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v3.22.0.1

Borrowings and Borrowing Capacity - Additional Information (Details) $ in Thousands |  | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2016 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) quarter bank | Dec. 31, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |
Total |  |  | $ 27,144 | $ 191,860
Number of banks containing unsecured federal funds lines of credit | bank |  |  | 7 |
Unsecured federal funds line of credit |  |  | $ 227,500 |
Subordinated notes |  |  | 106,957 | 87,509
Subordinated notes issued |  |  | 109,500 |
Write off of deferred debt issuance cost |  | $ 755 |  |
Junior subordinated debentures |  |  | $ 40,602 | 40,072
Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum interest deferment period on junior subordinated debentures | quarter |  |  | 20 |
Paycheck Protection Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total |  |  | $ 27,144 | $ 191,860
Stated rate |  |  | 0.35% | 0.35%
Federal Reserve Bank Discount Window Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Unused borrowing capacity, amount |  |  | $ 501,293 |
Loans pledged as collateral |  |  | $ 727,261 |
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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