporting entity." } } }, "auth_ref": [ "r209", "r210" ] }, "us-gaap_SpecialMentionMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SpecialMentionMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "label": "Special Mention [Member]", "terseLabel": "Special Mention [Member]", "documentation": "A category of financing receivables considered to have potential weaknesses that deserve management's close attention. If left uncorrected, those potential weaknesses may result in a deterioration of the repayment prospects for the asset or of the creditor's position at some future date." } } }, "auth_ref": [ "r110", "r111", "r112", "r1196", "r1197" ] }, "us-gaap_StatementEquityComponentsAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StatementEquityComponentsAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Equity Components [Axis]", "terseLabel": "Equity Components [Axis]", "documentation": "Information by component of equity." } } }, "auth_ref": [ "r10", "r50", "r54", "r55", "r170", "r171", "r172", "r192", "r193", "r194", "r220", "r221", "r222", "r224", "r231", "r233", "r235", "r253", "r320", "r321", "r363", "r382", "r393", "r443", "r460", "r461", "r470", "r471", "r472", "r474", "r538", "r539", "r586", "r587", "r588", "r589", "r590", "r591", "r592", "r593", "r594", "r595", "r597", "r636", "r638", "r639", "r640", "r641", "r642", "r645", "r646", "r648", "r762", "r771", "r772", "r773", "r793", "r848" ] }, "srt_StatementGeographicalAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "StatementGeographicalAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Geographical [Axis]", "terseLabel": "Geographical [Axis]", "documentation": "Information by geographical components." } } }, "auth_ref": [ "r147", "r149", "r152", "r154", "r155", "r156", "r157", "r158", "r159", "r160", "r161", "r162", "r163", "r165", "r166", "r167", "r256", "r273", "r274", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r698", "r699", "r700", "r701", "r702", "r703", "r704", "r705", "r706", "r707", "r708", "r709", "r710", "r711", "r712", "r713", "r714", "r715", "r716", "r717", "r718", "r719", "r720", "r721", "r722", "r734", "r735", "r736", "r737", "r796", "r797", "r799", "r853", "r859", "r863", "r866", "r870", "r872", "r873", "r874", "r878", "r879", "r880", "r881", "r882", "r883", "r884", "r885", "r886", "r893", "r910", "r949", "r950", "r997", "r998", "r999", "r1000", "r1001", "r1002", "r1003", "r1004", "r1008", "r1016", "r1295", "r1297", "r1298", "r1299", "r1300", "r1301", "r1302", "r1303", "r1304", "r1305", "r1306", "r1307", "r1308", "r1309", "r1310", "r1311", "r1312", "r1313", "r1314", "r1315", "r1316", "r1317", "r1318", "r1319", "r1320", "r1321", "r1323", "r1324" ] }, "us-gaap_StatementLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StatementLineItems", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionTables", "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Statement [Line Items]", "terseLabel": "Statement [Line Items]", "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table." } } }, "auth_ref": [ "r220", "r221", "r222", "r253", "r384", "r385", "r387", "r389", "r646", "r688", "r782", "r794", "r795", "r802", "r803", "r804", "r805", "r806", "r807", "r811", "r814", "r815", "r816", "r817", "r818", "r820", "r821", "r822", "r823", "r825", "r826", "r827", "r828", "r829", "r832", "r833", "r834", "r835", "r836", "r837", "r838", "r839", "r840", "r841", "r842", "r843", "r844", "r845", "r848", "r903", "r905", "r1017", "r1328" ] }, "us-gaap_StatementOfCashFlowsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StatementOfCashFlowsAbstract", "lang": { "en-us": { "role": { "label": "Statement of Cash Flows [Abstract]" } } }, "auth_ref": [] }, "us-gaap_StatementOfFinancialPositionAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StatementOfFinancialPositionAbstract", "lang": { "en-us": { "role": { "label": "Statement of Financial Position [Abstract]" } } }, "auth_ref": [] }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "lang": { "en-us": { "role": { "label": "Statement of Comprehensive Income [Abstract]" } } }, "auth_ref": [] }, "us-gaap_StatementOfStockholdersEquityAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StatementOfStockholdersEquityAbstract", "lang": { "en-us": { "role": { "label": "Statement of Stockholders' Equity [Abstract]" } } }, "auth_ref": [] }, "us-gaap_StatementTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StatementTable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionTables", "http://www.ffin.com/20260331/taxonomy/role/ConsolidatedStatementsOfShareholdersEquityParenthetical", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Statement [Table]", "terseLabel": "Statement [Table]", "documentation": "Presentation of information about comprehensive income, income, other comprehensive income, financial position, cash flows, and shareholders' equity." } } }, "auth_ref": [ "r220", "r221", "r222", "r253", "r276", "r384", "r385", "r387", "r389", "r646", "r688", "r782", "r794", "r795", "r802", "r803", "r804", "r805", "r806", "r807", "r811", "r814", "r815", "r816", "r817", "r818", "r820", "r821", "r822", "r823", "r825", "r826", "r827", "r828", "r829", "r832", "r833", "r834", "r835", "r836", "r837", "r838", "r839", "r840", "r841", "r842", "r843", "r844", "r845", "r848", "r903", "r905", "r1017", "r1328" ] }, "ecd_StkPrcOrTsrEstimationMethodTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "StkPrcOrTsrEstimationMethodTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" ], "lang": { "en-us": { "role": { "label": "Stock Price or TSR Estimation Method [Text Block]", "terseLabel": "Stock Price or TSR Estimation Method" } } }, "auth_ref": [ "r1035", "r1045", "r1055", "r1087" ] }, "us-gaap_StockAppreciationRightsSARSMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StockAppreciationRightsSARSMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Stock Appreciation Rights (SARs) [Member]", "terseLabel": "Stock Appreciation Rights (SARs)", "documentation": "Right to receive cash or shares equal to appreciation of predetermined number of grantor's shares during predetermined time period." } } }, "auth_ref": [ "r1217", "r1218", "r1219", "r1220", "r1221", "r1222", "r1223", "r1224", "r1225", "r1226", "r1227", "r1228", "r1229", "r1230", "r1231", "r1232", "r1233", "r1234", "r1235", "r1236", "r1237", "r1238", "r1239", "r1240", "r1241", "r1242" ] }, "us-gaap_StockIssuedDuringPeriodSharesNewIssues": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StockIssuedDuringPeriodSharesNewIssues", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Stock option exercises/ stock unit conversions/ restricted stock activity (unaudited), Shares", "label": "Stock Issued During Period, Shares, New Issues", "documentation": "Number of new stock issued during the period." } } }, "auth_ref": [ "r10", "r49", "r50", "r70", "r787", "r848", "r867" ] }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationScheduleOfAnalysisOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period", "negatedLabel": "Exercised, Shares", "documentation": "Number of share options (or share units) exercised during the current period." } } }, "auth_ref": [ "r10", "r49", "r50", "r70", "r419" ] }, "us-gaap_StockIssuedDuringPeriodValueNewIssues": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StockIssuedDuringPeriodValueNewIssues", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "terseLabel": "Stock option exercises/ stock unit conversions/ restricted stock activity (unaudited)", "label": "Stock Issued During Period, Value, New Issues", "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering." } } }, "auth_ref": [ "r10", "r49", "r50", "r70", "r793", "r848", "r867", "r1024" ] }, "ffin_StockRepurchasePolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "StockRepurchasePolicyTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "documentation": "Stock repurchase.", "label": "Stock Repurchase [Policy Text Block]", "terseLabel": "Stock Repurchase" } } }, "auth_ref": [] }, "srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Stock repurchase program, number of shares authorized to be repurchased", "label": "Share Repurchase Program, Authorized, Number of Shares", "documentation": "Number of shares authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership." } } }, "auth_ref": [ "r1211" ] }, "us-gaap_StockRepurchasedDuringPeriodShares": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StockRepurchasedDuringPeriodShares", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Stock Repurchased During Period, Shares", "terseLabel": "Shares repurchased under stock repurchase authorization, shares", "verboseLabel": "Shares repurchased under stock repurchase authorization (unaudited), Shares", "documentation": "Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock." } } }, "auth_ref": [ "r10", "r49", "r50", "r70", "r788", "r848", "r868" ] }, "us-gaap_StockholdersEquity": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StockholdersEquity", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited": { "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited", "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Equity, Attributable to Parent", "periodEndLabel": "Ending Balance", "periodStartLabel": "Beginning Balance", "totalLabel": "Total shareholders' equity", "documentation": "Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest." } } }, "auth_ref": [ "r50", "r54", "r55", "r68", "r813", "r830", "r849", "r850", "r995", "r1025", "r1138", "r1141", "r1142", "r1183", "r1274", "r1329" ] }, "us-gaap_StockholdersEquityAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StockholdersEquityAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedBalanceSheetsUnaudited" ], "lang": { "en-us": { "role": { "label": "Equity, Attributable to Parent [Abstract]", "terseLabel": "SHAREHOLDERS' EQUITY:" } } }, "auth_ref": [] }, "us-gaap_SubsequentEventMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SubsequentEventMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Subsequent Event [Member]", "terseLabel": "Subsequent Event [Member]", "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued." } } }, "auth_ref": [ "r643", "r652" ] }, "us-gaap_SubsequentEventTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SubsequentEventTypeAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Subsequent Event Type [Axis]", "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued." } } }, "auth_ref": [ "r643", "r652" ] }, "us-gaap_SubsequentEventTypeDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SubsequentEventTypeDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Subsequent Event Type [Domain]", "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued." } } }, "auth_ref": [ "r643", "r652" ] }, "us-gaap_SubsequentEventsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SubsequentEventsAbstract", "lang": { "en-us": { "role": { "label": "Subsequent Events [Abstract]" } } }, "auth_ref": [] }, "us-gaap_SubsequentEventsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SubsequentEventsTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureSubsequentEvent" ], "lang": { "en-us": { "role": { "label": "Subsequent Events [Text Block]", "terseLabel": "Subsequent Event", "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business." } } }, "auth_ref": [ "r651", "r653" ] }, "us-gaap_SubsidiaryOfCommonParentMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SubsidiaryOfCommonParentMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "FFB Paris Investment Fund, LLC [Member]", "label": "Subsidiary of Common Parent [Member]", "documentation": "Refers to an entity under the control of the same parent as another entity (that is, a sister company)." } } }, "auth_ref": [] }, "us-gaap_SubstandardMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SubstandardMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysInternalRatingsOfItsLoansHeldforinvestmentIncludingTheYearOf" ], "lang": { "en-us": { "role": { "terseLabel": "Substandard [Member]", "label": "Substandard [Member]", "documentation": "A category of financing receivables that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the creditor will sustain some loss if the deficiencies are not corrected." } } }, "auth_ref": [ "r110", "r111", "r112", "r1196", "r1197" ] }, "us-gaap_SupplementalCashFlowInformationAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "SupplementalCashFlowInformationAbstract", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited" ], "lang": { "en-us": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "verboseLabel": "SUPPLEMENTAL INFORMATION AND NONCASH TRANSACTIONS:" } } }, "auth_ref": [] }, "stpr_TX": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "TX", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Texas [Member]", "label": "TEXAS" } } }, "auth_ref": [] }, "ecd_TabularListTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TabularListTableTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Tabular List [Table Text Block]", "terseLabel": "Tabular List, Table" } } }, "auth_ref": [ "r1081" ] }, "ffin_TaxCutsAndJobsActMeasurementPeriodAdjustmentIncreaseDecreaseInEffectiveTaxRate": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TaxCutsAndJobsActMeasurementPeriodAdjustmentIncreaseDecreaseInEffectiveTaxRate", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Tax Cuts and Jobs Act, Measurement Period Adjustment, Increase (Decrease) in Effective Tax Rate", "documentation": "Tax Cuts and Jobs Act, Measurement Period Adjustment, Increase (Decrease) in Effective Tax Rate", "terseLabel": "Tax Benefit Percent of Qualified Investments" } } }, "auth_ref": [] }, "ffin_TbTBancsharesIncorporationAndTheBankTrustOfBryanCollegeStationTexasMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TbTBancsharesIncorporationAndTheBankTrustOfBryanCollegeStationTexasMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/AcquisitionAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfAmountsRecordedOnConsolidatedBalanceSheetOnAcquisitionDateParentheticalDetail", "http://www.ffin.com/20260331/taxonomy/role/AcquisitionScheduleOfPreliminaryEstimatedFairValueAmountsAssignedToMajorAssetAndLiabilityCategoriesAtAcquisitionDateDetail" ], "lang": { "en-us": { "role": { "terseLabel": "TB&T Bancshares, Inc. and The Bank & Trust of Bryan College Station, Texas [Member]", "label": "TB&T Bancshares, Incorporation And The Bank & Trust of Bryan College Station, Texas [Member]", "documentation": "TB&T Bancshares, Incorporation And The Bank & Trust of Bryan College Station, Texas [Member]" } } }, "auth_ref": [] }, "us-gaap_TimeDeposits": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "TimeDeposits", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail" ], "lang": { "en-us": { "role": { "label": "Time Deposits", "totalLabel": "Time Deposits, Total", "terseLabel": "Deposits with stated maturities", "documentation": "Amount of time deposit liabilities, including certificates of deposit." } } }, "auth_ref": [ "r8", "r76" ] }, "srt_TitleOfIndividualAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "TitleOfIndividualAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Title and Position [Axis]", "terseLabel": "Title of Individual [Axis]", "documentation": "Information by title and position of individual or group within organization." } } }, "auth_ref": [ "r1161", "r1277" ] }, "srt_TitleOfIndividualWithRelationshipToEntityDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "TitleOfIndividualWithRelationshipToEntityDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Title and Position [Domain]", "terseLabel": "Relationship to Entity [Domain]", "documentation": "Title and position of individual or group within organization." } } }, "auth_ref": [] }, "ffin_TotalAllowanceForCreditLossesOnLoansIndividuallyEvaluatedForCreditLosses": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TotalAllowanceForCreditLossesOnLoansIndividuallyEvaluatedForCreditLosses", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "documentation": "Total Allowance for Credit Losses on Loans Individually Evaluated for Credit Losses", "label": "Total Allowance for Credit Losses on Loans Individually Evaluated for Credit Losses", "terseLabel": "Total Allowance for Credit Losses on Loans Individually Evaluated for Credit Losses" } } }, "auth_ref": [] }, "ffin_TotalBorrowings": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TotalBorrowings", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureBorrowingsAndRepurchaseAgreementsScheduleOfBorrowingsDetail" ], "lang": { "en-us": { "role": { "documentation": "Total Borrowings", "label": "Total Borrowings", "totalLabel": "Total" } } }, "auth_ref": [] }, "ffin_TotalChargeOffsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TotalChargeOffsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfCompanysGrossChargeoffsByOriginationYearAndLoanClassDetail" ], "lang": { "en-us": { "role": { "label": "Total Charge Offs [Member]", "documentation": "Total Charge Offs [Member]", "terseLabel": "Total Charge-Offs" } } }, "auth_ref": [] }, "ffin_TotalClassOfFinancingReceivable": { "xbrltype": "percentItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TotalClassOfFinancingReceivable", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfComparedToTheAmortizedCostBasisOfEachClassOfFinancingReceivablesDet" ], "lang": { "en-us": { "role": { "documentation": "Total Class of Financing Receivable", "label": "Total Class of Financing Receivable", "terseLabel": "% Total Class of Financing Receivable" } } }, "auth_ref": [] }, "ecd_TotalShareholderRtnAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TotalShareholderRtnAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Total Shareholder Return Amount", "terseLabel": "Total Shareholder Return Amount" } } }, "auth_ref": [ "r1073" ] }, "ecd_TotalShareholderRtnVsPeerGroupTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TotalShareholderRtnVsPeerGroupTextBlock", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Total Shareholder Return Vs Peer Group [Text Block]", "terseLabel": "Total Shareholder Return Vs Peer Group" } } }, "auth_ref": [ "r1080" ] }, "ecd_TradingArrAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TradingArrAxis", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement [Axis]", "terseLabel": "Trading Arrangement:" } } }, "auth_ref": [ "r1100" ] }, "ecd_TradingArrByIndTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TradingArrByIndTable", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangements, by Individual [Table]", "terseLabel": "Trading Arrangements, by Individual" } } }, "auth_ref": [ "r1102" ] }, "dei_TradingSymbol": { "xbrltype": "tradingSymbolItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "TradingSymbol", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/CoverPage" ], "lang": { "en-us": { "role": { "label": "Trading Symbol", "documentation": "Trading symbol of an instrument as listed on an exchange." } } }, "auth_ref": [] }, "us-gaap_TransferToOtherRealEstate": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "TransferToOtherRealEstate", "crdr": "debit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Transfer of loans to other real estate", "label": "Real Estate Owned, Transfer to Real Estate Owned", "terseLabel": "Real state owned", "documentation": "Value transferred from mortgage loans to real estate owned (REO) in noncash transactions." } } }, "auth_ref": [ "r25", "r26", "r27" ] }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DerivativeFinancialInstrumentsSummaryOfOutstandingNotionalBalancesAndFairValuesOfOutstandingDerivativePositionsDetail", "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresScheduleOfEstimatedFairValuesAndCarryingValuesOfAllFinancialInstrumentsDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Financial Instruments [Domain]", "terseLabel": "Financial Instruments [Domain]", "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms." } } }, "auth_ref": [ "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298", "r299", "r300", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r311", "r312", "r313", "r314", "r315", "r316", "r381", "r392", "r584", "r596", "r622", "r632", "r635", "r654", "r655", "r656", "r657", "r658", "r659", "r660", "r661", "r662", "r663", "r664", "r665", "r666", "r667", "r670", "r672", "r673", "r674", "r675", "r676", "r677", "r678", "r679", "r680", "r681", "r682", "r683", "r684", "r685", "r686", "r744", "r763", "r984", "r986", "r987", "r988", "r989", "r990", "r991", "r992", "r993", "r996", "r1114", "r1115", "r1116", "r1117", "r1118", "r1119", "r1120", "r1179", "r1180", "r1181", "r1182", "r1261", "r1264", "r1265", "r1266", "r1267", "r1268", "r1269", "r1270" ] }, "ecd_TrdArrAdoptionDate": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TrdArrAdoptionDate", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement Adoption Date", "terseLabel": "Adoption Date" } } }, "auth_ref": [ "r1103" ] }, "ecd_TrdArrDuration": { "xbrltype": "durationItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TrdArrDuration", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement Duration", "terseLabel": "Arrangement Duration" } } }, "auth_ref": [ "r1104" ] }, "ecd_TrdArrExpirationDate": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TrdArrExpirationDate", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement Expiration Date", "terseLabel": "Expiration Date" } } }, "auth_ref": [ "r1104" ] }, "ecd_TrdArrIndName": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TrdArrIndName", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement, Individual Name", "terseLabel": "Name" } } }, "auth_ref": [ "r1102" ] }, "ecd_TrdArrIndTitle": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TrdArrIndTitle", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement, Individual Title", "terseLabel": "Title" } } }, "auth_ref": [ "r1102" ] }, "ecd_TrdArrSecuritiesAggAvailAmt": { "xbrltype": "sharesItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TrdArrSecuritiesAggAvailAmt", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement, Securities Aggregate Available Amount", "terseLabel": "Aggregate Available" } } }, "auth_ref": [ "r1105" ] }, "ecd_TrdArrTerminationDate": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "TrdArrTerminationDate", "presentation": [ "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" ], "lang": { "en-us": { "role": { "label": "Trading Arrangement Termination Date", "terseLabel": "Termination Date" } } }, "auth_ref": [ "r1103" ] }, "us-gaap_TreasuryStockAcquiredAverageCostPerShare": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "TreasuryStockAcquiredAverageCostPerShare", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Shares repurchased and retired average price", "label": "Shares Acquired, Average Cost Per Share", "documentation": "Total cost of shares repurchased divided by the total number of shares repurchased." } } }, "auth_ref": [ "r30" ] }, "us-gaap_TreasuryStockCommonMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "TreasuryStockCommonMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfShareholdersEquityUnaudited" ], "lang": { "en-us": { "role": { "label": "Treasury Stock, Common [Member]", "terseLabel": "Treasury Stock [Member]", "documentation": "Previously issued common shares repurchased by the issuing entity and held in treasury." } } }, "auth_ref": [ "r30" ] }, "us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesTables" ], "lang": { "en-us": { "role": { "label": "Financing Receivable, Modified [Table Text Block]", "terseLabel": "Schedule of Loans Modified and Considered Troubled Debt Restructurings", "documentation": "Tabular disclosure of financing receivable modified for debtor experiencing financial difficulty." } } }, "auth_ref": [ "r113", "r114", "r919", "r1163", "r1164" ] }, "ffin_TrustFees": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TrustFees", "crdr": "credit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited": { "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0, "order": 12.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/StatementConsolidatedStatementsOfEarningsUnaudited" ], "lang": { "en-us": { "role": { "label": "Trust Fees", "documentation": "It represents the amount of trust fees received.", "terseLabel": "Trust fees" } } }, "auth_ref": [] }, "ffin_TwoThousandTwentyOneOmnibusStockAndIncentivePlanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TwoThousandTwentyOneOmnibusStockAndIncentivePlanMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Two Thousand Twenty One Omnibus Stock and Incentive Plan.", "label": "Two Thousand Twenty One Omnibus Stock and Incentive Plan [Member]", "terseLabel": "Two Thousand Twenty One Omnibus Stock and Incentive Plan [Member]" } } }, "auth_ref": [] }, "ffin_TwoThousandTwentyOnePlanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "TwoThousandTwentyOnePlanMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "2021 Plan [Member]", "label": "Two Thousand Twenty One Plan [Member]", "documentation": "2021 Plan" } } }, "auth_ref": [] }, "us-gaap_USStatesAndPoliticalSubdivisionsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "USStatesAndPoliticalSubdivisionsMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesAdditionalInformationDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "US States and Political Subdivisions Debt Securities [Member]", "terseLabel": "Obligations of State and Political Subdivisions [Member]", "documentation": "Bonds or similar securities issued by state, city, or local US governments or the agencies operated by state, city, or local governments. Debt securities issued by state governments may include bond issuances of US state authorities including, for example, but not limited to, housing authorities, dormitory authorities, and general obligations while debt securities issued by political subdivisions of US states would include, for example, debt issuances by county, borough, city, or municipal governments." } } }, "auth_ref": [ "r951", "r953", "r996", "r1012", "r1322" ] }, "us-gaap_USTreasurySecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "USTreasurySecuritiesMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesContinuousUnrealizedLossPositionOfAvailableForSaleSecuritiesDetail", "http://www.ffin.com/20260331/taxonomy/role/SecuritiesSummaryOfAvailableForSaleSecuritiesDetail" ], "lang": { "en-us": { "role": { "label": "US Treasury Securities [Member]", "terseLabel": "U.S. Treasury Securities [Member]", "verboseLabel": "U.S. Treasury securities [Member]", "documentation": "This category includes information about debt securities issued by the United States Department of the Treasury and backed by the United States government. Such securities primarily consist of treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), and treasury bonds (long-term maturities - ten to thirty years)." } } }, "auth_ref": [ "r907", "r908", "r951", "r953", "r955", "r984", "r1289" ] }, "us-gaap_UncollateralizedMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "UncollateralizedMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfLoansThatAreIndividuallyEvaluatedForCreditLossesDetail" ], "lang": { "en-us": { "role": { "label": "Uncollateralized [Member]", "terseLabel": "Uncollateralized [Member]", "documentation": "No pledge of specific property to serve as protection or security against default." } } }, "auth_ref": [ "r934" ] }, "us-gaap_UnderlyingAssetClassAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "UnderlyingAssetClassAxis", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Underlying Asset Class [Axis]", "terseLabel": "Underlying Asset Class [Axis]", "documentation": "Information by underlying asset class." } } }, "auth_ref": [ "r978" ] }, "us-gaap_UnderlyingAssetClassDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "UnderlyingAssetClassDomain", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Underlying Asset Class [Domain]", "terseLabel": "Underlying Asset Class [Domain]", "documentation": "Major types of referenced/underlying asset classes (for example, corporate debt, sovereign debt, and structured finance)." } } }, "auth_ref": [ "r978" ] }, "ffin_UndisbursedCommitments": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "UndisbursedCommitments", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Undisbursed commitments", "label": "Undisbursed Commitments", "documentation": "Undisbursed commitments." } } }, "auth_ref": [] }, "ecd_UndrlygSecurityMktPriceChngPct": { "xbrltype": "pureItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "UndrlygSecurityMktPriceChngPct", "presentation": [ "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" ], "lang": { "en-us": { "role": { "label": "Underlying Security Market Price Change, Percent", "terseLabel": "Underlying Security Market Price Change" } } }, "auth_ref": [ "r1099" ] }, "ffin_UnfundedContingentCommitments": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "UnfundedContingentCommitments", "crdr": "credit", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/IncomeTaxesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Unfunded contingent commitments", "label": "Unfunded Contingent Commitments", "documentation": "Unfunded Contingent Commitments" } } }, "auth_ref": [] }, "us-gaap_UnfundedLoanCommitmentMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "UnfundedLoanCommitmentMember", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Unfunded Loan Commitment [Member]", "terseLabel": "Unfunded Loan Commitment [Member]", "documentation": "Undisbursed funds of a credit facility in which the borrower may draw upon." } } }, "auth_ref": [ "r1162" ] }, "ffin_UnpaidPrincipalBalanceOnLoansHeldForSale": { "xbrltype": "monetaryItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "UnpaidPrincipalBalanceOnLoansHeldForSale", "crdr": "debit", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresSummaryOfLoansHeldForSaleAtFairValueDetail": { "parentTag": "us-gaap_LoansHeldForSaleFairValueDisclosure", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/FairValueDisclosuresSummaryOfLoansHeldForSaleAtFairValueDetail" ], "lang": { "en-us": { "role": { "documentation": "Unpaid principal balance on loans held-for-sale.", "label": "Unpaid Principal Balance On Loans Held For Sale", "terseLabel": "Unpaid principal balance on loans held-for-sale" } } }, "auth_ref": [] }, "us-gaap_UseOfEstimates": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "UseOfEstimates", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Use of Estimates, Policy [Policy Text Block]", "terseLabel": "Use of Estimates", "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles." } } }, "auth_ref": [ "r134", "r135", "r254", "r257", "r258", "r259", "r734", "r736", "r911" ] }, "ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]", "terseLabel": "Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year" } } }, "auth_ref": [ "r1069" ] }, "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail3": { "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Weighted Average Number Diluted Shares Outstanding Adjustment, Total", "label": "Weighted Average Number of Shares Outstanding, Diluted, Adjustment", "terseLabel": "Effect of stock options and stock grants, Weighted Average Shares", "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation." } } }, "auth_ref": [ "r1148" ] }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail3": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "label": "Weighted Average Number of Shares Outstanding, Diluted", "totalLabel": "Net earnings per share, diluted, Weighted Average Shares", "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period." } } }, "auth_ref": [ "r238", "r248" ] }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "calculation": { "http://www.ffin.com/20260331/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail3": { "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/SummaryOfSignificantAccountingPoliciesComputationOfBasicEpsToDilutiveEpsDetail" ], "lang": { "en-us": { "role": { "totalLabel": "Weighted Average Number of Shares Outstanding, Basic, Total", "label": "Weighted Average Number of Shares Outstanding, Basic", "terseLabel": "Net earnings per share, basic, Weighted Average Shares", "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period." } } }, "auth_ref": [ "r236", "r248" ] }, "ffin_WeightedAverageTermExtension": { "xbrltype": "durationItemType", "nsuri": "http://www.ffin.com/20260331", "localname": "WeightedAverageTermExtension", "presentation": [ "http://www.ffin.com/20260331/taxonomy/role/DisclosureLoansHeldforinvestmentAndAllowanceForCreditLossesScheduleOfFinancialEffectLoanModificationsPresentedDetail" ], "lang": { "en-us": { "role": { "documentation": "Weighted-Average Term Extension", "label": "Weighted-Average Term Extension", "terseLabel": "Weighted-AverageTerm Extension" } } }, "auth_ref": [] }, "ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/ecd/2025", "localname": "YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember", "presentation": [ "http://xbrl.sec.gov/ecd/role/PvpDisclosure" ], "lang": { "en-us": { "role": { "label": "Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]", "terseLabel": "Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested" } } }, "auth_ref": [ "r1067" ] } } } }, "std_ref": { "r0": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "SubTopic": "230", "Topic": "830", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477401/830-230-45-1" }, "r1": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10A", "SubTopic": "10", "Topic": "220", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A" }, "r2": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "12", "SubTopic": "10", "Topic": "220", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-12" }, "r3": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "14", "Subparagraph": "(a)", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-14" }, "r4": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(a)", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28" }, "r5": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(b)", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28" }, "r6": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "SubTopic": "10", "Topic": "360", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482099/360-10-50-1" }, "r7": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "SubTopic": "10", "Topic": "470", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481544/470-10-50-1" }, "r8": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "SubTopic": "405", "Topic": "942", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478353/942-405-50-1" }, "r9": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(c)(3)", "SubTopic": "10", "Topic": "810", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-1A" }, "r10": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "SubTopic": "10", "Topic": "505", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-2" }, "r11": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "SubTopic": "10", "Topic": "718", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r12": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)", "SubTopic": "10", "Topic": "718", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r13": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2A", "Subparagraph": "(a)", "SubTopic": "10", "Topic": "718", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2A" }, "r14": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4D", "Subparagraph": "(c)(2)", "SubTopic": "20", "Topic": "860", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4D" }, "r15": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "SubTopic": "10", "Topic": "320", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-8" }, "r16": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(22))", "SubTopic": "10", "Topic": "210", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r17": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "220", "SubTopic": "10", "Section": "45", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-14" }, "r18": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "220", "SubTopic": "10", "Section": "45", "Paragraph": "14A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-14A" }, "r19": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "220", "SubTopic": "10", "Section": "45", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-5" }, "r20": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "12", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-12" }, "r21": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "13", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-13" }, "r22": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-4" }, "r23": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-8" }, "r24": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-2" }, "r25": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-3" }, "r26": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-4" }, "r27": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-5" }, "r28": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "260", "SubTopic": "10", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1" }, "r29": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "260", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-2" }, "r30": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "30", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481549/505-30-45-1" }, "r31": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "30", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481520/505-30-50-2" }, "r32": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "30", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481520/505-30-50-3" }, "r33": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "30", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481520/505-30-50-4" }, "r34": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Subparagraph": "(g)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r35": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Subparagraph": "(l)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r36": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "810", "SubTopic": "10", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-1" }, "r37": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "942", "SubTopic": "210", "Section": "45", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477263/942-210-45-4" }, "r38": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(19)(a)(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r39": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(19)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r40": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(19)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r41": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(19))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r42": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(20))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r43": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(21))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r44": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(22)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r45": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(23))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r46": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(24))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r47": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(25))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r48": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(26))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r49": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(28))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r50": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(29))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r51": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r52": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30)(a)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r53": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r54": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r55": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(31))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r56": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(32))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r57": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r58": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-11" }, "r59": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(10))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r60": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(20))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r61": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r62": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r63": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "15", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-15" }, "r64": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-24" }, "r65": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-25" }, "r66": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-25" }, "r67": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28" }, "r68": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SAB Topic 4.E)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480418/310-10-S99-2" }, "r69": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "470", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/470/tableOfContent" }, "r70": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.3-04)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480008/505-10-S99-1" }, "r71": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r72": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r73": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r74": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(10))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r75": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(11))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r76": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(12))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r77": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(13)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r78": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(13))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r79": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(15)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r80": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(15))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r81": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(16))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r82": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r83": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r84": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(23))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r85": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r86": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r87": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(11))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r88": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(12))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r89": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(13))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r90": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(14)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r91": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(14))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r92": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(15))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r93": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r94": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(22))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r95": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r96": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r97": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r98": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r99": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32" }, "r100": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32" }, "r101": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-2" }, "r102": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11B", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-11B" }, "r103": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11B", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-11B" }, "r104": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14A", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-14A" }, "r105": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "15", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-15" }, "r106": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "15", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-15" }, "r107": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "15", "Subparagraph": "(a)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-15" }, "r108": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "15", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-15" }, "r109": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-17" }, "r110": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-29" }, "r111": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-29" }, "r112": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-29" }, "r113": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "33", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-33" }, "r114": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "34", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-34" }, "r115": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-7" }, "r116": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-7" }, "r117": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-7" }, "r118": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-7A" }, "r119": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "40", "Paragraph": "7A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481774/310-40-40-7A" }, "r120": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "310", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481746/310-40-50-4" }, "r121": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-6" }, "r122": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-6" }, "r123": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-6" }, "r124": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-6" }, "r125": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-7" }, "r126": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-8B" }, "r127": { "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef", "Topic": "840", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481161/840-30-50-1" }, "r128": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "SubTopic": "310", "Topic": "944", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477409/944-310-45-1" }, "r129": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "13", "Subparagraph": "(c)", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-13" }, "r130": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "SubTopic": "310", "Topic": "944", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477409/944-310-45-2" }, "r131": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Subparagraph": "(a)", "SubTopic": "20", "Topic": "740", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482659/740-20-45-2" }, "r132": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "21", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-21" }, "r133": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "SubTopic": "310", "Topic": "944", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477363/944-310-50-1" }, "r134": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "SubTopic": "10", "Topic": "275", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-1" }, "r135": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "SubTopic": "10", "Topic": "275", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-1" }, "r136": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(h))", "SubTopic": "10", "Topic": "235", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r137": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "a", "Publisher": "SEC" }, "r138": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "b", "Subparagraph": "(1)(Instruction 4)", "Publisher": "SEC" }, "r139": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1404", "Paragraph": "a", "Publisher": "SEC" }, "r140": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1404", "Paragraph": "b", "Publisher": "SEC" }, "r141": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "a", "Subparagraph": "(1)", "Publisher": "SEC" }, "r142": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "a", "Subparagraph": "(2)", "Publisher": "SEC" }, "r143": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "a", "Subparagraph": "(3)", "Publisher": "SEC" }, "r144": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "a", "Subparagraph": "(4)", "Publisher": "SEC" }, "r145": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "c", "Publisher": "SEC" }, "r146": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "12", "Paragraph": "Column A", "Footnote": "2", "Publisher": "SEC" }, "r147": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "12", "Paragraph": "Column C", "Footnote": "5", "Publisher": "SEC" }, "r148": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "12A", "Paragraph": "Column A", "Footnote": "2", "Publisher": "SEC" }, "r149": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "12A", "Paragraph": "Column C", "Footnote": "4", "Publisher": "SEC" }, "r150": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "12B", "Paragraph": "Column A", "Subparagraph": "(a)", "Footnote": "4", "Publisher": "SEC" }, "r151": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "12B", "Paragraph": "Column A", "Subparagraph": "(b)", "Footnote": "4", "Publisher": "SEC" }, "r152": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "12B", "Paragraph": "Column C", "Footnote": "2", "Publisher": "SEC" }, "r153": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "14", "Paragraph": "Column A", "Footnote": "2", "Publisher": "SEC" }, "r154": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "14", "Paragraph": "Column F", "Footnote": "7", "Publisher": "SEC" }, "r155": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column A", "Footnote": "2", "Publisher": "SEC" }, "r156": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column B", "Publisher": "SEC" }, "r157": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column C", "Publisher": "SEC" }, "r158": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column D", "Publisher": "SEC" }, "r159": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column E", "Publisher": "SEC" }, "r160": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column F", "Publisher": "SEC" }, "r161": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column G", "Publisher": "SEC" }, "r162": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column H", "Publisher": "SEC" }, "r163": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "28", "Paragraph": "Column I", "Publisher": "SEC" }, "r164": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "29", "Paragraph": "Column A", "Footnote": "3", "Publisher": "SEC" }, "r165": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "29", "Paragraph": "Column A", "Footnote": "4", "Publisher": "SEC" }, "r166": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "29", "Paragraph": "Column B", "Publisher": "SEC" }, "r167": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "12", "Subsection": "29", "Paragraph": "Column C", "Publisher": "SEC" }, "r168": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Staff Accounting Bulletin (SAB)", "Number": "Topic 5", "Section": "Y", "Paragraph": "Question 2", "Publisher": "SEC" }, "r169": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Staff Accounting Bulletin (SAB)", "Number": "Topic 5", "Section": "Y", "Paragraph": "Question 4", "Publisher": "SEC" }, "r170": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "105", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-6" }, "r171": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "105", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "9", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-9" }, "r172": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "105", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "9", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-9" }, "r173": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "205", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483504/205-10-50-1" }, "r174": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "205", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483499/205-20-50-7" }, "r175": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(15))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r176": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r177": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(18))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r178": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(3)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r179": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30)(a)(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r180": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r181": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483466/210-20-50-3" }, "r182": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483466/210-20-50-3" }, "r183": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-10" }, "r184": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10A", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A" }, "r185": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10A", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A" }, "r186": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-11" }, "r187": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1A" }, "r188": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1A" }, "r189": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1B" }, "r190": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1B", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1B" }, "r191": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-1" }, "r192": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-4" }, "r193": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-5" }, "r194": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-6" }, "r195": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(21))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r196": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(24))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r197": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(25))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r198": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "5", "Subparagraph": "(SAB Topic 6.B)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-5" }, "r199": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476148/220-40-50-22" }, "r200": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476148/220-40-50-6" }, "r201": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-11" }, "r202": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "12", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-12" }, "r203": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "17", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-17" }, "r204": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-2" }, "r205": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-24" }, "r206": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-25" }, "r207": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-2" }, "r208": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-8" }, "r209": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/235/tableOfContent" }, "r210": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483426/235-10-50-1" }, "r211": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480738/235-10-S50-1" }, "r212": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r213": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(g)(1)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r214": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r215": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(h)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r216": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(k)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r217": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(k)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r218": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(m)(1)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r219": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(m)(1)(ii)(A)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r220": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "23", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-23" }, "r221": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-24" }, "r222": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-5" }, "r223": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1" }, "r224": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1" }, "r225": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1" }, "r226": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1" }, "r227": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-11" }, "r228": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-11" }, "r229": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-3" }, "r230": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-4" }, "r231": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-6" }, "r232": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-7" }, "r233": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-7" }, "r234": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-8" }, "r235": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-9" }, "r236": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-10" }, "r237": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-11" }, "r238": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "16", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-16" }, "r239": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-2" }, "r240": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "40", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40" }, "r241": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "40", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40" }, "r242": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "40", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40" }, "r243": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "40", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40" }, "r244": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "60B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-60B" }, "r245": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "60B", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-60B" }, "r246": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "60B", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-60B" }, "r247": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-7" }, "r248": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1" }, "r249": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1" }, "r250": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1" }, "r251": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482635/260-10-55-15" }, "r252": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "270", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482964/270-10-50-1" }, "r253": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "272", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483014/272-10-45-1" }, "r254": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-12" }, "r255": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "20", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-20" }, "r256": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "20", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-20" }, "r257": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-4" }, "r258": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-6" }, "r259": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-9" }, "r260": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22" }, "r261": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22" }, "r262": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22" }, "r263": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-29" }, "r264": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-29" }, "r265": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-29" }, "r266": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-29" }, "r267": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-29" }, "r268": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-29" }, "r269": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-29" }, "r270": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "30", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-30" }, "r271": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(ee)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32" }, "r272": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "36", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-36" }, "r273": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "41", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-41" }, "r274": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "41", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-41" }, "r275": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "42", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-42" }, "r276": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-13" }, "r277": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-2" }, "r278": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-3" }, "r279": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-11" }, "r280": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11C", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-11C" }, "r281": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "42", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42" }, "r282": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "42", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42" }, "r283": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "42", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42" }, "r284": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "44", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-44" }, "r285": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481830/320-10-45-1" }, "r286": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481830/320-10-45-11" }, "r287": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r288": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r289": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(aa)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r290": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(aaa)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r291": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r292": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r293": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r294": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r295": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r296": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r297": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r298": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r299": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r300": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r301": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(aaa)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r302": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r303": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r304": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r305": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r306": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r307": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r308": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r309": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A" }, "r310": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5A", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A" }, "r311": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A" }, "r312": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B" }, "r313": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B" }, "r314": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B" }, "r315": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B" }, "r316": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B" }, "r317": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-9" }, "r318": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-9" }, "r319": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "323", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481687/323-10-50-3" }, "r320": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "4", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-4" }, "r321": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "5", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-5" }, "r322": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479344/326-20-45-1" }, "r323": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479344/326-20-45-2" }, "r324": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-11" }, "r325": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-11" }, "r326": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r327": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r328": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r329": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r330": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r331": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r332": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r333": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-14" }, "r334": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "16", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16" }, "r335": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "16", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16" }, "r336": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "16", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16" }, "r337": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5" }, "r338": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5" }, "r339": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-6" }, "r340": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479130/326-30-45-1" }, "r341": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-4" }, "r342": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-4" }, "r343": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-4" }, "r344": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-4" }, "r345": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-5" }, "r346": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-7" }, "r347": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-9" }, "r348": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-9" }, "r349": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-9" }, "r350": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482598/350-20-45-1" }, "r351": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482598/350-20-45-2" }, "r352": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1" }, "r353": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-2" }, "r354": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-4" }, "r355": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-6" }, "r356": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482686/350-30-45-2" }, "r357": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1" }, "r358": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1" }, "r359": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1" }, "r360": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1" }, "r361": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1" }, "r362": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2" }, "r363": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "350", "SubTopic": "60", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476166/350-60-65-1" }, "r364": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "405", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477092/405-40-50-1" }, "r365": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483076/450-20-50-4" }, "r366": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483076/450-20-50-9" }, "r367": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 5.Y.Q2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480102/450-20-S99-1" }, "r368": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 5.Y.Q4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480102/450-20-S99-1" }, "r369": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "460", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482454/460-10-45-1" }, "r370": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481544/470-10-50-6" }, "r371": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A" }, "r372": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A" }, "r373": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(iv))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A" }, "r374": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A" }, "r375": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B" }, "r376": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B" }, "r377": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B" }, "r378": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(iv))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B" }, "r379": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B" }, "r380": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1D", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1D" }, "r381": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1I", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1I" }, "r382": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "4", "Subparagraph": "(f)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481538/470-20-65-4" }, "r383": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "4", "Subparagraph": "(f)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481538/470-20-65-4" }, "r384": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479887/480-10-S45-1" }, "r385": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479887/480-10-S45-2" }, "r386": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S45", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479887/480-10-S45-3" }, "r387": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479857/480-10-S50-1" }, "r388": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479857/480-10-S50-3" }, "r389": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480244/480-10-S99-1" }, "r390": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(01)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480244/480-10-S99-1" }, "r391": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3A", "Subparagraph": "(24)(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480244/480-10-S99-3A" }, "r392": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-18" }, "r393": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.3-04)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480008/505-10-S99-1" }, "r394": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r395": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r396": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r397": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)(A)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r398": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)(B)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r399": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)(C)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r400": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r401": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(n)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r402": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r403": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(iv)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r404": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(iv)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r405": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(l)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r406": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-5" }, "r407": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/718/tableOfContent" }, "r408": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "1D", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480483/718-10-35-1D" }, "r409": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480483/718-10-35-3" }, "r410": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r411": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r412": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r413": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r414": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r415": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r416": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r417": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r418": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r419": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r420": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r421": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(04)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r422": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r423": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r424": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r425": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r426": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r427": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r428": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r429": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r430": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r431": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r432": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r433": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r434": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r435": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r436": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r437": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(v)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r438": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r439": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r440": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r441": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r442": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(l)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r443": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "17", "Subparagraph": "(d)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480336/718-10-65-17" }, "r444": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479983/718-10-S45-1" }, "r445": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 14.F)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479830/718-10-S99-1" }, "r446": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "720", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483359/720-20-50-1" }, "r447": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/740/tableOfContent" }, "r448": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482525/740-10-45-25" }, "r449": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482525/740-10-45-28" }, "r450": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-10" }, "r451": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-12" }, "r452": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "12B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-12B" }, "r453": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "12C", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-12C" }, "r454": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-14" }, "r455": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "17", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-17" }, "r456": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "19", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-19" }, "r457": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "20", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-20" }, "r458": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "21", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-21" }, "r459": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-9" }, "r460": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "8", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482615/740-10-65-8" }, "r461": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "8", "Subparagraph": "(d)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482615/740-10-65-8" }, "r462": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 6.I.1.Q1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479360/740-10-S99-1" }, "r463": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 6.I.5.Q1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479360/740-10-S99-1" }, "r464": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 6.I.7)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479360/740-10-S99-1" }, "r465": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SAB Topic 11.C)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479360/740-10-S99-2" }, "r466": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482659/740-20-45-11" }, "r467": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482659/740-20-45-2" }, "r468": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "270", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477891/740-270-50-1" }, "r469": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482603/740-30-50-2" }, "r470": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "323", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(d)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2" }, "r471": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "323", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2" }, "r472": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "323", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2" }, "r473": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "323", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(g)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2" }, "r474": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "323", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(g)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2" }, "r475": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/805-10/tableOfContent" }, "r476": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r477": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r478": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r479": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r480": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r481": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r482": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r483": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r484": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r485": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(g)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r486": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(g)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r487": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(g)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r488": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(g)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r489": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r490": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r491": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r492": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r493": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r494": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-3" }, "r495": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-4" }, "r496": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-5" }, "r497": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-7" }, "r498": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/805-20/tableOfContent" }, "r499": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r500": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r501": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r502": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r503": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r504": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r505": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r506": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r507": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(1)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r508": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r509": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r510": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-2" }, "r511": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-3" }, "r512": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-4" }, "r513": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-4A" }, "r514": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4A", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-4A" }, "r515": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-4A" }, "r516": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-5" }, "r517": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-5" }, "r518": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/805-30/tableOfContent" }, "r519": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r520": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r521": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r522": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r523": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r524": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r525": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r526": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r527": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r528": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r529": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r530": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(f)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r531": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(f)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r532": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-2" }, "r533": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-3" }, "r534": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-4" }, "r535": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-4" }, "r536": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-4" }, "r537": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479326/805-40-45-1" }, "r538": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "60", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(d)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476176/805-60-65-1" }, "r539": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "805", "SubTopic": "60", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(g)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476176/805-60-65-1" }, "r540": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "19", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481231/810-10-45-19" }, "r541": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481231/810-10-45-25" }, "r542": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481231/810-10-45-25" }, "r543": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-1A" }, "r544": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-1A" }, "r545": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-3" }, "r546": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-3" }, "r547": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/815/tableOfContent" }, "r548": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A" }, "r549": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A" }, "r550": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A" }, "r551": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A" }, "r552": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1B" }, "r553": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-2" }, "r554": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-2" }, "r555": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-2" }, "r556": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-2" }, "r557": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-2" }, "r558": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4A" }, "r559": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B" }, "r560": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4B", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B" }, "r561": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4B", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B" }, "r562": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4B", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B" }, "r563": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4EE", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4EE" }, "r564": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4EE", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4EE" }, "r565": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4EE", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4EE" }, "r566": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4EE", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4EE" }, "r567": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4EEE", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4EEE" }, "r568": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4EEE", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4EEE" }, "r569": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4EEE", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4EEE" }, "r570": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4F", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4F" }, "r571": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4H", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4H" }, "r572": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4H", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4H" }, "r573": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4I", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4I" }, "r574": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r575": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r576": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r577": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(a)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r578": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(a)(5)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r579": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r580": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r581": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4K", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K" }, "r582": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5C", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-5C" }, "r583": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-7A" }, "r584": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-8A" }, "r585": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "15", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480960/815-15-50-3" }, "r586": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6" }, "r587": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6" }, "r588": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6" }, "r589": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6" }, "r590": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6" }, "r591": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(i)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6" }, "r592": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480870/815-30-50-2" }, "r593": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480870/815-30-50-2" }, "r594": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480870/815-30-50-2" }, "r595": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480870/815-30-50-2" }, "r596": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480237/815-40-50-5" }, "r597": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1" }, "r598": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(e)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1" }, "r599": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1" }, "r600": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "54B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482134/820-10-35-54B" }, "r601": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r602": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r603": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(bbb)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r604": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(bbb)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r605": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(bbb)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r606": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r607": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r608": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r609": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r610": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r611": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r612": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(g)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r613": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r614": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2E", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2E" }, "r615": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3" }, "r616": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3" }, "r617": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A" }, "r618": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6A", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A" }, "r619": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6A", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A" }, "r620": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6A", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A" }, "r621": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6A", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A" }, "r622": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6B" }, "r623": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "13", "Subparagraph": "(d)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482477/820-10-65-13" }, "r624": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482736/825-10-45-1A" }, "r625": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482736/825-10-45-2" }, "r626": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-10" }, "r627": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-11" }, "r628": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-11" }, "r629": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-11" }, "r630": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-12" }, "r631": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-28" }, "r632": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-28" }, "r633": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-28" }, "r634": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "30", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-30" }, "r635": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-32" }, "r636": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-17" }, "r637": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20" }, "r638": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20" }, "r639": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20" }, "r640": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20" }, "r641": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20" }, "r642": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481674/830-30-50-1" }, "r643": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481674/830-30-50-2" }, "r644": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "835", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482925/835-30-45-2" }, "r645": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "8", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479832/842-10-65-8" }, "r646": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "12A", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479165/842-20-35-12A" }, "r647": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478964/842-20-50-7A" }, "r648": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "848", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(a)(3)(iii)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483550/848-10-65-2" }, "r649": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1" }, "r650": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1" }, "r651": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/855/tableOfContent" }, "r652": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483399/855-10-50-2" }, "r653": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483399/855-10-50-2" }, "r654": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r655": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r656": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r657": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r658": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r659": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r660": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r661": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r662": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r663": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4" }, "r664": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4" }, "r665": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4" }, "r666": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4" }, "r667": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481444/860-30-45-1" }, "r668": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(b)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481420/860-30-50-1A" }, "r669": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481420/860-30-50-7" }, "r670": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481420/860-30-50-7" }, "r671": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481420/860-30-50-7" }, "r672": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3" }, "r673": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3" }, "r674": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3" }, "r675": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(4)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3" }, "r676": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r677": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r678": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r679": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r680": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(5)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r681": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(6)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r682": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(7)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r683": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r684": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r685": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r686": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4" }, "r687": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "910", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482546/910-10-50-6" }, "r688": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "924", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 11.L)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479941/924-10-S99-1" }, "r689": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478934/932-220-50-1" }, "r690": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-18" }, "r691": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-18" }, "r692": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-18" }, "r693": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "19", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-19" }, "r694": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "20", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-20" }, "r695": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "20", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-20" }, "r696": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "23", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-23" }, "r697": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "23", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-23" }, "r698": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "23", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-23" }, "r699": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "23", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-23" }, "r700": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "23", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-23" }, "r701": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "23", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-23" }, "r702": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-28" }, "r703": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-28" }, "r704": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-31" }, "r705": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-31" }, "r706": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-31" }, "r707": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-31" }, "r708": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-31" }, "r709": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-31" }, "r710": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-5" }, "r711": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-5" }, "r712": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-5" }, "r713": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-5" }, "r714": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-5" }, "r715": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-5" }, "r716": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-6" }, "r717": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-7" }, "r718": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-8" }, "r719": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-8" }, "r720": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-8" }, "r721": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "280", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478657/932-280-50-1" }, "r722": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "932", "SubTopic": "323", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478988/932-323-50-1" }, "r723": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "940", "SubTopic": "820", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478119/940-820-50-1" }, "r724": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(10)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r725": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r726": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(10))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r727": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(11))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r728": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(14)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r729": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(23))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r730": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(26))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r731": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(27))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r732": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(9))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1" }, "r733": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "230", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479024/942-230-45-1" }, "r734": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478671/942-235-S50-1" }, "r735": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-05(b)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477314/942-235-S99-1" }, "r736": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-05(b)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477314/942-235-S99-1" }, "r737": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-05(b)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477314/942-235-S99-1" }, "r738": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A" }, "r739": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3A", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A" }, "r740": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A" }, "r741": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3A", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A" }, "r742": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478451/942-360-50-1" }, "r743": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "740", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477617/942-740-50-1" }, "r744": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "825", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478898/942-825-50-1" }, "r745": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(1)(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r746": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(1)(h))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r747": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r748": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(10))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r749": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(12))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r750": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(15))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r751": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r752": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(19))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r753": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(22))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r754": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r755": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r756": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(25))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r757": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r758": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(8))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r759": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(11))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r760": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(16))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r761": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(18))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r762": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(19))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r763": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(2)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r764": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(20))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r765": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(22))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r766": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(23))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r767": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(3)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r768": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(9))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1" }, "r769": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-5" }, "r770": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A" }, "r771": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2" }, "r772": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(f)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2" }, "r773": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(f)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2" }, "r774": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(g)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2" }, "r775": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(g)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2" }, "r776": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(h)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2" }, "r777": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 5.W.Q2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479583/944-40-S99-1" }, "r778": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "740", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478822/944-740-50-1" }, "r779": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "805", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478072/944-805-50-1" }, "r780": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "825", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477351/944-825-50-1B" }, "r781": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "825", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1B", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477351/944-825-50-1B" }, "r782": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3" }, "r783": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(f)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3" }, "r784": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(f)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3" }, "r785": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(f)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3" }, "r786": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(h)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3" }, "r787": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(i)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3" }, "r788": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(i)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3" }, "r789": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480990/946-20-50-11" }, "r790": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480990/946-20-50-13" }, "r791": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "16", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480990/946-20-50-16" }, "r792": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478009/946-205-45-3" }, "r793": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478009/946-205-45-4" }, "r794": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478009/946-205-45-6" }, "r795": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477796/946-210-45-4" }, "r796": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r797": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-2" }, "r798": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r799": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r800": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r801": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r802": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r803": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(12)(b)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r804": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(12)(b)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r805": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(12)(b)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r806": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(13)(a)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r807": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(13)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r808": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(13)(a)(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r809": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(14))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r810": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(15))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r811": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(16)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r812": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r813": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(19))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r814": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(2)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r815": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(2)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r816": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(3)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r817": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(3)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r818": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(3)(c))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r819": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(5)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r820": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r821": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(c))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r822": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r823": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(e))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r824": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(8))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r825": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r826": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(c))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r827": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r828": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(e))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r829": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.6-05(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-2" }, "r830": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.6-05(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-2" }, "r831": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479105/946-220-45-7" }, "r832": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r833": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(2)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r834": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r835": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r836": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r837": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r838": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r839": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r840": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r841": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r842": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r843": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r844": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r845": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r846": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(9))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1" }, "r847": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(1)(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3" }, "r848": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(4)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3" }, "r849": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3" }, "r850": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3" }, "r851": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477802/946-310-45-1" }, "r852": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r853": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column C)(Footnote 5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r854": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column C)(Footnote 8)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r855": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "12", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-12" }, "r856": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "19", "Subparagraph": "(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-19" }, "r857": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "19", "Subparagraph": "(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-19" }, "r858": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r859": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column C)(Footnote 4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r860": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 4)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r861": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 4)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r862": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 11)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r863": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r864": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" }, "r865": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column F)(Footnote 5)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" }, "r866": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column F)(Footnote 7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" }, "r867": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478448/946-505-50-2" }, "r868": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478448/946-505-50-2" }, "r869": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "948", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477011/948-310-45-1" }, "r870": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "948", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478322/948-310-S50-2" }, "r871": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "948", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-29(Column A)(Footnote 3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479628/948-310-S99-1" }, "r872": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "948", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-29(Column A)(Footnote 4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479628/948-310-S99-1" }, "r873": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "948", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-29(Column B))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479628/948-310-S99-1" }, "r874": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "948", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-29(Column C))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479628/948-310-S99-1" }, "r875": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "954", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477220/954-210-45-4" }, "r876": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "954", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478600/954-210-50-2" }, "r877": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "954", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478785/954-310-50-2" }, "r878": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r879": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column B))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r880": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column C))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r881": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column D))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r882": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column E))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r883": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column F))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r884": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column G))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r885": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column H))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r886": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column I))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478979/970-360-S99-1" }, "r887": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "976", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477332/976-310-50-1" }, "r888": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "978", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479230/978-310-50-1" }, "r889": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "985", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481283/985-20-50-1" }, "r890": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "985", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481283/985-20-50-2" }, "r891": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "9", "Subparagraph": "(c)", "SubTopic": "10", "Topic": "270", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482989/270-10-45-9" }, "r892": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "SubTopic": "10", "Topic": "825", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482881/825-10-55-10" }, "r893": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "13H", "Subparagraph": "(b)", "SubTopic": "40", "Topic": "944", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480046/944-40-55-13H" }, "r894": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "40", "SubTopic": "30", "Topic": "350", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482640/350-30-55-40" }, "r895": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-15" }, "r896": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "20", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-20" }, "r897": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "21", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-21" }, "r898": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "22", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-22" }, "r899": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476148/220-40-50-12" }, "r900": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476153/220-40-55-11" }, "r901": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476153/220-40-55-14" }, "r902": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "18", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476153/220-40-55-18" }, "r903": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "21", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476153/220-40-55-21" }, "r904": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476153/220-40-55-24" }, "r905": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "220", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147476153/220-40-55-4" }, "r906": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483426/235-10-50-4" }, "r907": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480738/235-10-S50-1" }, "r908": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(m)(1)(ii)(A))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r909": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "52", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482635/260-10-55-52" }, "r910": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "18", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482836/275-10-55-18" }, "r911": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482836/275-10-55-6" }, "r912": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "30", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-30" }, "r913": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-31" }, "r914": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "47", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482785/280-10-55-47" }, "r915": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "47", "Subparagraph": "(bb)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482785/280-10-55-47" }, "r916": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "48", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482785/280-10-55-48" }, "r917": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "49", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482785/280-10-55-49" }, "r918": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "54", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482785/280-10-55-54" }, "r919": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481933/310-10-55-12A" }, "r920": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "4", "Subparagraph": "(SAB Topic 6.L.5.a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480418/310-10-S99-4" }, "r921": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-10" }, "r922": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r923": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r924": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r925": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r926": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r927": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r928": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(b)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r929": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r930": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r931": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(d)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r932": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r933": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(d)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r934": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(d)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r935": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r936": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12" }, "r937": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15" }, "r938": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15" }, "r939": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15" }, "r940": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15" }, "r941": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "79", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-79" }, "r942": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "80", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-80" }, "r943": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479081/326-30-55-8" }, "r944": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482548/350-20-55-24" }, "r945": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "69B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481568/470-20-55-69B" }, "r946": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "69C", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481568/470-20-55-69C" }, "r947": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "480", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "64", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481620/480-10-55-64" }, "r948": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-13" }, "r949": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "606", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479806/606-10-50-5" }, "r950": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "606", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "91", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479777/606-10-55-91" }, "r951": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r952": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r953": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r954": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r955": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480482/715-20-55-17" }, "r956": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-11" }, "r957": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-6" }, "r958": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480547/715-80-55-8" }, "r959": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r960": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r961": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "231", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482663/740-10-55-231" }, "r962": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-8" }, "r963": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "29", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-29" }, "r964": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "29", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-29" }, "r965": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "38", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-38" }, "r966": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "39", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-39" }, "r967": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "41", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-41" }, "r968": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "42", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-42" }, "r969": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "43", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-43" }, "r970": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "45", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-45" }, "r971": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "46", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-46" }, "r972": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "47", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479303/805-10-55-47" }, "r973": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-1" }, "r974": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-2" }, "r975": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "805", "SubTopic": "740", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478064/805-740-55-13" }, "r976": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "4J", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481175/810-10-55-4J" }, "r977": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "4K", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481175/810-10-55-4K" }, "r978": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4L", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4L" }, "r979": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "181", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480401/815-10-55-181" }, "r980": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "182", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480401/815-10-55-182" }, "r981": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "183", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480401/815-10-55-183" }, "r982": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "184", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480401/815-10-55-184" }, "r983": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "185", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480401/815-10-55-185" }, "r984": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "100", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-100" }, "r985": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "100", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-100" }, "r986": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "101", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-101" }, "r987": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "103", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-103" }, "r988": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "107", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107" }, "r989": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "107", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107" }, "r990": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "107", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107" }, "r991": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "107", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107" }, "r992": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "107", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107" }, "r993": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "107", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107" }, "r994": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482881/825-10-55-12" }, "r995": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "852", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481372/852-10-55-10" }, "r996": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481395/860-30-55-4" }, "r997": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-17" }, "r998": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "21", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-21" }, "r999": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "29", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-29" }, "r1000": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477215/932-235-50-3" }, "r1001": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477916/932-235-55-2" }, "r1002": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477916/932-235-55-4" }, "r1003": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477916/932-235-55-5" }, "r1004": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "932", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477916/932-235-55-6" }, "r1005": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "942", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479255/942-310-S50-4" }, "r1006": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "942", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SAB Topic 11.H.2.Q2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478116/942-310-S99-2" }, "r1007": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "29F", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480046/944-40-55-29F" }, "r1008": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "9C", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480046/944-40-55-9C" }, "r1009": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "605", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477548/944-605-55-11" }, "r1010": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "605", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477548/944-605-55-14" }, "r1011": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480078/944-80-55-14" }, "r1012": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480078/944-80-55-17" }, "r1013": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480078/944-80-55-9" }, "r1014": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r1015": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r1016": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477439/946-210-55-1" }, "r1017": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477802/946-310-45-1" }, "r1018": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r1019": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r1020": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 1)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r1021": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" }, "r1022": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "405", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478790/946-405-45-2" }, "r1023": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "830", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479168/946-830-55-10" }, "r1024": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "830", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479168/946-830-55-11" }, "r1025": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "830", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479168/946-830-55-12" }, "r1026": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b" }, "r1027": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b-2" }, "r1028": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "d1-1" }, "r1029": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 10-Q", "Number": "240", "Section": "308", "Subsection": "a" }, "r1030": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "16", "Subsection": "J", "Paragraph": "a" }, "r1031": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1" }, "r1032": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "i" }, "r1033": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "i", "Sentence": "A" }, "r1034": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "i", "Sentence": "B" }, "r1035": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "i", "Sentence": "C" }, "r1036": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "i", "Sentence": "D" }, "r1037": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "i", "Sentence": "E" }, "r1038": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "ii" }, "r1039": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "1", "Subparagraph": "iii" }, "r1040": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 20-F", "Section": "6", "Subsection": "F", "Paragraph": "2" }, "r1041": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a" }, "r1042": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "1" }, "r1043": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "1", "Sentence": "i" }, "r1044": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "1", "Sentence": "ii" }, "r1045": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "1", "Sentence": "iii" }, "r1046": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "1", "Sentence": "iv" }, "r1047": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "1", "Sentence": "v" }, "r1048": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "2" }, "r1049": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "a", "Subparagraph": "3" }, "r1050": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 40-F", "Section": "19", "Paragraph": "b" }, "r1051": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a" }, "r1052": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "1" }, "r1053": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "1", "Sentence": "i" }, "r1054": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "1", "Sentence": "ii" }, "r1055": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "1", "Sentence": "iii" }, "r1056": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "1", "Sentence": "iv" }, "r1057": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "1", "Sentence": "v" }, "r1058": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "2" }, "r1059": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "a", "Subparagraph": "3" }, "r1060": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-CSR", "Section": "18", "Paragraph": "b" }, "r1061": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Section": "13", "Subsection": "a-1" }, "r1062": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v" }, "r1063": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "1" }, "r1064": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "ii" }, "r1065": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii" }, "r1066": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "B", "Clause": "1", "Subclause": "ii" }, "r1067": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "C", "Clause": "1", "Subclause": "i" }, "r1068": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "C", "Clause": "1", "Subclause": "ii" }, "r1069": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "C", "Clause": "1", "Subclause": "iii" }, "r1070": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "C", "Clause": "1", "Subclause": "iv" }, "r1071": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "C", "Clause": "1", "Subclause": "v" }, "r1072": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "C", "Clause": "1", "Subclause": "vi" }, "r1073": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iv" }, "r1074": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "vi" }, "r1075": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "3" }, "r1076": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "4" }, "r1077": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "5", "Subparagraph": "i" }, "r1078": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "5", "Subparagraph": "ii" }, "r1079": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "5", "Subparagraph": "iii" }, "r1080": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "5", "Subparagraph": "iv" }, "r1081": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "6" }, "r1082": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "v", "Paragraph": "6", "Subparagraph": "i" }, "r1083": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1" }, "r1084": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "i" }, "r1085": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "i", "Sentence": "A" }, "r1086": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "i", "Sentence": "B" }, "r1087": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "i", "Sentence": "C" }, "r1088": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "i", "Sentence": "D" }, "r1089": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "i", "Sentence": "E" }, "r1090": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "ii" }, "r1091": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "1", "Subparagraph": "iii" }, "r1092": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "w", "Paragraph": "2" }, "r1093": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "x", "Paragraph": "1" }, "r1094": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "x", "Paragraph": "2" }, "r1095": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "x", "Paragraph": "2", "Subparagraph": "ii", "Sentence": "A" }, "r1096": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "x", "Paragraph": "2", "Subparagraph": "ii", "Sentence": "C" }, "r1097": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "x", "Paragraph": "2", "Subparagraph": "ii", "Sentence": "D" }, "r1098": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "x", "Paragraph": "2", "Subparagraph": "ii", "Sentence": "E" }, "r1099": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "402", "Subsection": "x", "Paragraph": "2", "Subparagraph": "ii", "Sentence": "F" }, "r1100": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "408", "Subsection": "a" }, "r1101": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "408", "Subsection": "a", "Paragraph": "1" }, "r1102": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "408", "Subsection": "a", "Paragraph": "2", "Subparagraph": "A" }, "r1103": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "408", "Subsection": "a", "Paragraph": "2", "Subparagraph": "B" }, "r1104": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "408", "Subsection": "a", "Paragraph": "2", "Subparagraph": "C" }, "r1105": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "408", "Subsection": "a", "Paragraph": "2", "Subparagraph": "D" }, "r1106": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Number": "229", "Section": "408", "Subsection": "b", "Paragraph": "1" }, "r1107": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Section": "402", "Number": "229", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "C", "Clause": "1" }, "r1108": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "A", "Number": "229" }, "r1109": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "B", "Clause": "1", "Number": "229" }, "r1110": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-K", "Section": "402", "Subsection": "v", "Paragraph": "2", "Subparagraph": "iii", "Sentence": "B", "Clause": "1", "Subclause": "i", "Number": "229" }, "r1111": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-T", "Number": "232", "Section": "405" }, "r1112": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Securities Act", "Number": "7A", "Section": "B", "Subsection": "2" }, "r1113": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(1)", "SubTopic": "310", "Topic": "944", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477363/944-310-50-3" }, "r1114": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "a", "Publisher": "SEC" }, "r1115": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "b", "Subparagraph": "(1)", "Publisher": "SEC" }, "r1116": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "b", "Subparagraph": "(2)", "Publisher": "SEC" }, "r1117": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "b", "Subparagraph": "(3)", "Publisher": "SEC" }, "r1118": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "c", "Subparagraph": "(2)(i)", "Publisher": "SEC" }, "r1119": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "c", "Subparagraph": "(2)(ii)", "Publisher": "SEC" }, "r1120": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "c", "Subparagraph": "(2)(iii)", "Publisher": "SEC" }, "r1121": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1404", "Paragraph": "a", "Publisher": "SEC" }, "r1122": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "a", "Subparagraph": "(1)", "Publisher": "SEC" }, "r1123": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "a", "Subparagraph": "(2)", "Publisher": "SEC" }, "r1124": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1405", "Paragraph": "a", "Subparagraph": "(3)", "Publisher": "SEC" }, "r1125": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-X (SX)", "Number": "210", "Section": "6", "Subsection": "04", "Paragraph": "12", "Subparagraph": "(b)(1)", "Publisher": "SEC" }, "r1126": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(3)(a)(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1" }, "r1127": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-10" }, "r1128": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-14" }, "r1129": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-4" }, "r1130": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-5" }, "r1131": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-6" }, "r1132": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r1133": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2" }, "r1134": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28" }, "r1135": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28" }, "r1136": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-2A" }, "r1137": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483426/235-10-50-4" }, "r1138": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480738/235-10-S50-1" }, "r1139": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480738/235-10-S50-4" }, "r1140": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(f))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r1141": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(g)(1)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r1142": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1" }, "r1143": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-04(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-3" }, "r1144": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "23", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-23" }, "r1145": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-24" }, "r1146": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-5" }, "r1147": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-6" }, "r1148": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1" }, "r1149": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1" }, "r1150": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "270", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482964/270-10-50-1" }, "r1151": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-18" }, "r1152": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-18" }, "r1153": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-18" }, "r1154": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-18" }, "r1155": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "275", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-18" }, "r1156": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22" }, "r1157": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "30", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-30" }, "r1158": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(ee)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32" }, "r1159": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32" }, "r1160": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org/310-10/tableOfContent" }, "r1161": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-13" }, "r1162": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-2" }, "r1163": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "42", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42" }, "r1164": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "42", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42" }, "r1165": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "310", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "40", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481628/310-20-40-7" }, "r1166": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481830/320-10-45-1" }, "r1167": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481830/320-10-45-11" }, "r1168": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r1169": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r1170": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r1171": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r1172": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r1173": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r1174": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r1175": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r1176": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r1177": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r1178": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B" }, "r1179": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-9" }, "r1180": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "321", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479536/321-10-50-3" }, "r1181": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "321", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479536/321-10-50-3" }, "r1182": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "321", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479536/321-10-50-3" }, "r1183": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "323", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481687/323-10-50-3" }, "r1184": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479366/326-20-35-6" }, "r1185": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479344/326-20-45-1" }, "r1186": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-11" }, "r1187": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r1188": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r1189": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r1190": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r1191": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r1192": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r1193": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13" }, "r1194": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-14" }, "r1195": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5" }, "r1196": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5" }, "r1197": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15" }, "r1198": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Subparagraph": "(g)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15" }, "r1199": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-4" }, "r1200": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "350", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480265/350-10-S45-1" }, "r1201": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1" }, "r1202": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "350", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1" }, "r1203": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "410", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "10", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481931/410-30-50-10" }, "r1204": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481544/470-10-50-6" }, "r1205": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A" }, "r1206": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(iii))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A" }, "r1207": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1B", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B" }, "r1208": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "15", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-15" }, "r1209": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-2" }, "r1210": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.3-04)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480008/505-10-S99-1" }, "r1211": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "505", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481520/505-30-50-4" }, "r1212": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "606", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479806/606-10-50-5" }, "r1213": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "606", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "91", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479777/606-10-55-91" }, "r1214": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r1215": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r1216": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480483/718-10-35-2" }, "r1217": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1218": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1219": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1220": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1221": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1222": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1223": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1224": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1225": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1226": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1227": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(04)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1228": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1229": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1230": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1231": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1232": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1233": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1234": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1235": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1236": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1237": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1238": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1239": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1240": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1241": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1242": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(v)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2" }, "r1243": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-2" }, "r1244": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-22" }, "r1245": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "23", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-23" }, "r1246": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "25", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479405/805-10-25-7" }, "r1247": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(g)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-2" }, "r1248": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479328/805-10-50-7" }, "r1249": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r1250": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r1251": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-1" }, "r1252": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479907/805-20-50-2" }, "r1253": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479581/805-30-50-4" }, "r1254": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "25", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480060/805-50-25-1" }, "r1255": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "30", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480027/805-50-30-1" }, "r1256": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "805", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "30", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480027/805-50-30-2" }, "r1257": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A" }, "r1258": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "815", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1B" }, "r1259": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "815", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480870/815-30-50-2" }, "r1260": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1" }, "r1261": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "54B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482134/820-10-35-54B" }, "r1262": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r1263": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r1264": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(bbb)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r1265": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(bbb)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r1266": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(bbb)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r1267": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2E", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2E" }, "r1268": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A" }, "r1269": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-10" }, "r1270": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-11" }, "r1271": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-11" }, "r1272": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-13" }, "r1273": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-28" }, "r1274": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-28" }, "r1275": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1" }, "r1276": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1" }, "r1277": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-2" }, "r1278": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-3" }, "r1279": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "852", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481404/852-10-50-7" }, "r1280": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "852", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481404/852-10-50-7" }, "r1281": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r1282": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r1283": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3" }, "r1284": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4" }, "r1285": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4" }, "r1286": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4" }, "r1287": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(7)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1" }, "r1288": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "942", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477314/942-235-S99-2" }, "r1289": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "942", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-2" }, "r1290": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(15)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r1291": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(16)(a)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r1292": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(16)(a)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r1293": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r1294": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1" }, "r1295": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479432/944-30-50-2B" }, "r1296": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477363/944-310-50-3" }, "r1297": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-4B" }, "r1298": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4B", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-4B" }, "r1299": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4D", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-4D" }, "r1300": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4G", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-4G" }, "r1301": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-5" }, "r1302": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-5" }, "r1303": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-5" }, "r1304": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-5" }, "r1305": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1306": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1307": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1308": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1309": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1310": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)(5)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1311": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)(6)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1312": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-6" }, "r1313": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A" }, "r1314": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A" }, "r1315": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A" }, "r1316": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A" }, "r1317": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A" }, "r1318": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A" }, "r1319": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7B" }, "r1320": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7B", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7B" }, "r1321": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7B", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7B" }, "r1322": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480109/944-80-50-1" }, "r1323": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480109/944-80-50-2" }, "r1324": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480109/944-80-50-2" }, "r1325": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478009/946-205-45-4" }, "r1326": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r1327": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(12)(b)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1" }, "r1328": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479105/946-220-45-3" }, "r1329": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(4)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3" }, "r1330": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3" }, "r1331": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477802/946-310-45-1" }, "r1332": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column C)(Footnote 5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r1333": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column C)(Footnote 4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r1334": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r1335": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column F)(Footnote 7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" }, "r1336": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "830", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "39", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477346/946-830-45-39" } } }