{ "version": "2.2", "instance": { "d111956dncsrs.htm": { "nsprefix": "af", "nsuri": "http://www.wealth.amg.com/20260827", "dts": { "schema": { "local": [ "cik0001089951-20260827.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/deprecated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/negated-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/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/country/2025/country-2025_def.xsd", "https://xbrl.sec.gov/dei/2025/dei-2025.xsd", "https://xbrl.sec.gov/oef/2025/oef-2025.xsd", "https://xbrl.sec.gov/oef/2025/oef-2025_lab.xsd", "https://xbrl.sec.gov/oef/2025/oef-sr-2025.xsd", "https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd" ] }, "inline": { "local": [ "d111956dncsrs.htm" ] } }, "keyStandard": 26, "keyCustom": 0, "axisStandard": 7, "axisCustom": 0, "memberStandard": 32, "memberCustom": 192, "hidden": { "total": 549, "http://xbrl.sec.gov/oef/2025": 546, "http://xbrl.sec.gov/dei/2025": 3 }, "contextCount": 979, "entityCount": 1, "segmentCount": 224, "elementCount": 347, "unitCount": 3, "baseTaxonomies": { "http://xbrl.sec.gov/oef/2025": 1482, "http://fasb.org/us-gaap/2025": 72, "http://xbrl.sec.gov/dei/2025": 42 }, "report": { "R1": { "role": "http://xbrl.sec.gov/oef/role/NcsrCover", "longName": "030000 - Disclosure - Form N-CSR Cover", "shortName": "Form N-CSR Cover", "isDefault": "true", "groupType": "disclosure", "subGroupType": "", "menuCat": "Cover", "order": "1", "firstAnchor": { "contextRef": "DefaultContext", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d111956dncsrs.htm", "first": true }, "uniqueAnchor": null }, "R2": { "role": "http://xbrl.sec.gov/oef/role/ShareholderReport", "longName": "030001 - Disclosure - Shareholder Report", "shortName": "Shareholder Report", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "2", "firstAnchor": { "contextRef": "DefaultContext", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d111956dncsrs.htm", "first": true }, "uniqueAnchor": { "contextRef": "D20251231_20260630_C000027322Member", "name": "oef:FundName", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d111956dncsrs.htm", "unique": true } }, "R3": { "role": "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "longName": "040020 - Disclosure - Shareholder Report, Holdings (Details)", "shortName": "Shareholder Report, Holdings (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "3", "firstAnchor": { "contextRef": "TI20260630_C000027322Member", "name": "oef:PctOfNav", "unitRef": "pure", "xsiNil": "false", "lang": null, "decimals": "4", "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d111956dncsrs.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "TI20260630_C000027322Member", "name": "oef:PctOfNav", "unitRef": "pure", "xsiNil": "false", "lang": null, "decimals": "4", "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d111956dncsrs.htm", "first": true, "unique": true } } }, "tag": { "af_AAAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AAAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "AAA [Member]" } } }, "auth_ref": [] }, "af_AAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "AA [Member]" } } }, "auth_ref": [] }, "af_ALSLtdAustraliaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ALSLtdAustraliaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "ALS Ltd Australia [Member]" } } }, "auth_ref": [] }, "af_AMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "A [Member]" } } }, "auth_ref": [] }, "af_APIGroupCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "APIGroupCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "API Group Corp [Member]" } } }, "auth_ref": [] }, "country_AU": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "AU", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "AUSTRALIA" } } }, "auth_ref": [] }, "oef_AccmVal": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccmVal", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Accumulated Value" } } }, "auth_ref": [ "r46" ] }, "oef_AccountValueLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountValueLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Account Value [Line Items]" } } }, "auth_ref": [ "r45" ] }, "oef_AccountValueTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountValueTable", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Account Value [Table]" } } }, "auth_ref": [ "r45" ] }, "oef_AccountValueTableAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountValueTableAbstract", "lang": { "en-us": { "role": { "label": "Account Value Table [Abstract]" } } }, "auth_ref": [ "r45" ] }, "oef_AccountantChngDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountantChngDate", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Accountant Change Date" } } }, "auth_ref": [ "r69" ] }, "oef_AccountantChngDisagreementsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountantChngDisagreementsTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Accountant Change Disagreements [Text Block]" } } }, "auth_ref": [ "r70" ] }, "oef_AccountantChngStatementTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountantChngStatementTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Accountant Change Statement [Text Block]" } } }, "auth_ref": [ "r69" ] }, "oef_AdditionalIndexAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AdditionalIndexAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Additional Index [Axis]" } } }, "auth_ref": [ "r45" ] }, "oef_AdditionalIndexDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AdditionalIndexDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Additional Index [Domain]" } } }, "auth_ref": [ "r45" ] }, "oef_AddlFundStatisticsSignificanceOrLimitsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlFundStatisticsSignificanceOrLimitsTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Fund Statistics Significance or Limits [Text Block]" } } }, "auth_ref": [ "r59" ] }, "oef_AddlFundStatisticsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlFundStatisticsTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Fund Statistics [Text Block]" } } }, "auth_ref": [ "r58" ] }, "oef_AddlInfoEmail": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoEmail", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information Email" } } }, "auth_ref": [ "r37" ] }, "oef_AddlInfoPhoneNumber": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoPhoneNumber", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information Phone Number" } } }, "auth_ref": [ "r37" ] }, "oef_AddlInfoTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information [Text Block]" } } }, "auth_ref": [ "r35" ] }, "oef_AddlInfoWebsite": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoWebsite", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information Website" } } }, "auth_ref": [ "r37" ] }, "af_AdvancedEnergyIndustriesIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AdvancedEnergyIndustriesIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Advanced Energy Industries Inc [Member]" } } }, "auth_ref": [] }, "oef_AdvisoryFeesPaidAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AdvisoryFeesPaidAmt", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Advisory Fees Paid, Amount" } } }, "auth_ref": [ "r58" ] }, "af_AirportMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AirportMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Airport [Member]" } } }, "auth_ref": [] }, "af_AllOtherMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AllOtherMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "All other [Member]" } } }, "auth_ref": [] }, "af_AlphabetIncClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AlphabetIncClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Alphabet Inc Class A [Member]" } } }, "auth_ref": [] }, "af_AlphabetIncClassCMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AlphabetIncClassCMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Alphabet Inc Class C [Member]" } } }, "auth_ref": [] }, "af_AmazonComIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AmazonComIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Amazon com Inc [Member]" } } }, "auth_ref": [] }, "dei_AmendmentDescription": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "AmendmentDescription", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Amendment Description", "documentation": "Description of changes contained within amended document." } } }, "auth_ref": [] }, "dei_AmendmentFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "AmendmentFlag", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "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": [] }, "af_AmerisBancorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AmerisBancorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Ameris Bancorp [Member]" } } }, "auth_ref": [] }, "af_AmphenolCorpClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AmphenolCorpClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Amphenol Corp Class A [Member]" } } }, "auth_ref": [] }, "oef_AnnlOrSemiAnnlStatementTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AnnlOrSemiAnnlStatementTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Annual or Semi-Annual Statement [Text Block]" } } }, "auth_ref": [ "r34" ] }, "af_AppleIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AppleIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Apple Inc [Member]" } } }, "auth_ref": [] }, "af_AppliedMaterialsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AppliedMaterialsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Applied Materials Inc [Member]" } } }, "auth_ref": [] }, "af_AristaNetworksIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AristaNetworksIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Arista Networks Inc [Member]" } } }, "auth_ref": [] }, "af_ArrowExplorationCorpCanadaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ArrowExplorationCorpCanadaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Arrow Exploration Corp Canada [Member]" } } }, "auth_ref": [] }, "us-gaap_AssetBackedSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AssetBackedSecuritiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Asset-Backed Securities [Member]", "documentation": "Securities that are primarily serviced by the cash flows of a discrete pool of receivables or other financial assets for example, but not limited to, credit card receivables, car loans, recreational vehicle loans, and mobile home loans." } } }, "auth_ref": [ "r20", "r22", "r28", "r76", "r78", "r79" ] }, "us-gaap_AssetsNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AssetsNet", "crdr": "debit", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Net Assets", "documentation": "Amount of net assets (liabilities)." } } }, "auth_ref": [ "r0" ] }, "af_AssociatedBritishFoodsPLCUnitedKingdomMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AssociatedBritishFoodsPLCUnitedKingdomMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Associated British Foods PLC United Kingdom [Member]" } } }, "auth_ref": [] }, "oef_AverageAnnualReturnAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AverageAnnualReturnAbstract", "lang": { "en-us": { "role": { "label": "Average Annual Return:" } } }, "auth_ref": [ "r73" ] }, "oef_AverageAnnualReturnLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AverageAnnualReturnLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Average Annual Return [Line Items]" } } }, "auth_ref": [ "r73" ] }, "oef_AverageAnnualReturnTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AverageAnnualReturnTable", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Average Annual Return [Table]" } } }, "auth_ref": [ "r73" ] }, "oef_AvgAnnlRtrPct": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AvgAnnlRtrPct", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Average Annual Return, Percent" } } }, "auth_ref": [ "r52" ] }, "oef_AvgAnnlRtrTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AvgAnnlRtrTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Average Annual Return [Table Text Block]" } } }, "auth_ref": [ "r52" ] }, "af_AzbilCorpJapanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "AzbilCorpJapanMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Azbil Corp Japan [Member]" } } }, "auth_ref": [] }, "af_BBBMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "BBBMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "BBB [Member]" } } }, "auth_ref": [] }, "af_BBMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "BBMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "BB [Member]" } } }, "auth_ref": [] }, "country_BE": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "BE", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "BELGIUM" } } }, "auth_ref": [] }, "af_BMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "BMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "B [Member]" } } }, "auth_ref": [] }, "af_BRCKGroupPLCUnitedKingdomMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "BRCKGroupPLCUnitedKingdomMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "BRCK Group PLC United Kingdom [Member]" } } }, "auth_ref": [] }, "af_BerkshireHathawayIncClassBMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "BerkshireHathawayIncClassBMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Berkshire Hathaway Inc Class B [Member]" } } }, "auth_ref": [] }, "af_BolloreSEFranceMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "BolloreSEFranceMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Bollore SE France [Member]" } } }, "auth_ref": [] }, "oef_BroadBasedIndexAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "BroadBasedIndexAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Broad Based Index [Axis]" } } }, "auth_ref": [ "r45" ] }, "oef_BroadBasedIndexDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "BroadBasedIndexDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Broad Based Index [Domain]" } } }, "auth_ref": [ "r45" ] }, "af_BroadcomIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "BroadcomIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Broadcom Inc [Member]" } } }, "auth_ref": [] }, "af_C000027322Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000027322Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000027322 [Member]", "terseLabel": "Class Z" } } }, "auth_ref": [] }, "af_C000027323Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000027323Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000027323 [Member]", "terseLabel": "Class N" } } }, "auth_ref": [] }, "af_C000027324Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000027324Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000027324 [Member]" } } }, "auth_ref": [] }, "af_C000027325Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000027325Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000027325 [Member]" } } }, "auth_ref": [] }, "af_C000056573Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000056573Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000056573 [Member]" } } }, "auth_ref": [] }, "af_C000069909Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000069909Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000069909 [Member]" } } }, "auth_ref": [] }, "af_C000069910Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000069910Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000069910 [Member]" } } }, "auth_ref": [] }, "af_C000069911Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000069911Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000069911 [Member]" } } }, "auth_ref": [] }, "af_C000077267Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000077267Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000077267 [Member]" } } }, "auth_ref": [] }, "af_C000077269Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000077269Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000077269 [Member]" } } }, "auth_ref": [] }, "af_C000077270Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000077270Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000077270 [Member]" } } }, "auth_ref": [] }, "af_C000077271Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000077271Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000077271 [Member]" } } }, "auth_ref": [] }, "af_C000077272Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000077272Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000077272 [Member]" } } }, "auth_ref": [] }, "af_C000078885Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000078885Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000078885 [Member]" } } }, "auth_ref": [] }, "af_C000115978Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000115978Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000115978 [Member]" } } }, "auth_ref": [] }, "af_C000115979Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000115979Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000115979 [Member]" } } }, "auth_ref": [] }, "af_C000115981Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000115981Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000115981 [Member]" } } }, "auth_ref": [] }, "af_C000122075Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000122075Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000122075 [Member]" } } }, "auth_ref": [] }, "af_C000122076Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000122076Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000122076 [Member]" } } }, "auth_ref": [] }, "af_C000142968Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000142968Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000142968 [Member]" } } }, "auth_ref": [] }, "af_C000142969Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000142969Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000142969 [Member]" } } }, "auth_ref": [] }, "af_C000157694Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000157694Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000157694 [Member]" } } }, "auth_ref": [] }, "af_C000157696Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000157696Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000157696 [Member]" } } }, "auth_ref": [] }, "af_C000176471Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000176471Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000176471 [Member]" } } }, "auth_ref": [] }, "af_C000176472Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000176472Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000176472 [Member]" } } }, "auth_ref": [] }, "af_C000180065Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180065Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180065 [Member]", "terseLabel": "Class I" } } }, "auth_ref": [] }, "af_C000180066Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180066Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180066 [Member]" } } }, "auth_ref": [] }, "af_C000180067Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180067Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180067 [Member]" } } }, "auth_ref": [] }, "af_C000180068Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180068Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180068 [Member]" } } }, "auth_ref": [] }, "af_C000180069Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180069Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180069 [Member]" } } }, "auth_ref": [] }, "af_C000180070Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180070Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180070 [Member]" } } }, "auth_ref": [] }, "af_C000180071Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180071Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180071 [Member]" } } }, "auth_ref": [] }, "af_C000180072Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000180072Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000180072 [Member]" } } }, "auth_ref": [] }, "af_C000241081Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000241081Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000241081 [Member]", "terseLabel": "{spt}" } } }, "auth_ref": [] }, "af_C000261130Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000261130Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000261130 [Member]", "terseLabel": "AMG GW&K Securitized Bond SMA Shares" } } }, "auth_ref": [] }, "af_C000276156Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "C000276156Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000276156 [Member]", "terseLabel": "GW&K High Yield Bond SMA Shares" } } }, "auth_ref": [] }, "country_CA": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "CA", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "CANADA" } } }, "auth_ref": [] }, "af_CCOHoldingsLLCCCOHoldingsCapitalCorp7000020133Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CCOHoldingsLLCCCOHoldingsCapitalCorp7000020133Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "CCO Holdings LLC CCO Holdings Capital Corp 7 000 02 01 33 [Member]" } } }, "auth_ref": [] }, "af_CECOEnvironmentalCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CECOEnvironmentalCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "CECO Environmental Corp [Member]" } } }, "auth_ref": [] }, "af_CaliforniaCommunityChoiceFinancingAuthoritySeriesF5000060136Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CaliforniaCommunityChoiceFinancingAuthoritySeriesF5000060136Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "California Community Choice Financing Authority Series F 5 000 06 01 36 [Member]" } } }, "auth_ref": [] }, "af_CanadianNaturalResourcesLtdCanadaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CanadianNaturalResourcesLtdCanadaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Canadian Natural Resources Ltd Canada [Member]" } } }, "auth_ref": [] }, "af_CarnivalCorpLtd5875061531BermudaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CarnivalCorpLtd5875061531BermudaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Carnival Corp Ltd 5 875 06 15 31 Bermuda [Member]" } } }, "auth_ref": [] }, "af_CarpenterTechnologyCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CarpenterTechnologyCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Carpenter Technology Corp [Member]" } } }, "auth_ref": [] }, "af_CasellaWasteSystemsIncClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CasellaWasteSystemsIncClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Casella Waste Systems Inc Class A [Member]" } } }, "auth_ref": [] }, "af_CavcoIndustriesIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CavcoIndustriesIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Cavco Industries Inc [Member]" } } }, "auth_ref": [] }, "af_CelaneseUSHoldingsLLC7550111530Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CelaneseUSHoldingsLLC7550111530Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Celanese US Holdings LLC 7 550 11 15 30 [Member]" } } }, "auth_ref": [] }, "af_CencoraIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CencoraIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Cencora Inc [Member]" } } }, "auth_ref": [] }, "af_CenteneCorp3375021530Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CenteneCorp3375021530Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Centene Corp 3 375 02 15 30 [Member]" } } }, "auth_ref": [] }, "af_CentralPlainsEnergyProject3SeriesA5000090142Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CentralPlainsEnergyProject3SeriesA5000090142Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Central Plains Energy Project 3 Series A 5 000 09 01 42 [Member]" } } }, "auth_ref": [] }, "af_ChicagoOHareInternationalAirportSeniorLienSeriesARevenue5000010136Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ChicagoOHareInternationalAirportSeniorLienSeriesARevenue5000010136Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Chicago O Hare International Airport Senior Lien Series A Revenue 5 000 01 01 36 [Member]" } } }, "auth_ref": [] }, "af_CieDeLOdetSEFranceMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CieDeLOdetSEFranceMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Cie de L Odet SE France [Member]" } } }, "auth_ref": [] }, "af_CityOfHoustonTXHotelOccupancyTaxAndSpecialRevenueSeriesC5500090158Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CityOfHoustonTXHotelOccupancyTaxAndSpecialRevenueSeriesC5500090158Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "City of Houston TX Hotel Occupancy Tax And Special Revenue Series C 5 500 09 01 58 [Member]" } } }, "auth_ref": [] }, "oef_ClassAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ClassAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Class [Axis]" } } }, "auth_ref": [ "r32" ] }, "oef_ClassName": { "xbrltype": "securityTitleItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ClassName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Class Name" } } }, "auth_ref": [ "r37" ] }, "af_ComfortSystemsUSAIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ComfortSystemsUSAIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Comfort Systems USA Inc [Member]" } } }, "auth_ref": [] }, "oef_CommunicationsSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CommunicationsSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Communications Sector [Member]" } } }, "auth_ref": [ "r60" ] }, "af_CompassIncClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CompassIncClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Compass Inc Class A [Member]" } } }, "auth_ref": [] }, "af_ConstelliumSEFranceMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ConstelliumSEFranceMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Constellium SE France [Member]" } } }, "auth_ref": [] }, "oef_ConsumerDiscretionarySectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ConsumerDiscretionarySectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Consumer Discretionary Sector [Member]" } } }, "auth_ref": [ "r60" ] }, "oef_ConsumerStaplesSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ConsumerStaplesSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Consumer Staples Sector [Member]" } } }, "auth_ref": [ "r60" ] }, "af_CorporateBondsAndNotesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CorporateBondsAndNotesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Corporate Bonds and Notes [Member]" } } }, "auth_ref": [] }, "af_CountyOfJeffersonSewerRevenue5500100153Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CountyOfJeffersonSewerRevenue5500100153Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "County of Jefferson Sewer Revenue 5 500 10 01 53 [Member]" } } }, "auth_ref": [] }, "dei_CoverAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "CoverAbstract", "lang": { "en-us": { "role": { "documentation": "Cover page." } } }, "auth_ref": [] }, "oef_CreditQualityAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditQualityAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Credit Quality [Axis]" } } }, "auth_ref": [ "r60" ] }, "oef_CreditQualityDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditQualityDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Credit Quality [Domain]" } } }, "auth_ref": [ "r60" ] }, "oef_CreditQualityExplanationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditQualityExplanationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Credit Quality Explanation [Text Block]" } } }, "auth_ref": [ "r60" ] }, "srt_CreditRatingAMBestDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "CreditRatingAMBestDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r19", "r80" ] }, "oef_CreditRatingsSelectionTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditRatingsSelectionTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Credit Ratings Selection [Text Block]" } } }, "auth_ref": [ "r60" ] }, "af_CredoTechnologyGroupHoldingLtdMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CredoTechnologyGroupHoldingLtdMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Credo Technology Group Holding Ltd [Member]" } } }, "auth_ref": [] }, "af_CurtissWrightCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "CurtissWrightCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Curtiss Wright Corp [Member]" } } }, "auth_ref": [] }, "country_DE": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "DE", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "GERMANY" } } }, "auth_ref": [] }, "country_DK": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "DK", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "DENMARK" } } }, "auth_ref": [] }, "af_DaieiKankyoCoLtdJapanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "DaieiKankyoCoLtdJapanMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Daiei Kankyo Co Ltd Japan [Member]" } } }, "auth_ref": [] }, "af_DevelopmentMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "DevelopmentMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Development [Member]" } } }, "auth_ref": [] }, "oef_DistOfCapitalTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "DistOfCapitalTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Distribution of Capital [Text Block]" } } }, "auth_ref": [ "r54" ] }, "dei_DocumentPeriodEndDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentPeriodEndDate", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "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_DocumentType": { "xbrltype": "submissionTypeItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentType", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "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": [] }, "af_DucommunIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "DucommunIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Ducommun Inc [Member]" } } }, "auth_ref": [] }, "af_EMCORGroupIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "EMCORGroupIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "EMCOR Group Inc [Member]" } } }, "auth_ref": [] }, "country_ES": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "ES", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "SPAIN" } } }, "auth_ref": [] }, "af_EducationMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "EducationMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Education [Member]" } } }, "auth_ref": [] }, "af_ElementSolutionsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ElementSolutionsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Element Solutions Inc [Member]" } } }, "auth_ref": [] }, "us-gaap_EnergySectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "EnergySectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Energy Sector [Member]", "documentation": "Sector of economy consisting of companies engaged in business activity related to energy." } } }, "auth_ref": [ "r25", "r26", "r27", "r86", "r87", "r88", "r89" ] }, "af_EntegrisIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "EntegrisIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Entegris Inc [Member]" } } }, "auth_ref": [] }, "dei_EntityCentralIndexKey": { "xbrltype": "centralIndexKeyItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityCentralIndexKey", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "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": [ "r30" ] }, "dei_EntityDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Series", "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains." } } }, "auth_ref": [] }, "dei_EntityInvCompanyType": { "xbrltype": "invCompanyType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityInvCompanyType", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Entity Investment Company Type", "documentation": "One of: N-1A (Mutual Fund), N-1 (Open-End Separate Account with No Variable Annuities), N-2 (Closed-End Investment Company), N-3 (Separate Account Registered as Open-End Management Investment Company), N-4 (Variable Annuity UIT Separate Account), N-5 (Small Business Investment Company), N-6 (Variable Life UIT Separate Account), S-1 or S-3 (Face Amount Certificate Company), S-6 (UIT, Non-Insurance Product)." } } }, "auth_ref": [ "r74" ] }, "dei_EntityRegistrantName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityRegistrantName", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "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": [ "r30" ] }, "af_EscambiaCountyHealthFacilitiesAuthority4000081550Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "EscambiaCountyHealthFacilitiesAuthority4000081550Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Escambia County Health Facilities Authority 4 000 08 15 50 [Member]" } } }, "auth_ref": [] }, "oef_EtfDiscountNumDays": { "xbrltype": "integerItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfDiscountNumDays", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Discount, Number of Days" } } }, "auth_ref": [ "r55" ] }, "oef_EtfPastPerfTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPastPerfTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Past Performance [Text Block]" } } }, "auth_ref": [ "r57" ] }, "oef_EtfPremiumDiscountTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPremiumDiscountTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Premium Discount [Text Block]" } } }, "auth_ref": [ "r55" ] }, "oef_EtfPremiumNumDays": { "xbrltype": "integerItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPremiumNumDays", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Premium, Number of Days" } } }, "auth_ref": [ "r55" ] }, "oef_EtfPurchaseExplanationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPurchaseExplanationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Purchase Explanation [Text Block]" } } }, "auth_ref": [ "r56" ] }, "us-gaap_ExchangeTradedFundsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ExchangeTradedFundsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Exchange Traded Funds [Member]", "documentation": "Investment that follows an index, commodity or basket of assets that trades similar to a stock on an exchange." } } }, "auth_ref": [ "r81", "r82" ] }, "oef_ExpenseRatioPct": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpenseRatioPct", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expense Ratio, Percent" } } }, "auth_ref": [ "r40" ] }, "oef_ExpensesExclExtraordinaryExpensesPct": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesExclExtraordinaryExpensesPct", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Excluding Extraordinary Expenses, Percent" } } }, "auth_ref": [ "r43" ] }, "oef_ExpensesPaidAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesPaidAmt", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Paid, Amount" } } }, "auth_ref": [ "r39" ] }, "oef_ExpensesRepresentBothMasterAndFeeder": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesRepresentBothMasterAndFeeder", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Represent Both Master and Feeder [Text]" } } }, "auth_ref": [ "r41", "r71" ] }, "oef_ExpensesShortPeriodFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesShortPeriodFnTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Short Period Footnote [Text Block]" } } }, "auth_ref": [ "r42" ] }, "oef_ExpensesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses [Text Block]" } } }, "auth_ref": [ "r38" ] }, "oef_ExposureBasisExplanationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExposureBasisExplanationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Exposure Basis Explanation [Text Block]" } } }, "auth_ref": [ "r60" ] }, "srt_ExternalCreditRatingFitchMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "ExternalCreditRatingFitchMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r19", "r80" ] }, "srt_ExternalCreditRatingMoodysMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "ExternalCreditRatingMoodysMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r19", "r80" ] }, "srt_ExternalCreditRatingStandardPoorsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "ExternalCreditRatingStandardPoorsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r19", "r80" ] }, "oef_ExtraordinaryExpensesFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExtraordinaryExpensesFnTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Extraordinary Expenses Footnote [Text Block]" } } }, "auth_ref": [ "r43" ] }, "af_FHLMC2500120151Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FHLMC2500120151Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC 2 500 12 01 51 [Member]" } } }, "auth_ref": [] }, "af_FHLMC3000080152Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FHLMC3000080152Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC 3 000 08 01 52 [Member]" } } }, "auth_ref": [] }, "af_FHLMC3500060149Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FHLMC3500060149Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC 3 500 06 01 49 [Member]" } } }, "auth_ref": [] }, "af_FHLMC4500090152Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FHLMC4500090152Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC 4 500 09 01 52 [Member]" } } }, "auth_ref": [] }, "af_FHLMC5500020154Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FHLMC5500020154Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC 5 500 02 01 54 [Member]" } } }, "auth_ref": [] }, "af_FNMA2000040152Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FNMA2000040152Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FNMA 2 000 04 01 52 [Member]" } } }, "auth_ref": [] }, "af_FNMA2500110151Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FNMA2500110151Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FNMA 2 500 11 01 51 [Member]" } } }, "auth_ref": [] }, "af_FNMA4000060153Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FNMA4000060153Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FNMA 4 000 06 01 53 [Member]" } } }, "auth_ref": [] }, "af_FNMA5000010153Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FNMA5000010153Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FNMA 5 000 01 01 53 [Member]" } } }, "auth_ref": [] }, "country_FR": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "FR", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FRANCE" } } }, "auth_ref": [] }, "oef_FactorsAffectingPerfTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "FactorsAffectingPerfTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Factors Affecting Performance [Text Block]" } } }, "auth_ref": [ "r44" ] }, "af_FilaSPAItalyMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FilaSPAItalyMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Fila S p A Italy [Member]" } } }, "auth_ref": [] }, "us-gaap_FinancialServicesSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancialServicesSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Financial Services Sector [Member]", "documentation": "Sector of the economy consisting of companies engaged in financial services." } } }, "auth_ref": [ "r25", "r29", "r86", "r87", "r88", "r89" ] }, "af_FloridaDevelopmentFinanceCorpRevenue4000111533Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FloridaDevelopmentFinanceCorpRevenue4000111533Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Florida Development Finance Corp Revenue 4 000 11 15 33 [Member]" } } }, "auth_ref": [] }, "af_FukuokaFinancialGroupIncJapanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "FukuokaFinancialGroupIncJapanMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Fukuoka Financial Group Inc Japan [Member]" } } }, "auth_ref": [] }, "oef_FundName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "FundName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Fund Name" } } }, "auth_ref": [ "r33" ] }, "country_GB": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "GB", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "UNITED KINGDOM" } } }, "auth_ref": [] }, "af_GNMA2500092050Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "GNMA2500092050Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "GNMA 2 500 09 20 50 [Member]" } } }, "auth_ref": [] }, "af_GeneralObligationMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "GeneralObligationMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "General Obligation [Member]" } } }, "auth_ref": [] }, "oef_GeographicRegionAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "GeographicRegionAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Geographic Region [Axis]" } } }, "auth_ref": [ "r60" ] }, "oef_GeographicRegionDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "GeographicRegionDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Geographic Region [Domain]" } } }, "auth_ref": [ "r60" ] }, "af_GovernmentAndAgencyMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "GovernmentAndAgencyMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Government And Agency [Member]" } } }, "auth_ref": [] }, "af_GreatLakesWaterAuthoritySewageDisposalSystemRevenueSeriesB5000070134Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "GreatLakesWaterAuthoritySewageDisposalSystemRevenueSeriesB5000070134Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Great Lakes Water Authority Sewage Disposal System Revenue Series B 5 000 07 01 34 [Member]" } } }, "auth_ref": [] }, "country_HK": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "HK", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "HONG KONG" } } }, "auth_ref": [] }, "us-gaap_HealthcareSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "HealthcareSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Healthcare Sector [Member]", "documentation": "Sector of the economy consisting of companies engaged in healthcare-related business activities." } } }, "auth_ref": [ "r25", "r26", "r27", "r29", "r86", "r87", "r88", "r89" ] }, "oef_HoldingsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsAbstract", "lang": { "en-us": { "role": { "label": "Holdings [Abstract]" } } }, "auth_ref": [ "r60" ] }, "oef_HoldingsCount": { "xbrltype": "integerItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsCount", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Holdings Count" } } }, "auth_ref": [ "r58" ] }, "oef_HoldingsLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Holdings [Line Items]" } } }, "auth_ref": [ "r60" ] }, "oef_HoldingsTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsTable", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Holdings [Table]" } } }, "auth_ref": [ "r60" ] }, "oef_HoldingsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Holdings [Text Block]" } } }, "auth_ref": [ "r60" ] }, "af_HousingMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "HousingMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Housing [Member]" } } }, "auth_ref": [] }, "af_HyundaiMobisCoLtdSouthKoreaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "HyundaiMobisCoLtdSouthKoreaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Hyundai Mobis Co Ltd South Korea [Member]" } } }, "auth_ref": [] }, "af_HyundaiMotorCo499SouthKoreaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "HyundaiMotorCo499SouthKoreaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Hyundai Motor Co 4 99 South Korea [Member]" } } }, "auth_ref": [] }, "af_IMAXCorpCanadaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "IMAXCorpCanadaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "IMAX Corp Canada [Member]" } } }, "auth_ref": [] }, "country_IT": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "IT", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "ITALY" } } }, "auth_ref": [] }, "af_ImdexLtdAustraliaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ImdexLtdAustraliaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Imdex Ltd Australia [Member]" } } }, "auth_ref": [] }, "oef_InabilityToMeetDistLevelTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "InabilityToMeetDistLevelTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Inability to Meet Distribution Level [Text Block]" } } }, "auth_ref": [ "r54" ] }, "oef_IndustrialSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "IndustrialSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Industrial Sector [Member]" } } }, "auth_ref": [ "r60" ] }, "oef_IndustrySectorAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "IndustrySectorAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Industry Sector [Axis]" } } }, "auth_ref": [ "r60" ] }, "oef_IndustrySectorDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "IndustrySectorDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Industry Sector [Domain]" } } }, "auth_ref": [ "r60" ] }, "oef_InformationTechnologySectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "InformationTechnologySectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Information Technology Sector [Member]" } } }, "auth_ref": [ "r60" ] }, "af_InteractiveBrokersGroupIncClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "InteractiveBrokersGroupIncClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Interactive Brokers Group Inc Class A [Member]" } } }, "auth_ref": [] }, "us-gaap_InvestmentCompanyPortfolioTurnover": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentCompanyPortfolioTurnover", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Investment Company Portfolio Turnover", "documentation": "Percentage of lesser of purchase or sale of portfolio securities to average value of portfolio securities owned." } } }, "auth_ref": [ "r85" ] }, "us-gaap_InvestmentTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentTypeAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Investment Type [Axis]", "documentation": "Information by type of investments." } } }, "auth_ref": [ "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r29" ] }, "us-gaap_InvestmentTypeCategorizationMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentTypeCategorizationMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "documentation": "Asset obtained to generate income or appreciate in value." } } }, "auth_ref": [ "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r29" ] }, "af_IonBeamApplicationsBelgiumMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "IonBeamApplicationsBelgiumMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Ion Beam Applications Belgium [Member]" } } }, "auth_ref": [] }, "af_ItalianWineBrandsSPAItalyMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ItalianWineBrandsSPAItalyMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Italian Wine Brands S p A Italy [Member]" } } }, "auth_ref": [] }, "af_JFrogLtdMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "JFrogLtdMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "JFrog Ltd [Member]" } } }, "auth_ref": [] }, "country_JP": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "JP", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "JAPAN" } } }, "auth_ref": [] }, "af_JohnsonAndJohnsonMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "JohnsonAndJohnsonMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Johnson And Johnson [Member]" } } }, "auth_ref": [] }, "af_KLACorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "KLACorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "KLA Corp [Member]" } } }, "auth_ref": [] }, "country_KR": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "KR", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "KOREA, REPUBLIC OF" } } }, "auth_ref": [] }, "af_KrystalBiotechIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "KrystalBiotechIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Krystal Biotech Inc [Member]" } } }, "auth_ref": [] }, "af_LGHAndHCoLtd223SouthKoreaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LGHAndHCoLtd223SouthKoreaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "LG HAndH Co Ltd 2 23 South Korea [Member]" } } }, "auth_ref": [] }, "af_LamResearchCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LamResearchCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Lam Research Corp [Member]" } } }, "auth_ref": [] }, "oef_LargestHoldingAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LargestHoldingAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Largest Holding [Axis]" } } }, "auth_ref": [ "r60" ] }, "oef_LargestHoldingsDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LargestHoldingsDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Largest Holdings [Domain]" } } }, "auth_ref": [ "r60" ] }, "oef_LargestHoldingsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LargestHoldingsTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Largest Holdings [Text Block]" } } }, "auth_ref": [ "r60" ] }, "af_LatticeSemiconductorCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LatticeSemiconductorCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Lattice Semiconductor Corp [Member]" } } }, "auth_ref": [] }, "af_LegacyHousingCorpUnitedStatesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LegacyHousingCorpUnitedStatesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Legacy Housing Corp United States [Member]" } } }, "auth_ref": [] }, "dei_LegalEntityAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "LegalEntityAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Series [Axis]", "documentation": "The set of legal entities associated with a report." } } }, "auth_ref": [] }, "af_LigandPharmaceuticalsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LigandPharmaceuticalsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Ligand Pharmaceuticals Inc [Member]" } } }, "auth_ref": [] }, "oef_LineGraphAndTableMeasureName": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LineGraphAndTableMeasureName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Line Graph and Table Measure Name" } } }, "auth_ref": [ "r46" ] }, "oef_LineGraphTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LineGraphTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Line Graph [Table Text Block]" } } }, "auth_ref": [ "r45" ] }, "af_LosAngelesDepartmentOfWaterAndPowerSeriesC5000070130Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LosAngelesDepartmentOfWaterAndPowerSeriesC5000070130Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Los Angeles Department of Water And Power Series C 5 000 07 01 30 [Member]" } } }, "auth_ref": [] }, "af_LouisianaStadiumAndExpositionDistrictSeriesA5000070142Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LouisianaStadiumAndExpositionDistrictSeriesA5000070142Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Louisiana Stadium And Exposition District Series A 5 000 07 01 42 [Member]" } } }, "auth_ref": [] }, "af_LouisianaStadiumAndExpositionDistrictSeriesA5250070153Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "LouisianaStadiumAndExpositionDistrictSeriesA5250070153Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Louisiana Stadium And Exposition District Series A 5 250 07 01 53 [Member]" } } }, "auth_ref": [] }, "af_MACOMTechnologySolutionsHoldingsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MACOMTechnologySolutionsHoldingsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "MACOM Technology Solutions Holdings Inc [Member]" } } }, "auth_ref": [] }, "af_MKSIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MKSIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "MKS Inc [Member]" } } }, "auth_ref": [] }, "country_MY": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "MY", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "MALAYSIA" } } }, "auth_ref": [] }, "af_MassachusettsDevelopmentFinanceAgency5250070152Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MassachusettsDevelopmentFinanceAgency5250070152Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Massachusetts Development Finance Agency 5 250 07 01 52 [Member]" } } }, "auth_ref": [] }, "af_MassachusettsDevelopmentFinanceAgency5250070155Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MassachusettsDevelopmentFinanceAgency5250070155Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Massachusetts Development Finance Agency 5 250 07 01 55 [Member]" } } }, "auth_ref": [] }, "oef_MaterialChngDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialChngDate", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Change Date" } } }, "auth_ref": [ "r50" ] }, "oef_MaterialChngDescriptionTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialChngDescriptionTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Change Description [Text Block]" } } }, "auth_ref": [ "r50" ] }, "oef_MaterialFundChngAdviserTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngAdviserTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Adviser [Text Block]" } } }, "auth_ref": [ "r67" ] }, "oef_MaterialFundChngExpensesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngExpensesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Expenses [Text Block]" } } }, "auth_ref": [ "r64" ] }, "oef_MaterialFundChngNameTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngNameTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Name [Text Block]" } } }, "auth_ref": [ "r62" ] }, "oef_MaterialFundChngNoticeTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngNoticeTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Notice [Text Block]" } } }, "auth_ref": [ "r36" ] }, "oef_MaterialFundChngObjectivesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngObjectivesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Objectives [Text Block]" } } }, "auth_ref": [ "r63" ] }, "oef_MaterialFundChngRisksChngTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngRisksChngTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Risks Change [Text Block]" } } }, "auth_ref": [ "r66" ] }, "oef_MaterialFundChngStrategiesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngStrategiesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Strategies [Text Block]" } } }, "auth_ref": [ "r65" ] }, "oef_MaterialFundChngTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change [Text Block]" } } }, "auth_ref": [ "r61" ] }, "oef_MaterialsSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialsSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Materials Sector [Member]" } } }, "auth_ref": [ "r60" ] }, "oef_MaturityAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaturityAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Maturity [Axis]" } } }, "auth_ref": [ "r60" ] }, "oef_MaturityDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaturityDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Maturity [Domain]" } } }, "auth_ref": [ "r60" ] }, "af_MedicalFacilitiesCorpCanadaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MedicalFacilitiesCorpCanadaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Medical Facilities Corp Canada [Member]" } } }, "auth_ref": [] }, "af_MedicalMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MedicalMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Medical [Member]" } } }, "auth_ref": [] }, "af_MerlinPropertiesSocimiSAREITSpainMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MerlinPropertiesSocimiSAREITSpainMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Merlin Properties Socimi S A REIT Spain [Member]" } } }, "auth_ref": [] }, "af_MiamiBeachHealthFacilitiesAuthority4000111546Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MiamiBeachHealthFacilitiesAuthority4000111546Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Miami Beach Health Facilities Authority 4 000 11 15 46 [Member]" } } }, "auth_ref": [] }, "af_MicrosoftCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MicrosoftCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Microsoft Corp [Member]" } } }, "auth_ref": [] }, "af_MirumPharmaceuticalsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MirumPharmaceuticalsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Mirum Pharmaceuticals Inc [Member]" } } }, "auth_ref": [] }, "af_MonolithicPowerSystemsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MonolithicPowerSystemsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Monolithic Power Systems Inc [Member]" } } }, "auth_ref": [] }, "af_MoogIncClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "MoogIncClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Moog Inc Class A [Member]" } } }, "auth_ref": [] }, "us-gaap_MortgageBackedSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MortgageBackedSecuritiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Collateralized Mortgage-Backed Securities [Member]", "documentation": "Securities collateralized by mortgage loans." } } }, "auth_ref": [ "r20", "r21", "r22", "r23", "r24", "r75", "r76", "r77", "r78", "r79", "r84" ] }, "country_NL": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "NL", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "NETHERLANDS" } } }, "auth_ref": [] }, "af_NewYorkTransportationDevelopmentCorp4000043053Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "NewYorkTransportationDevelopmentCorp4000043053Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New York Transportation Development Corp 4 000 04 30 53 [Member]" } } }, "auth_ref": [] }, "af_NewYorkTransportationDevelopmentCorp5000120136Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "NewYorkTransportationDevelopmentCorp5000120136Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New York Transportation Development Corp 5 000 12 01 36 [Member]" } } }, "auth_ref": [] }, "af_NewYorkTransportationDevelopmentCorp5625040140Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "NewYorkTransportationDevelopmentCorp5625040140Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New York Transportation Development Corp 5 625 04 01 40 [Member]" } } }, "auth_ref": [] }, "af_NihonParkerizingCoLtdJapanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "NihonParkerizingCoLtdJapanMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Nihon Parkerizing Co Ltd Japan [Member]" } } }, "auth_ref": [] }, "af_NissanMotorAcceptanceCoLLC6125093030Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "NissanMotorAcceptanceCoLLC6125093030Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Nissan Motor Acceptance Co LLC 6 125 09 30 30 [Member]" } } }, "auth_ref": [] }, "oef_NoDeductionOfTaxesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "NoDeductionOfTaxesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "No Deduction of Taxes [Text Block]" } } }, "auth_ref": [ "r47" ] }, "dei_NoTradingSymbolFlag": { "xbrltype": "trueItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "NoTradingSymbolFlag", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "No Trading Symbol Flag", "documentation": "Boolean flag that is true only for a security having no trading symbol." } } }, "auth_ref": [] }, "af_NotRatedMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "NotRatedMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Not Rated [Member]" } } }, "auth_ref": [] }, "af_NovantaIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "NovantaIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Novanta Inc [Member]" } } }, "auth_ref": [] }, "af_OSGCorpJapanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "OSGCorpJapanMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "OSG Corp Japan [Member]" } } }, "auth_ref": [] }, "af_OmniBridgewayLtdAustraliaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "OmniBridgewayLtdAustraliaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Omni Bridgeway Ltd Australia [Member]" } } }, "auth_ref": [] }, "af_OntoInnovationIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "OntoInnovationIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Onto Innovation Inc [Member]" } } }, "auth_ref": [] }, "af_OtherAssetsLessLiabilitiesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "OtherAssetsLessLiabilitiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Assets less Liabilities [Member]" } } }, "auth_ref": [] }, "oef_OtherCategory1Axis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory1Axis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 1 [Axis]" } } }, "auth_ref": [ "r60" ] }, "oef_OtherCategory1Domain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory1Domain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 1 [Domain]" } } }, "auth_ref": [ "r60" ] }, "oef_OtherCategory2Axis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory2Axis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 2 [Axis]" } } }, "auth_ref": [ "r60" ] }, "oef_OtherCategory2Domain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory2Domain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 2 [Domain]" } } }, "auth_ref": [ "r60" ] }, "oef_PctOfNav": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfNav", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Net Asset Value" } } }, "auth_ref": [ "r60" ] }, "oef_PctOfNetLongExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfNetLongExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Net Long Exposure" } } }, "auth_ref": [ "r60" ] }, "oef_PctOfNetShortExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfNetShortExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Net Short Exposure" } } }, "auth_ref": [ "r60" ] }, "oef_PctOfTotalInv": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfTotalInv", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Total Investments" } } }, "auth_ref": [ "r60" ] }, "oef_PctOfTotalLongExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfTotalLongExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Total Long Exposure" } } }, "auth_ref": [ "r60" ] }, "oef_PctOfTotalShortExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfTotalShortExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Total Short Exposure" } } }, "auth_ref": [ "r60" ] }, "af_PennsylvaniaEconomicDevelopmentFinancingAuthority5000123157Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PennsylvaniaEconomicDevelopmentFinancingAuthority5000123157Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Pennsylvania Economic Development Financing Authority 5 000 12 31 57 [Member]" } } }, "auth_ref": [] }, "af_PennsylvaniaEconomicDevelopmentFinancingAuthority5250063053Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PennsylvaniaEconomicDevelopmentFinancingAuthority5250063053Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Pennsylvania Economic Development Financing Authority 5 250 06 30 53 [Member]" } } }, "auth_ref": [] }, "af_PennsylvaniaHigherEducationalFacilitiesAuthoritySeriesB25000110154Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PennsylvaniaHigherEducationalFacilitiesAuthoritySeriesB25000110154Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Pennsylvania Higher Educational Facilities Authority Series B2 5 000 11 01 54 [Member]" } } }, "auth_ref": [] }, "oef_PerfInceptionDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PerfInceptionDate", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Performance Inception Date" } } }, "auth_ref": [ "r46" ] }, "oef_PerfTableMarketIndexChngdTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PerfTableMarketIndexChngdTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Performance Table Market Index Changed [Text Block]" } } }, "auth_ref": [ "r53" ] }, "oef_PerformancePastDoesNotIndicateFuture": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PerformancePastDoesNotIndicateFuture", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Performance Past Does Not Indicate Future [Text]" } } }, "auth_ref": [ "r48", "r72" ] }, "af_PowellIndustriesIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PowellIndustriesIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Powell Industries Inc [Member]" } } }, "auth_ref": [] }, "af_PowerMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PowerMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Power [Member]" } } }, "auth_ref": [] }, "oef_PreviousInvestmentAdviserTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PreviousInvestmentAdviserTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Previous Investment Adviser [Text Block]" } } }, "auth_ref": [ "r49" ] }, "oef_PriorMarketIndexComparisonTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PriorMarketIndexComparisonTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Prior Market Index Comparison [Text Block]" } } }, "auth_ref": [ "r53" ] }, "af_PublicAuthorityForColoradoEnergyNaturalGasPurchaseRevenue6500111538Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PublicAuthorityForColoradoEnergyNaturalGasPurchaseRevenue6500111538Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Public Authority for Colorado Energy Natural Gas Purchase Revenue 6 500 11 15 38 [Member]" } } }, "auth_ref": [] }, "af_PublicFinanceAuthority5750123165Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PublicFinanceAuthority5750123165Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Public Finance Authority 5 750 12 31 65 [Member]" } } }, "auth_ref": [] }, "af_PursuitAttractionsAndHospitalityIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "PursuitAttractionsAndHospitalityIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Pursuit Attractions and Hospitality Inc [Member]" } } }, "auth_ref": [] }, "af_RBCBearingsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "RBCBearingsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "RBC Bearings Inc [Member]" } } }, "auth_ref": [] }, "us-gaap_RealEstateSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RealEstateSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Real Estate Sector [Member]", "documentation": "Sector of the economy consisting of companies engaged in real estate business activities." } } }, "auth_ref": [ "r18", "r25", "r86", "r87", "r88", "r89" ] }, "af_RelianceIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "RelianceIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Reliance Inc [Member]" } } }, "auth_ref": [] }, "af_RhodeIslandHealthAndEducationalBuildingCorp5250051554Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "RhodeIslandHealthAndEducationalBuildingCorp5250051554Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Rhode Island Health and Educational Building Corp 5 250 05 15 54 [Member]" } } }, "auth_ref": [] }, "af_RichlandCountySchoolDistrictNo2SeriesA1875030138Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "RichlandCountySchoolDistrictNo2SeriesA1875030138Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Richland County School District No 2 Series A 1 875 03 01 38 [Member]" } } }, "auth_ref": [] }, "af_RingkjoebingLandbobankASDenmarkMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "RingkjoebingLandbobankASDenmarkMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Ringkjoebing Landbobank A S Denmark [Member]" } } }, "auth_ref": [] }, "af_RocketCosInc6500080129Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "RocketCosInc6500080129Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Rocket Cos Inc 6 500 08 01 29 [Member]" } } }, "auth_ref": [] }, "af_SMEnergyCo9625061533Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SMEnergyCo9625061533Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "SM Energy Co 9 625 06 15 33 [Member]" } } }, "auth_ref": [] }, "af_SPXTechnologiesIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SPXTechnologiesIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "SPX Technologies Inc [Member]" } } }, "auth_ref": [] }, "oef_SalesLoadAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "SalesLoadAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Sales Load [Axis]" } } }, "auth_ref": [ "r52" ] }, "af_SamsungElectronicsCoLtd090SouthKoreaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SamsungElectronicsCoLtd090SouthKoreaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Samsung Electronics Co Ltd 0 90 South Korea [Member]" } } }, "auth_ref": [] }, "dei_SecurityExchangeName": { "xbrltype": "edgarExchangeCodeItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "SecurityExchangeName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Security Exchange Name", "terseLabel": "Exchange", "documentation": "Name of the Exchange on which a security is registered." } } }, "auth_ref": [ "r31" ] }, "af_SemtechCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SemtechCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Semtech Corp [Member]" } } }, "auth_ref": [] }, "oef_ShareClassDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareClassDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Share Classes" } } }, "auth_ref": [ "r32" ] }, "oef_ShareholderReportAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportAbstract", "lang": { "en-us": { "role": { "label": "Shareholder Report [Abstract]" } } }, "auth_ref": [ "r52" ] }, "oef_ShareholderReportAnnualOrSemiAnnual": { "xbrltype": "shareholderReportTypeItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportAnnualOrSemiAnnual", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Shareholder Report Annual or Semi-Annual" } } }, "auth_ref": [ "r34" ] }, "oef_ShareholderReportLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Shareholder Report [Line Items]" } } }, "auth_ref": [ "r52" ] }, "oef_ShareholderReportTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportTable", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Shareholder Report [Table]" } } }, "auth_ref": [ "r52" ] }, "us-gaap_ShortTermInvestmentsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShortTermInvestmentsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Short-Term Investments [Member]", "documentation": "Investments which are not otherwise included in another category or item that the entity has the intent to sell or dispose of within one year from the date of the balance sheet." } } }, "auth_ref": [ "r14", "r15", "r16", "r17" ] }, "af_SiTimeCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SiTimeCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "SiTime Corp [Member]" } } }, "auth_ref": [] }, "af_SnowflakeIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SnowflakeIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Snowflake Inc [Member]" } } }, "auth_ref": [] }, "af_SolarisEnergyInfrastructureIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SolarisEnergyInfrastructureIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Solaris Energy Infrastructure Inc [Member]" } } }, "auth_ref": [] }, "af_SoutheastEnergyAuthorityACooperativeDistrictSeriesE5000100130Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SoutheastEnergyAuthorityACooperativeDistrictSeriesE5000100130Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Southeast Energy Authority A Cooperative District Series E 5 000 10 01 30 [Member]" } } }, "auth_ref": [] }, "af_StateBoardOfAdministrationFinanceCorpSeriesA5526070134Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "StateBoardOfAdministrationFinanceCorpSeriesA5526070134Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "State Board of Administration Finance Corp Series A 5 526 07 01 34 [Member]" } } }, "auth_ref": [] }, "af_StateOfIllinoisSeriesB5000050134Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "StateOfIllinoisSeriesB5000050134Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "State of Illinois Series B 5 000 05 01 34 [Member]" } } }, "auth_ref": [] }, "af_SumitomoBakeliteCoLtdJapanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "SumitomoBakeliteCoLtdJapanMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Sumitomo Bakelite Co Ltd Japan [Member]" } } }, "auth_ref": [] }, "oef_SummaryOfChngLegendTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "SummaryOfChngLegendTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Summary of Change Legend [Text Block]" } } }, "auth_ref": [ "r68" ] }, "af_TTMTechnologiesIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TTMTechnologiesIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "TTM Technologies Inc [Member]" } } }, "auth_ref": [] }, "af_TekscendPhotomaskCorpJapanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TekscendPhotomaskCorpJapanMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Tekscend Photomask Corp Japan [Member]" } } }, "auth_ref": [] }, "af_TenetHealthcareCorp5500111532Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TenetHealthcareCorp5500111532Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Tenet Healthcare Corp 5 500 11 15 32 [Member]" } } }, "auth_ref": [] }, "af_TexasPrivateActivityBondSurfaceTransportationCorp5000063058Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TexasPrivateActivityBondSurfaceTransportationCorp5000063058Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Texas Private Activity Bond Surface Transportation Corp 5 000 06 30 58 [Member]" } } }, "auth_ref": [] }, "af_TheCharlesSchwabCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TheCharlesSchwabCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "The Charles Schwab Corp [Member]" } } }, "auth_ref": [] }, "af_TobaccoSettlementMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TobaccoSettlementMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Tobacco Settlement [Member]" } } }, "auth_ref": [] }, "af_TotalEnergyServicesIncCanadaMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TotalEnergyServicesIncCanadaMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Total Energy Services Inc Canada [Member]" } } }, "auth_ref": [] }, "dei_TradingSymbol": { "xbrltype": "tradingSymbolItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "TradingSymbol", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Trading Symbol", "terseLabel": "Ticker", "documentation": "Trading symbol of an instrument as listed on an exchange." } } }, "auth_ref": [] }, "af_TransDigmInc6625030132Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "TransDigmInc6625030132Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "TransDigm Inc 6 625 03 01 32 [Member]" } } }, "auth_ref": [] }, "us-gaap_TransportationSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "TransportationSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Transportation Sector [Member]", "documentation": "Sector of economy consisting of companies engaged in business activity related to transportation." } } }, "auth_ref": [ "r86", "r87", "r88", "r89" ] }, "af_UHaulHoldingCoNonVotingSharesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "UHaulHoldingCoNonVotingSharesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "U Haul Holding Co Non Voting Shares [Member]" } } }, "auth_ref": [] }, "af_UHaulHoldingCoNonVotingSharesUnitedStatesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "UHaulHoldingCoNonVotingSharesUnitedStatesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "U Haul Holding Co Non Voting Shares United States [Member]" } } }, "auth_ref": [] }, "country_US": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "US", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "UNITED STATES" } } }, "auth_ref": [] }, "us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "USGovernmentCorporationsAndAgenciesSecuritiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "US Government Corporations and Agencies Securities [Member]", "documentation": "This category includes information about debt issued by US Government Corporations and Agencies. Investments in such US Government Corporations may include debt securities issued by the Government National Mortgage Association (Ginnie Mae) and by the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac)." } } }, "auth_ref": [ "r83" ] }, "oef_UpdPerfInfoLocationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdPerfInfoLocationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Performance Information Location [Text Block]" } } }, "auth_ref": [ "r51" ] }, "oef_UpdProspectusEmailAddress": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdProspectusEmailAddress", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Prospectus Email Address" } } }, "auth_ref": [ "r68" ] }, "oef_UpdProspectusPhoneNumber": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdProspectusPhoneNumber", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Prospectus Phone Number" } } }, "auth_ref": [ "r68" ] }, "oef_UpdProspectusWebAddress": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdProspectusWebAddress", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Prospectus Web Address" } } }, "auth_ref": [ "r68" ] }, "oef_UtilitiesSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UtilitiesSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Utilities Sector [Member]" } } }, "auth_ref": [ "r60" ] }, "af_ValvolineIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ValvolineIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Valvoline Inc [Member]" } } }, "auth_ref": [] }, "af_VentureGlobalLNGInc8375060131Member": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "VentureGlobalLNGInc8375060131Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Venture Global LNG Inc 8 375 06 01 31 [Member]" } } }, "auth_ref": [] }, "af_VeracyteIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "VeracyteIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Veracyte Inc [Member]" } } }, "auth_ref": [] }, "af_ViaviSolutionsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "ViaviSolutionsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Viavi Solutions Inc [Member]" } } }, "auth_ref": [] }, "af_VoyaFinancialIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "VoyaFinancialIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Voya Financial Inc [Member]" } } }, "auth_ref": [] }, "af_WaterMember": { "xbrltype": "domainItemType", "nsuri": "http://www.wealth.amg.com/20260827", "localname": "WaterMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Water [Member]" } } }, "auth_ref": [] }, "oef_WithSalesLoadMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "WithSalesLoadMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "With Sales Load [Member]" } } }, "auth_ref": [ "r52" ] }, "oef_WithoutSalesLoadMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "WithoutSalesLoadMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Without Sales Load [Member]" } } }, "auth_ref": [ "r52" ] } } } }, "std_ref": { "r0": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "SubTopic": "30", "Topic": "205", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479910/205-30-50-1" }, "r1": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "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" }, "r2": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r3": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r4": { "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" }, "r5": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r6": { "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 1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r7": { "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" }, "r8": { "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" }, "r9": { "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 7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r10": { "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" }, "r11": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "5D", "Subparagraph": "(SX 210.12-13D(Column A)(Footnote 2)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5D" }, "r12": { "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" }, "r13": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column A))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r14": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column B))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r15": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column C))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r16": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column D))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r17": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column A))", "SubTopic": "320", "Topic": "946", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r18": { "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" }, "r19": { "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" }, "r20": { "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" }, "r21": { "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" }, "r22": { "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" }, "r23": { "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" }, "r24": { "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" }, "r25": { "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" }, "r26": { "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" }, "r27": { "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" }, "r28": { "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" }, "r29": { "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" }, "r30": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b-2" }, "r31": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "d1-1" }, "r32": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "1", "Subsection": "a", "Paragraph": "1" }, "r33": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "1" }, "r34": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "3" }, "r35": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "4" }, "r36": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "5" }, "r37": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "instruction", "Subparagraph": "2" }, "r38": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c" }, "r39": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "ii" }, "r40": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "iii" }, "r41": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "instruction", "Sentence": "1", "Clause": "b" }, "r42": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "instruction", "Subparagraph": "1", "Clause": "c" }, "r43": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "instruction", "Subparagraph": "1", "Clause": "d" }, "r44": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "1" }, "r45": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2" }, "r46": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "i" }, "r47": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "iii", "Clause": "B" }, "r48": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "iiii", "Clause": "A" }, "r49": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "12" }, "r50": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "14" }, "r51": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "15" }, "r52": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "7" }, "r53": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "8" }, "r54": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "3" }, "r55": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "4" }, "r56": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "4", "Subparagraph": "instruction", "Clause": "3" }, "r57": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "4", "Subparagraph": "instruction", "Clause": "4" }, "r58": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "e" }, "r59": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "e", "Paragraph": "instruction", "Subparagraph": "6" }, "r60": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "f" }, "r61": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g" }, "r62": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "1" }, "r63": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "2" }, "r64": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "3" }, "r65": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "4" }, "r66": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "5" }, "r67": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "6" }, "r68": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "instruction", "Subparagraph": "2" }, "r69": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "h", "Paragraph": "1" }, "r70": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "h", "Paragraph": "2" }, "r71": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "3", "Subsection": "instruction", "Paragraph": "1", "Subparagraph": "d", "Sentence": "i" }, "r72": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "4", "Subsection": "b", "Paragraph": "2", "Subparagraph": "i" }, "r73": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "4", "Subsection": "b", "Paragraph": "2", "Subparagraph": "iii" }, "r74": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-T", "Number": "232", "Section": "313" }, "r75": { "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" }, "r76": { "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" }, "r77": { "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" }, "r78": { "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" }, "r79": { "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" }, "r80": { "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" }, "r81": { "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" }, "r82": { "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" }, "r83": { "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" }, "r84": { "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" }, "r85": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "27", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478494/946-205-50-27" }, "r86": { "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 A)(Footnote 2)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r87": { "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 A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r88": { "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 A)(Footnote 1)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r89": { "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 A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" } } }