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v3.22.4

Borrowings and Borrowing Capacity - Additional Information (Details) $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2016 USD ($) | Dec. 31, 2022 USD ($) bank quarter | Dec. 31, 2021 USD ($)
Debt Instrument [Line Items] |  |  |  |
Number of banks containing unsecured federal funds lines of credit | bank |  |  | 7 |
Unsecured federal funds line of credit |  |  | $ 227,500 |
Loans pledged as collateral |  |  | 4,077,484 | $ 4,825,359
Subordinated notes |  |  | 107,800 | 106,957
Subordinated notes issued |  |  | 109,500 |
Write off of deferred debt issuance cost | $ 755 |  |  |
Junior subordinated debentures |  |  | $ 41,158 | 40,602
Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum interest deferment period on junior subordinated debentures | quarter |  |  | 20 |
Paycheck Protection Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt |  |  | $ 0 | $ 27,144
Stated rate |  |  |  | 0.35%
Federal Reserve Bank Discount Window Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Unused borrowing capacity, amount |  |  | 510,724 |
Federal Reserve Bank Discount Window Facility | Asset Pledged as Collateral |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Loans pledged as collateral |  |  | $ 679,897 |
Fixed-to-Floating Rate Subordinated Notes due 2026 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Subordinated notes issued |  | $ 50,000 |  |
Current Interest Rate |  | 6.50% |  |
Fixed-to-Floating Rate Subordinated Notes due 2026 | London Interbank Offered Rate (LIBOR) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Description of floating rate basis |  | three-month LIBOR |  |
Interest rate |  | 5.345% |  |

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