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Recurring and Nonrecurring basis (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Trading |  | $ 4,987 | $ 3,888
Equity Securities, FV-NI |  | 22,510 | 21,119
Debt Securities, Available-for-Sale |  | 1,334,256 | 1,399,154
US Government Agencies Debt Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 207,138 | 202,300
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 277,047 | 313,688
Pooled Trust Preferred Securities Issued By Banks And Insurers [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 1,018 | 1,034
Small Business Administration Pooled Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 46,572 | 51,757
US Treasury Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 769,102 | 791,341
Fair Value, Recurring [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Trading |  | 4,987 | 3,888
Assets and liabilities measured at fair value on a recurring basis |  |  |
Assets and Liabilities Fair Value Disclosure Recurring |  | 1,338,201 | 1,375,011
Fair Value, Recurring [Member] | Equity Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Equity Securities, FV-NI |  | 22,510 | 21,119
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 207,138 | 202,300
Fair Value, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 277,047 | 313,688
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 33,189 | 38,843
Fair Value, Recurring [Member] | Municipal Bonds [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 190 | 191
Fair Value, Recurring [Member] | Pooled Trust Preferred Securities Issued By Banks And Insurers [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 1,018 | 1,034
Fair Value, Recurring [Member] | Small Business Administration Pooled Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 46,572 | 51,757
Fair Value, Recurring [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Loans Held-for-sale, Fair Value Disclosure |  | 6,368 | 2,803
Fair Value, Recurring [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Total |  | 103,948 | 127,958
Fair Value, Recurring [Member] | Derivative Financial Instruments, Liabilities [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 133,868 | 179,911
Fair Value, Recurring [Member] | US Treasury Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 769,102 | 791,341
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Trading |  | 4,987 | 3,888
Assets and liabilities measured at fair value on a recurring basis |  |  |
Assets and Liabilities Fair Value Disclosure Recurring |  | 27,497 | 25,007
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Equity Securities, FV-NI |  | 22,510 | 21,119
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | US Government Agencies Debt Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateralized Mortgage Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Municipal Bonds [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Pooled Trust Preferred Securities Issued By Banks And Insurers [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Small Business Administration Pooled Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | US Treasury Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Assets and Liabilities Fair Value Disclosure Recurring |  | 1,310,704 | 1,350,004
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Equity Securities, FV-NI |  | 0 | 0
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | US Government Agencies Debt Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 207,138 | 202,300
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 277,047 | 313,688
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateralized Mortgage Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 33,189 | 38,843
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Municipal Bonds [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 190 | 191
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Pooled Trust Preferred Securities Issued By Banks And Insurers [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 1,018 | 1,034
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Small Business Administration Pooled Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 46,572 | 51,757
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Loans Held-for-sale, Fair Value Disclosure |  | 6,368 | 2,803
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Total |  | 103,948 | 127,958
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Derivative Financial Instruments, Liabilities [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 133,868 | 179,911
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | US Treasury Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 769,102 | 791,341
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Equity Securities, FV-NI |  | 0 | 0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Government Agencies Debt Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Collateralized Mortgage Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Municipal Bonds [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Pooled Trust Preferred Securities Issued By Banks And Insurers [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Small Business Administration Pooled Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Treasury Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt Securities, Available-for-Sale |  | 0 | 0
Fair Value, Nonrecurring [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Assets And Liabilities Fair Value Disclosure Nonrecurring |  | 28,881 | 16,092
Fair Value, Nonrecurring [Member] | Collateral Dependent Loans [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Assets, Fair Value Disclosure |  | 28,881 | 16,092
Fair Value, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Assets And Liabilities Fair Value Disclosure Nonrecurring |  | 28,881 | 16,092
Fair Value, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Assets, Fair Value Disclosure | [1] | $ 28,881 | $ 16,092
[1] | The carrying value of individually assessed collateral dependent loans is based on the lower of amortized cost or fair value of the underlying collateral less costs to sell. The fair value of the underlying collateral is generally determined through independent appraisals, which generally include various Level 3 inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

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