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and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Net Interest Income Interest Income (Expense), Operating MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Document Type Document Type Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant 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Category: Executive Category [Axis] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Tax effect Other Comprehensive Income (Loss), Tax Other Commitments [Table] Other Commitments [Table] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Gain on sale of loans Gain (Loss) on Sales of Loans, Net Level 3 Fair Value, Inputs, Level 3 [Member] Asset Pledged as Collateral Asset Pledged as Collateral [Member] Supplemental Cash Flow Information: Supplemental Cash Flow Information [Abstract] Purchase of treasury shares (in shares) Treasury Stock, Shares, Acquired PEO Name PEO Name Geographical [Axis] Geographical [Axis] Liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Cash paid for income taxes Income Tax Paid, before Refund Received Home equity Home Equity Line of Credit [Member] Other assets Other Assets Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 30-59 Past Due Financial Asset, 30 to 59 Days Past Due [Member] Entity Tax Identification Number Entity Tax Identification Number Cash and due from banks Cash and Due from Banks Legal Entity [Axis] Legal Entity [Axis] Financing Receivable, Past Due Financing Receivable, Past Due [Table Text Block] Current Loans Financial Asset, Not Past Due [Member] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Type [Axis] Liability Class [Axis] Other Commitments [Line Items] Other Commitments [Line Items] Excess tax expense from stock-compensation Share-Based Payment Arrangement, Expense, Tax Benefit Purchase of treasury shares Treasury Stock, Value, Acquired, Cost Method Non-Interest Income Noninterest Income [Abstract] Cash and cash equivalents at beginning of period Cash and Cash Equivalents at End of Period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Financing receivable, threshold period past due Financing Receivable, Threshold Period Past Due Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Bank owned  life insurance Bank Owned Life Insurance Income Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Hotels Commercial Real Estate: Hotels [Member] Commercial Real Estate: Hotels Schedule of Amounts Reclassified Out Of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Financing Receivable, Allowance for 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Purchases of treasury stock Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Customer repurchase agreements Short-Term Debt, Fair Value Change In Fair Value Of Derivative Instruments Derivative Instruments, Gain (Loss) [Table Text Block] Award Type [Axis] Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Bank owned life insurance Bank Owned Life Insurance Product and Service [Axis] Product and Service [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Investment securities available for sale, at fair value (amortized cost $1,631,118 and $1,602,721, net of allowance for credit losses of $0 at September 30, 2026 and December 31, 2025, respectively) Estimated Fair Value Total Debt Securities, Available-for-Sale Fair Value, Disclosure Item Amounts [Domain] Fair Value Measurement [Domain] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] Derivative Contract Type [Domain] Derivative Contract [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Total Past Due Financial Asset, Past Due [Member] Net realized available for sale securities gains (losses) Debt Securities, Available-for-Sale, Realized Gain (Loss) Derivative assets Derivative Financial Instruments, Assets [Member] Total Liabilities and Shareholders’ Equity Liabilities and Equity Goodwill and other intangible assets, net Intangible Asset, Including Goodwill, after Accumulated Amortization Employee Stock Option Share-Based Payment Arrangement, Option [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Change in other liabilities Increase (Decrease) in Other Operating Liabilities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Type [Axis] Asset Class [Axis] Pass Pass [Member] Summary of Major Classifications for Loans Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Tabular List, Table Tabular List [Table Text Block] Gross Unrealized Losses And Fair Value Of Investments Unrealized Gain (Loss) on Investments [Table Text Block] Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Gross unrealized losses recognized on equity securities still held Equity Securities, FV-NI, Unrealized Loss Name Awards Close in Time to MNPI Disclosures, Individual Name Loan interest rate swap - liabilities Financial Institution Counterparties Loan Interest Rate Swap Liabilities [Member] Financial Institution Counterparties Loan Interest Rate Swap Liabilities [Member] Real Estate Properties [Line Items] Real Estate Properties [Line Items] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Non Residential Owner Occupied Commercial Real Estate: Non Residential Owner Occupied [Member] Commercial Real Estate: Non Residential Owner Occupied Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Liability Types [Domain] Fair Value by Liability Class [Domain] Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Gross Gains And Losses Realized Schedule of Realized Gain (Loss) [Table Text Block] Derivative Instruments Derivatives and Fair Value [Text Block] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Preferred stock, par value $25 per share: 500,000 shares authorized; none issued Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Amounts reclassified from other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Hedging Designation [Domain] Hedging Designation [Domain] Derivative liabilities Derivative Financial Instruments, Liabilities [Member] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Accumulated other comprehensive loss: Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Less: earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Loan interest rate swap - liabilities Customer Counterparties Loan Interest Rate Swap Liabilities [Member] Customer Counterparties Loan Interest Rate Swap Liabilities [Member] Hedging Designation [Axis] Hedging Designation [Axis] 60-89 Past Due Financial Asset, 60 to 89 Days Past Due [Member] Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred Stock, Number of Shares, Par Value and Other Disclosure [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Assets, fair value Assets, Fair Value Disclosure Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Demand deposits Demand Deposit Accounts Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Interest and fees on loans Interest and Fee Income, Financing Receivable Capital Surplus Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Estimated Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Accrued interest receivable Interest Receivable Name Trading Arrangement, Individual Name Unrecognized stock-based compensation expense associated with restricted shares Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Estimated range of unemployment Financing Receivable, Estimate, Expected Unemployment Range, Period Financing Receivable, Estimate, Expected Unemployment Range, Period Advertising Advertising Expense Cash and Cash Equivalents Cash and Cash Equivalent Gains on sale of investment securities, net Debt and Equity Securities, Gain (Loss) Company Selected Measure Amount Company Selected Measure Amount Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Non-hedging interest rate derivatives: Not Designated as Hedging Instrument [Member] Unrealized gains (losses) recognized on equity securities still held, net Net unrealized (losses) gains recognized on equity securities still held Equity Securities, FV-NI, Unrealized Gain (Loss) Increase in value of bank-owned life insurance Life Insurance, Corporate or Bank Owned, Change in Value Combined Federal and State income tax rate (percent) Combined Federal And State Income Tax Rate Combined Federal And State Income Tax Rate Other assets Derivative liabilities Derivative Liability Non-PEO NEO Non-PEO NEO [Member] Extraordinary Charges Recognition Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Entity Address, Address Line One Entity Address, Address Line One Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Bankcard expenses Bankcard Expenses Bankcard Expenses Income tax expense Income Tax Expense (Benefit) Total Non-Interest Expense Noninterest Expense Gross Charge-Offs Gross Charge-Offs [Member] Gross Charge-Offs Effect of dilutive securities: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Award Timing Method Award Timing Method [Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] City National City National [Member] City National [Member] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Threshold period for discontinuance of interest accrual Threshold Period for Discontinuance of Interest Accrual Threshold Period for Discontinuance of Interest Accrual Net gain arising during period Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Net amortization and deferral Defined Benefit Plan, Amortization of Gain (Loss) Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net Income Available to Common Shareholders Net income available to common shareholders Net income Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Proceeds from the disposals of premises and equipment Proceeds from Sale of Property, Plant, and Equipment Statement [Table] Statement [Table] 2025/2024 Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Restatement Determination Date: Restatement Determination Date [Axis] Undistributed earnings allocated to common stock Undistributed Earnings, Diluted Collateral dependent loans Financing Receivable, Collateral Dependent Financing Receivable, Collateral Dependent Schedule of Changes In Each Component of Accumulated Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Financing Receivable, Nonaccrual Financing Receivable, Nonaccrual [Table Text Block] Financing Receivable, Allowance for Credit Loss, Recovery Financing Receivable, Allowance for Credit Loss, Recovery Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Collateral received Collateral Already Posted, Aggregate Fair Value Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Chief Executive Officer [Member]