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[Member] Reclassification adjustment for (gain) on securities, net of tax of $412 and $0 for the three months ended March 31, 2026, and March 31, 2025, respectively Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Tabular List, Table Tabular List [Table Text Block] Time deposits, individual retirement account Interest-Bearing Domestic Deposit, Other Time Deposit Adoption of new accounting standards and Newly issued not yet adopted accounting standards New Accounting Pronouncements, Policy [Policy Text Block] Finance Leases Finance Lease, Liability [Abstract] Other Other Expenses Measurement Basis [Axis] Measurement Basis [Axis] Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Recoveries Financing Receivable, Excluding Accrued Interest, 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Risks, Face Amount, Liability Proceeds from sale of securities available-for-sale, net Proceeds from sales Proceeds from Sale of Debt Securities, Available-for-Sale Securities available-for-sale, at fair value Estimated fair values Fair Value Fair Value Debt Securities, Available-for-Sale, Excluding Accrued Interest Proceeds from sale of OREO property Proceeds from Sale of Other Real Estate Preferred stock, par value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Net interest income Interest Income (Expense), Operating Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Actual Amount Banking Regulation, Tier 1 Risk-Based Capital, Actual Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] 2030 Finance Lease, Liability, to be Paid, Year Four Remaining nine months ending, December 31, 2026 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Derivative liability, fair value Derivative Liability, Subject to Master Netting Arrangement, before Offset Equity Components [Axis] Equity Components [Axis] Year Four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Reclassification adjustment for loss (gain) on securities, tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Number of reportable segments Number of Reportable Segments Amortization of debt discount (premium) Debt Instrument, Unamortized Discount (Premium), Net Entity Address, State or Province Entity Address, State or Province Substandard Substandard [Member] Repayment of finance lease liabilities Financing cash flows from finance leases Finance Lease, Principal Payments Special Mention Special Mention [Member] Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Loans, net Loans Receivable, Fair Value Disclosure Individual: Individual [Axis] Operating Leases Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Abstract] Unconsolidated Subsidiary Trusts Unconsolidated Subsidiary Trusts [Member] Unconsolidated Subsidiary Trusts Right-of-use assets obtained in exchange for new finance lease liabilities Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Entity Interactive Data Current Entity Interactive Data Current Year to date gross charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Realized loss on sales of OREO property Gains (Losses) on Sales of Other Real Estate Interest income Interest and Dividend Income, Operating [Abstract] Total 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Disclosures of Cash Flow Information Supplemental Cash Flow Elements [Abstract] Schedule of Financing Receivable Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Other comprehensive income (loss), net of tax: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Minimum Required Capital - Basel III Amount Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum Non-interest-bearing deposits Noninterest-Bearing Deposit Liabilities Schedule of Other Operating Expense Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Unrecognized compensation costs Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Subsequent Event Type [Axis] Subsequent Event Type [Axis] Net increase (decrease) in interest-bearing accounts Net Change Interest-Bearing Deposits, Domestic Interest paid on short-term borrowings Interest Paid, Short-Term Borrowings Interest Paid, Short-Term Borrowings 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Three Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Interest-earning deposits with banks Bank Time Deposits [Member] Beginning of period Finite-Lived Intangible Assets, Gross 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] Entity Address, Address Line One Entity Address, Address Line One 2019 And 2023 Stock Incentive Plan 2019 And 2023 Stock Incentive Plan [Member] 2019 And 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[Table] Options effect of dilutive shares (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Expected common stock volatility (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Minimum Required Capital - Basel III Ratio (as a percent) Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum Lease liabilities: Operating and Finance Lease, Liability [Abstract] Operating and Finance Lease, Liability Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Document Quarterly Report Document Quarterly Report Less Than Twelve Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss 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Agency Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount 2019 SAR SAR 2019 Plan [Member] SAR 2019 Plan Impairment existed based on a combination of factors Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not to Sell before Recovery, Credit Loss, Previously Recorded, Expense (Reversal) Non-PEO NEO Non-PEO NEO [Member] Amount of gain or (loss) reclassified from AOCI into income as a result that a forecasted transaction is no longer probable of occurring Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), Adjustments, before Tax Other interest income Interest Income, Other Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Lease liability arising from obtaining 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Recovery Compensation Amount Minimum Required to be Well Capitalized Amount Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Expected dividend yield (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Minimum Required Capital - Basel III Ratio (as a percent) Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy With Buffer, Minimum Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy With Buffer, Minimum Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Fair Value Amount Estimate of Fair Value Measurement [Member] Outstanding (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option, Outstanding, Weighted Average Remaining Contractual Terms Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option, Outstanding, Weighted 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[Roll Forward] Goodwill [Roll Forward] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Unrealized gain (loss) on cash flow hedge: Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract] Weighted average dilutive shares (in shares) Weighted Average Number of Shares Outstanding, Diluted Interest rate for short-term debt Short-Term Debt, Weighted Average Interest Rate, at Point in Time Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Exercisable (in years) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Exercisable, Weighted Average Remaining Contractual Terms Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Exercisable, Weighted Average Remaining Contractual Terms Entity Small Business Entity Small Business Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report One to Five Years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Schedule of Fair Value Disclosure of Asset and Liability not Measured at Fair Value Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table Text Block] Total undiscounted lease payments Finance Lease, Liability, to be Paid Underlying Securities Award Underlying Securities Amount Gross realized gains Debt Securities, Available-for-Sale, Realized Gain Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Repayment of operating lease liabilities Increase (Decrease) in Operating Lease Liability Document Type Document Type Outstanding balance at the beginning (in shares) Outstanding balance at the end (in shares) Share-Based 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Investments Originations of loans held-for-sale Payment for Origination and Purchase, Loan, Held-for-Sale Name Trading Arrangement, Individual Name Loans acquired/transferred to real estate owned Other Real Estate, Additions Schedule of Short-Term Debt [Table] Short-Term Debt [Table] Loans held-for-sale Loan, Held-for-Sale, Fair Value Disclosure Net increase in non-interest-bearing accounts Net Change Noninterest-Bearing Deposits, Domestic Debt instrument, face amount Debt Instrument, Face Amount Changes in pension plan benefits, net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Statement of Comprehensive Income [Abstract] Thereafter Time Deposit Maturities, After Year Four Time Deposit Maturities, After Year Four Name Awards Close in Time to MNPI Disclosures, Individual Name Beginning nonvested (in dollars per share) Ending nonvested (in dollars per share) Fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Reclassification adjustment for loss (gain) on a fair value hedge, tax Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), Reclassification, Tax Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), Reclassification, Tax Credit Loss [Abstract] Unrealized gain (loss) arising during period, tax OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax Schedule of Finance Lease, Liability, to be Paid, Maturity Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Interest paid on subordinated debt and trust preferred securities Interest Paid, Subordinated Notes And Debentures, And Trust Preferred Securities Interest Paid, Subordinated Notes And Debentures, And Trust Preferred Securities Lessor, Lease, Description [Table] Lessor, Lease, Description [Table] Income Statement Location [Axis] Statement of Income Location, Balance [Axis] Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Non-credit discount/(premium) at acquisition Financing Receivable, Purchased with Credit Deterioration, Discount (Premium) Unrealized Gains and Losses on Available-for-Sale Securities Available-for-sale securities: AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Single family residential (1-4 units) Single family residential One to Four Family Residential Loans [Member] One to Four Family Residential Loans Interest expense Interest Expense, Operating and Nonoperating [Abstract] Donation expense Donation Expense Donation Expense Purchases of securities available-for-sale, net Payments to Acquire Debt Securities, Available-for-Sale Preferred stock and related surplus, $1.00 par value per share; 2,000,000 shares authorized; 1,500 shares issued and outstanding at March 31, 2026; 1,500 shares issued and outstanding at December 31, 2025 Preferred Stock, Value, Issued Obligations of states and municipalities US States and Political Subdivisions Debt Securities [Member] Subordinated debentures, net Subordinated Debt Weighted Average Remaining Contractual Terms Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Weighted Average Remaining Contractual Terms [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Weighted Average Remaining Contractual Terms Year Two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Proceeds from employee stock purchase program Proceeds from Stock Plans Subordinated debentures Subordinated Debt [Member] Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] All Executive Categories All Executive Categories [Member] Common Stock $0.50 par value; 40,000,000 shares authorized, 15,617,231 shares issued and 15,045,941 shares outstanding at March 31, 2026; 40,000,000 shares authorized, 15,599,814 shares issued and 15,028,524 shares outstanding at December 31, 2025 Common Stock, Value, Issued Finance leases Finance Lease, Right-of-Use Asset, after Accumulated Amortization Taxable loans, including fees Interest and Fee Income, Loans and Leases Derivatives designated as hedging instruments Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Commitments and contingent liabilities (see Note 10) Commitments and Contingencies Thereafter Lessor, Operating Lease, Payment to be Received, after Year Four Lessor, Operating Lease, Payment to be Received, after Year Four Year One Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Business Combination [Axis] Business Combination [Axis] Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Valuation Technique, Appraisal Of Collateral For Liquidity Valuation Technique, Appraisal Of Collateral For Liquidity [Member] Valuation Technique, Appraisal Of Collateral For Liquidity Exercised (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Exercised In Period, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Exercised In Period, Weighted Average Exercise Price Granted (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Grants In Period, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Grants In Period, Weighted Average Exercise Price Interest Income Interest Income [Member] Short-Term Debt [Line Items] Short-Term Debt [Line Items] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount After Ten Years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 60 - 89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Hedging Designation [Axis] Hedging Designation [Axis] Amortization of housing tax credits Amortization Of Housing Tax Credits Amortization Of Housing Tax Credits Amount of Gain or (Loss) Reclassified from AOCI into Income Amount of gain or (loss) reclassified from AOCI into income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Derivative Contract [Domain] Derivative Contract [Domain] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Issuance of common stock Proceeds from Issuance of Common Stock Gross realized losses Debt Securities, Available-for-Sale, Realized Loss All Individuals All Individuals [Member] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Expirations Purchases of property and equipment, net of disposals Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Award expiration period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Fair Value Total amortized cost Financing Receivable, Individually Evaluated for Credit Loss Cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Share-based compensation expense, net (in shares) Shares Granted, Shares, Share-Based Payment Arrangement, After Forfeiture Shares Granted, Shares, Share-Based Payment Arrangement, After Forfeiture Deposit liabilities reclassified as loans receivable Deposit Liabilities Reclassified as Loans Receivable Purchase price of common stock (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Year Five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Thereafter Lessee, Operating Lease, Liability, to be Paid, Due after Year Four Lessee, Operating Lease, Liability, to be Paid, Due after Year Four Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract] Commercial & industrial Commercial Portfolio Segment [Member] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Changes in pension plan benefits, net of tax of $— and $— for the three months ended March 31, 2026, and March 31, 2025, respectively Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Leased Property Lessor, Operating Leases [Text Block] Loss Unlikely to be Collected Financing Receivable [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Total interest income Interest income Interest Income, Operating Title of 12(b) Security Title of 12(b) Security Other Expense Other Expense [Member] Service charges and fees Service, Other [Member] Total lease liabilities Lease, Liability Lease, Liability Equipment rentals, depreciation and maintenance Equipment Expense Earnings per common share: Earnings Per Share [Abstract] Subsidiary, ownership percentage, parent (as a percent) Subsidiary, Ownership Percentage, Parent Preferred Stock and Surplus Preferred Stock Including Additional Paid in Capital [Member] Year Three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Total amounts of income and expense line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded Gain (Loss) on Fair Value Hedges Recognized in Earnings Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures Expired (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Expired In Period, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Expired In Period, Weighted Average Exercise Price Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Award Timing Disclosures [Line Items] Piedmont Wealth Management Burke & Herbert Wealth Services, LLC, Formerly Piedmont Wealth Management [Member] Burke & Herbert Wealth Services, LLC, Formerly Piedmont Wealth Management Measurement Frequency [Domain] Measurement Frequency [Domain] Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised Net loans Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Net income Net income Net income Net Income (Loss) Attributable to Parent Proceeds from company-owned life insurance Payments for (Proceeds from) Life Insurance Policies Operating Leases Operating Lease, Liability [Abstract] ATM, card and network expense ATM, Card And Network Expense ATM, Card And Network Expense Actual Ratio (as a percent) Banking Regulation, Total Risk-Based Capital Ratio, Actual Award vesting period (in years) # of years to full vesting (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Adoption Date Trading Arrangement Adoption Date Interest-bearing deposits Interest-Bearing Deposits [Member] Operating lease term Lessee, Operating Lease, Term of Contract Retained earnings Retained Earnings (Accumulated Deficit) Total right-of-use assets Lease, Right-of-Use Asset Lease, Right-of-Use Asset 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] Gains and Losses on Cash Flow Hedges Cash flow hedges: Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Impairment Impairment of Intangible Assets, Finite-Lived Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Thereafter Finite-Lived Intangible Asset, Expected Amortization, After Year Four Finite-Lived Intangible Asset, Expected Amortization, After Year Four Statement [Table] Statement [Table] Consultant fees Consultant Fees Consultant Fees Deferred tax expense (benefit) Deferred Income Tax Expense (Benefit) Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash Flows from Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Direct write-downs Other Real Estate, Write Down Other Real Estate, Write Down Accretion income related to acquired loans Accretion Income From Acquired Loans Accretion Income From Acquired Loans Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract] All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Total income tax benefit Share-Based Payment Arrangement, Expense, Tax Benefit Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Salaries and wages Salary and Wage, Excluding Cost of Good and Service Sold Shares authorized to be issued (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Treasury stock 571,290 shares, at cost, at March 31, 2026, and 571,290 shares, at cost, at December 31, 2025 Treasury Stock, Common, Value Amortized Cost Financing Receivable, Individually Evaluated, with Allowance for Credit Loss Termination Date Trading Arrangement Termination Date Interest-earning deposits with banks Interest-Bearing Deposits in Banks and Other Financial Institutions Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] 2029 Time Deposit Maturities, Year Three Allowance for credit losses Allowance for credit losses Balance, beginning of period Balance, end of period Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Operating lease weighted average discount rate (as a percent) Operating Lease, Weighted Average Discount Rate, Percent Weighted average number of shares (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Segment Reporting [Abstract] Debt Disclosure [Abstract] Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table] Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Consolidated Entities [Axis] Consolidated Entities [Axis] Common stock, par value per share (in dollars per share) Common Stock, Par or Stated Value Per Share Total fair value exercised Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Exercised In Period, Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Exercised In Period, Fair Value Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Number of maturity (in years) Banking Regulation, Tier 2 Risk-Based Capital, Period To Maturity Banking Regulation, Tier 2 Risk-Based Capital, Period To Maturity Actual Amount Banking Regulation, Total Capital, Actual Interest paid on finance leases Operating cash flows from finance leases Finance Lease, Interest Payment on Liability Cash dividends paid Payments of Dividends Occupancy Occupancy, Net Weighted average price of shares purchased (in dollars per share) Employee Stock Ownership Plan (ESOP), Weighted Average Purchase Price of Shares Purchased Insider Trading Arrangements [Line Items] Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Shares SARs Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Current Loans Financial Asset, Not Past Due [Member] Allowance for credit loss on available for sale debt securities Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Total Liabilities Liabilities Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Proceeds from calls and maturities Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Vested Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Vested Asset-backed Asset-Backed Securities [Member] Subordinated debt Interest Expense, Subordinated Notes and Debentures Counterparty Name [Axis] Counterparty Name [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member]