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Investments, Debt and Equity Securities [Abstract] ACST III ACST III [Member] Arrow Capital Statutory Trust III [Member] Unrealized Gain (Loss) on Investments Gain (Loss) on Securities [Table Text Block] Fourth Year Short-Term Debt, Maturity, Year Four Short-Term Debt, Maturity, Year Four Common stock price (in dollars per share) Business Combination, Price Per Share Loan commitments, fixed fee (in percent) Financing Receivable, Loan Commitments, Fixed Fees, Percent Financing Receivable, Loan Commitments, Fixed Fees, Percent Fair value adjustment included in other liabilities Derivative Liability Notional Amount Fair Value Disclosure, off-Balance-Sheet Risks, Face Amount, Liability Non-PEO NEO Non-PEO NEO [Member] 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 Corporate and Other Debt Securities Debt Security, Corporate, US [Member] Provision for Income Taxes Provision for Income Taxes Income Tax Expense (Benefit) Total Non-Interest Expense Noninterest Expense Risks and Uncertainties [Abstract] Award Timing Method Award Timing Method [Text Block] Net (Decrease) Increase in Cash and Cash Equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Charge-offs Total Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Other Intangible Assets, Net Other Intangible Assets, Net Amortization of Net Gain Defined Benefit Plan, Amortization of Gain (Loss) NET INCOME Net Income Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Statement [Table] Statement [Table] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Restatement Determination Date: Restatement Determination Date [Axis] Stock options exercised, net Proceeds from Stock Options Exercised Changes in Accumulated Other Comprehensive Income By Component Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Interest on Deposits at Banks Interest Income, Domestic Deposits Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Vested at Period-End (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Maturities of Debt Securities, at Amortized Cost: Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Share-Based Payment Arrangement Share-Based Payment Arrangement [Member] 2023 Interest Rate Swaps 2023 Interest Rate Swaps [Member] 2023 Interest Rate Swaps Other Real Estate owned and Repossessed Assets, Net, Gains (Losses) Recognized in Earnings Gain (Loss) Other Real Estate And Repossessed Assets, Net Gain (Loss) Other Real Estate And Repossessed Assets, Net Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]