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Obligations [Member] Schedule of Lessee, Operating Lease, Liability, Maturity Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Dividends from bank subsidiary Dividend Income, Operating Minimum Required for Capital Adequacy Purposes (includes applicable capital conservation buffer) Ratio 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 Interest income Income Interest and Dividend Income, Operating [Abstract] Salaries and wages Salary and Wage, Excluding Cost of Good and Service Sold Schedule of Impact of Adoption of CECL Accounting Standards Update and Change in Accounting Principle [Table Text Block] Outstanding 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 Average Remaining Contractual Terms PEO PEO [Member] Subordinated Debentures, Issued in Fourth Quarter of 2021 Subordinated Debentures, Issued In Fourth Quarter Of 2021 [Member] Subordinated Debentures, Issued In Fourth Quarter Of 2021 Allowance for credit losses at acquisition Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date Name Trading Arrangement, Individual Name Funded status recognized as accrued pension cost Defined Benefit Plan, Funded (Unfunded) Status of Plan Deposits Interest Expense, Deposits Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Other operating Total Other Noninterest Expense Transfers from portfolio loans to loans held-for-sale Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale Entity Public Float Entity Public Float Minimum Required to be Well Capitalized Amount Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum 2028 Lessor, Operating Lease, Payment to be Received, Year Four Equity in undistributed earnings of subsidiary Income (Loss) from Equity Method Investments Debt securities available-for-sale, impairment Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not to Sell before Recovery, Credit Loss, Previously Recorded, Expense (Reversal) Treasury stock 571,290 shares, at cost, at December 31, 2024, and 571,290 shares, at cost, at December 31, 2023 Treasury Stock, Common, Value Income (loss) before income tax benefit and equity in undistributed income of subsidiaries Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Benefit obligation at beginning of year Benefit obligation at end of year Defined Benefit Plan, Benefit Obligation Total amounts of income and expense line items presented in the statement of financial performance in which the effects of fair value or cash flow hedges are recorded. Gain (Loss) on Fair Value Hedges Recognized in Earnings Taxable loans, including fees Interest and Fee Income, Loans and Leases Securities and loans pledged Federal Home Loan Bank and Unsecured Federal Funds, Advances, General Debt Obligations, Disclosures, Collateral Pledged Federal Home Loan Bank and Unsecured Federal Funds, Advances, General Debt Obligations, Disclosures, Collateral Pledged Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Number of shares reserved for issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Interest-bearing deposits with banks Cash and Cash Equivalents, Fair Value Disclosure Tier 2 capital reduction (as a percent) Banking Regulation, Tier 2 Risk-Based Capital, Annual Reduction In Qualifying Amount, Percentage Banking Regulation, Tier 2 Risk-Based Capital, Annual Reduction In Qualifying Amount, Percentage SFG Capital Trust I SFG Capital Trust I [Member] SFG Capital Trust I Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Local Phone Number Local Phone Number Equity in undistributed income of subsidiaries Equity In Undistributed Income Of Subsidiaries Equity In Undistributed Income Of Subsidiaries Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Reserves under CECL Model Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Total Expense Operating Expenses Provision for (recapture of) credit losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Credit loss expense (recapture) - loans and available-for-sale securities Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans And Debt Securities Available-For-Sale Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans And Debt Securities Available-For-Sale Year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Schedule of Fair Value, off-Balance-Sheet Risks Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Purchase price of common stock (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Interest Income Interest Income [Member] Occupancy Occupancy, Net Derivative liability, fair value Derivative Liability, Subject to Master Netting Arrangement, before Offset Expected Burke & Herbert common stock to be issued (in shares) Consideration payable (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Safety deposit fees Safety Deposit Fees [Member] Safety Deposit Fees Securities available-for-sale, at fair value Fair Value Total Debt Securities, Available-for-Sale, Excluding Accrued Interest Lessor, Lease, Description [Table] Lessor, Lease, Description [Table] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Exercisable SARs 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 Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Entity Ex Transition Period Entity Ex Transition Period Actual Ratio Banking Regulation, Total Risk-Based Capital Ratio, Actual Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Debt 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[Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Segment Information Segment Reporting Disclosure [Text Block] Nontaxable income from company-owned life insurance Effective Income Tax Rate Reconciliation, Nontaxable Income, Life Insurance, Amount Effective Income Tax Rate Reconciliation, Nontaxable Income, Life Insurance, Amount Minimum Required for Capital Adequacy Purposes (includes applicable capital conservation buffer) Ratio Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum Share-based compensation expense, net APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Audit expense Professional Fees Measurement Basis [Axis] Measurement Basis [Axis] Salary and Wage, Excluding Cost of Good and Service Sold, Employee Benefits and Share-Based Compensation, Occupancy, Net, and Equipment Expense Salary And Wage, Excluding Cost Of Good And Service Sold, Employee Benefits And Share-Based Compensation, Occupancy, Net, And Equipment Expense [Member] Salary And Wage, Excluding Cost Of Good And Service Sold, Employee Benefits And Share-Based Compensation, Occupancy, Net, And Equipment Expense Loans, net Loans Receivable, Fair Value Disclosure Title Trading Arrangement, Individual Title Schedule of Pension Plan Asset Allocations Defined Benefit Plan, Plan Assets, Allocation [Table Text Block] Consolidated Entities [Axis] Consolidated Entities [Axis] Exercisable (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercisable Uncertain tax positions Unrecognized Tax Benefits City Area Code City Area Code Auditor Location Auditor Location Investment Program Proportional Amortization Method Applied Income Tax Credit And Other Tax Benefit Amortization Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag Investment Program Proportional Amortization Method Applied Income Tax Credit And Other Tax Benefit Amortization Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag Investment Program Proportional Amortization Method Applied Income Tax Credit And Other Tax Benefit Amortization Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag Unfunded Loan Commitment Unfunded Loan Commitment [Member] 2026 Time Deposit Maturities, Year Two Restricted stock, at cost Restricted Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Other Expense Other Expense [Member] Charge-offs Total Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Forfeited (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Forfeited In Period, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Forfeited In Period, Weighted Average Exercise Price Pension plan and 401(k) plan & other plans Pension and Other Postretirement Plans, Policy [Policy Text Block] Schedule of Fair Value Measurement Inputs and Valuation Techniques Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Weighted-Average Grant-Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Company-owned life insurance Bank Owned Life Insurance Earnings per common share: Earnings Per Share [Abstract] Equity [Abstract] Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Retained earnings Decrease in retained earnings, net of deferred taxes Retained Earnings (Accumulated Deficit) Finance lease, right-of-use asset, statement of financial position [extensible enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Schedule of Reclassification out of Accumulated Other Comprehensive Income (Loss) Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Preferred stock issued for merger, net Stock Issued, Preferred Stock Issued, Preferred Cash flow hedge gain (loss) to be reclassified within 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Credit Loss Status [Domain] Credit Loss Status [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Supplemental Disclosures of Cash Flow Information Supplemental Cash Flow Elements [Abstract] 2026 Long-Term Debt, Maturity, Year Two Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Schedule of Short-Term Debt Schedule of Short-Term Debt [Table Text Block] Equity Awards Adjustments Equity Awards Adjustments [Member] Operating leases Operating Lease, Liability Underlying Securities Award Underlying Securities Amount Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised Accrued interest Interest Payable And Other Liabilities, Fair Value Disclosure Interest Payable And Other Liabilities, Fair Value Disclosure 2029 Finance Lease, Liability, to be Paid, Year Five Cash dividends, declared Cash dividends, paid Dividends, Common Stock, Cash Other interest income Interest Income, Other Legal expense Legal Fees Amendment Flag Amendment Flag Carrying Amount Reported Value Measurement [Member] Minimum Required for Capital Adequacy Purposes (includes applicable capital conservation buffer) Amount Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy With Buffer, Minimum Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy With Buffer, Minimum Subordinated debentures Subordinated Debt [Member] (Gain) loss on disposal of fixed assets (Gain) / loss on sale or disposal of assets Gain (Loss) on Disposition of Property Plant Equipment Loans, gross Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Common Tier 1 (CET 1) to risk-weighted assets Banking Regulation, Common Equity Tier 1 Risk-Based Capital [Abstract] Appraisal of collateral Valuation Technique, Appraisal Of Collateral [Member] Valuation Technique, Appraisal Of Collateral Right-of-use asset amortization Finance Lease, Right-of-Use Asset, Amortization Debt securities & cash equivalents Defined Benefit Plan, Debt Security [Member] Recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Other Operating Expense Other Income and Other Expense Disclosure [Text Block] Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Substandard Substandard [Member] One Year or Less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Borrowed Funds Debt Disclosure [Text Block] Condensed Income Statement [Table] Condensed Income Statement [Table] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Collateral Held [Axis] Collateral Held [Axis] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Debt instrument, face amount Debt Instrument, Face Amount Loans Financing Receivable [Policy Text Block] Condensed Cash Flow Statements, Captions [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Entity Address, Postal Zip Code Entity Address, Postal Zip Code New loans Financing Receivable, Excluding Accrued Interest, Purchase Interest Rate Products Interest contracts Interest Rate Swap [Member] To Be Well Capitalized Under Prompt Corrective Action Regulations Amount Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum Accrued interest receivable on available-for-sale debt securities Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value FDIC assessment Federal Deposit Insurance Corporation Premium Expense Subordinated debt Interest Expense, Subordinated Notes and Debentures Leased Property Lessor, Operating Leases [Text Block] 2021 SAR SAR 2021 Plan [Member] SAR 2021 Plan Exercised Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Aggregate Intrinsic Value, Exercised Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Aggregate Intrinsic Value, Exercised Exercisable during period (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Annual Award Vesting Rights, Percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Annual Award Vesting Rights, Percentage 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] Investments in qualified affordable housing projects, amortization expense Investment Program, Proportional Amortization Method, Applied, Amortization Expense Auditor Name Auditor Name Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Current Expense: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] 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] State and Municipal Securities State and Municipal Securities [Member] State and Municipal Securities Useful life Property, Plant and Equipment, Useful Life Employee Stock Employee Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Schedule of Short-Term Debt [Table] Short-Term Debt [Table] Proceeds from employee stock purchase program Proceeds from Stock Plans Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Repayment of finance lease liabilities Financing cash flows from finance leases Finance Lease, Principal Payments Derivatives designated as hedges Designated as Hedging Instrument [Member] Lease term of contract Lessee, Lease, Term Of Contract Lessee, Lease, Term Of Contract Net income applicable to common shares Net income applicable to common shares (in thousands) Net Income (Loss) Available to Common Stockholders, Basic Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] 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] Total Assets Assets Total recognized in net periodic pension costs and other comprehensive loss Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax Reclassification adjustment for losses (gains) included in net income, tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Purchases of property and equipment, net of disposals Payments to Acquire Property, Plant, and Equipment Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Commitments and contingent liabilities (see Note 14) Commitments and Contingencies Reclassification adjustment for loss (gain) on securities, net of tax of $312 for 2024, $(24) for 2023, and ($95) for 2022 Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Schedule of Statutory Tax Rates to Income Before Taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Termination Date Trading Arrangement Termination Date Treasury stock transactions Proceeds From Sale (Payments For Repurchase) Of Treasury Stock, Including Adjustments Proceeds From Sale (Payments For Repurchase) Of Treasury Stock, Including Adjustments Related Party Transaction [Table] Related Party Transaction [Table] 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] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two Total identifiable assets acquired Business Combination, Provisional Information, Initial Accounting Incomplete, Assets And Goodwill Business Combination, Provisional Information, Initial Accounting Incomplete, Assets And Goodwill 2025 Long-Term Debt, Maturity, Year One Granted (or acquired) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Aggregate Intrinsic Value, Granted Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Aggregate Intrinsic Value, Granted Derivatives not designated as hedges Not Designated as Hedging Instrument [Member] One to Five Years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Net income Net Income Net income Net Income (Loss) Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] Revenue from contract with customer Revenue from Contract with Customer, Including Assessed Tax Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Following 5 years Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Non-accrual loans Financing Receivable, Nonaccrual Schedule of Fair Value of Plan Assets Schedule of Allocation of Plan Assets [Table Text Block] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] After Ten Years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Noninterest Expense Noninterest Expense [Member] Noninterest Expense Granted (or acquired) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Grants In Period, Weighted Average Remaining Contractual Terms Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option, Grants In Period, Weighted Average Remaining Contractual Terms Entity File Number Entity File Number Securities unrealized loss Securities Unrealized Loss Securities Unrealized Loss Schedule of Assumptions Used to Determine Net Periodic Pension Cost Defined Benefit Plan, Assumptions [Table Text Block] Debt securities, available-for-sale, accrued interest, after allowance for credit loss, statement of financial position [extensible enumeration] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Tax-exempt securities Interest Income, Securities, Operating, Tax Exempt Individually evaluated loans, measurement input Financing Receivable, Individually Evaluated For Impairment, Measurement Input Financing Receivable, Individually Evaluated For Impairment, Measurement Input Loans held-for-sale Financing Receivable, Held-for-Sale [Policy Text Block] Consolidated Entities [Domain] Consolidated Entities [Domain] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Federal Current Federal Tax Expense (Benefit) Name Forgone Recovery, Individual Name Operating lease weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Financial Asset Acquired with Credit Deterioration Financial Asset Acquired with Credit Deterioration [Member] Debt securities and Equity securities Investment, Policy [Policy Text Block] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] Schedule of Estimated Future Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Cash reserve deposit required and made Cash Reserve Deposit Required and Made Residential mortgage backed — non-agency Residential mortgage backed - non-agency Residential Mortgage-Backed Securities - Non-Agency [Member] Residential Mortgage-Backed Securities - Non-Agency Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Community Bankers' Bank Community Bankers' Bank [Member] Community Bankers' Bank 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] To Be Well Capitalized Under Prompt Corrective Action Regulations Ratio Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum Actual Amount Banking Regulation, Tier 1 Leverage Capital, Actual PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Commercial mortgage backed — non-agency Commercial mortgage backed - non-agency Commercial Mortgage-Backed Securities - Non-Agency [Member] Commercial Mortgage-Backed Securities - Non-Agency Total provision for (recapture of) credit losses Provision for (recapture of) credit losses Credit Loss Expense (Reversal) Credit Loss Expense (Reversal) Adjustment to Compensation: Adjustment to Compensation [Axis] Mortgage servicing rights Deferred Tax Liabilities, Mortgage Servicing Rights Provision for credit losses Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Financing Receivable, Allowance for Credit Loss Company-owned life insurance Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Company Owned Life Insurance Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Company Owned Life Insurance Financial liabilities Financial liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Reclassification adjustment for losses (gains) included in net income, net of tax of $502 for 2024, $(367) for 2023, and $(35) for 2022 Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Lease liability Deferred Tax Assets, Leasing Arrangements Deferred Tax Assets, Leasing Arrangements One to Five Years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Total interest expense Interest expense Interest Expense, Operating Par value of acquired loans at acquisition Financing Receivable, Purchased with Credit Deterioration, Amount at Par Value Changes in pension plan benefits, net of tax of $(349) for 2024, ($342) for 2023, and $263 for 2022 Total recognized in accumulated other comprehensive (income) loss Net change in pension plan benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Fair value of liabilities Fair Value Hedge Liabilities Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Weighted average number of shares (in shares) Weighted Average Number of Shares Outstanding, Basic Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Unrealized gain (loss) arising during period, tax expense (benefit) OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax More Than Twelve Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Tier 1 (Core) Capital to average assets (leverage ratio) Banking Regulation, Tier 1 Leverage Capital [Abstract] Premises and equipment, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Name Awards Close in Time to MNPI Disclosures, Individual Name Business combination, acquired receivable, gross contractual amount Business Combination, Acquired Receivables, Gross Contractual Amount Subordinated debentures and trust preferred securities Business Combination, Provisional Information, Initial Accounting Incomplete, Subordinated Debentures And Trust Preferred Securities Business Combination, Provisional Information, Initial Accounting Incomplete, Subordinated Debentures And Trust Preferred Securities Less Than Twelve Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Brokered time deposits Interest-Bearing Domestic Deposit, Brokered Entity Filer Category Entity Filer Category Credit losses on unfunded commitments Credit loss expense (recapture) - off-balance sheet credit exposures Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Schedule of Lessor, Operating Lease, Payment to be Received, Maturity Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Cash payments for: Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract] Purchase price consideration for common stock issued Business Acquisition, Equity Interest Issued or Issuable, Value Assigned 2023 Stock Incentive Plan 2023 Stock Incentive Plan [Member] 2023 Stock Incentive Plan Acquired goodwill Preliminary goodwill Goodwill, Acquired During Period Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Statistical Measurement [Domain] Statistical Measurement [Domain] Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Schedule of Lease, Cost Lease, Cost [Table Text Block] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Schedule of Financing Receivable, Past Due Financing Receivable, Past Due [Table Text Block] Investor servicing income Investor Servicing Income [Member] Investor Servicing Income To Be Well Capitalized Under Prompt Corrective Action Regulations Amount Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Well Capitalized, Minimum Internal Credit 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