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Borrowings - Summary of FHLB and Repurchase Agreements (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
FHLB advances |  |
Short-term Debt [Line Items] |  |
Average balance during year | $ 434,422 | $ 562,467
Maximum outstanding at any month end | $ 510,000 | $ 695,000
Weighted average interest rate at end of year | 2.10% | 2.05%
Weighted average interest rate during year | 2.08% | 2.01%
Repurchase Agreements |  |
Short-term Debt [Line Items] |  |
Average balance during year | $ 60,068 | $ 75,000
Maximum outstanding at any month end | $ 75,000 | $ 75,000
Weighted average interest rate at end of year | 2.36% | 2.30%
Weighted average interest rate during year | 2.36% | 2.35%

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