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Borrowings (Tables) | 12 Months Ended
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Dec. 31, 2021
Debt Disclosure [Abstract] |
Summary of Borrowings | Borrowings consisted of FHLB advances, securities sold under agreements to repurchase (repurchase agreements), and floating rate advances and are summarized as follows (in thousands):
| December 31,
| 2021 |  | 2020
Repurchase agreements | $ | 50,000 |  |  | $ | 75,000 |
Other borrowings: |  |  |
FHLB advances | 365,000 |  |  | 510,000 |
Floating rate advances | 6,755 |  |  | 6,789 |
| $ | 421,755 |  |  | $ | 591,789 |
Contractual Maturities Repurchase Agreements And FHLB Advances | At December 31, 2021 and 2020, FHLB advances and repurchase agreements had contractual maturities as follows (in thousands):
| December 31, 2021
| FHLB |  | Repurchase
| Advances |  | Agreements
2022 | $ | 95,000 |  |  | $ | 25,000 |
2023 | 87,500 |  |  | — |
2024 | 25,000 |  |  | 25,000 |
2025 | 112,500 |  |  | — |
Thereafter | 45,000 |  |  | — |
| $ | 365,000 |  |  | $ | 50,000 |
| December 31, 2020
| FHLB |  | Repurchase
| Advances |  | Agreements
2021 | $ | 145,000 |  |  | $ | 25,000 |
2022 | 95,000 |  |  | 25,000 |
2023 | 87,500 |  |  | — |
2024 | 25,000 |  |  | 25,000 |
2025 | 112,500 |  |  | — |
Thereafter | 45,000 |  |  | — |
| $ | 510,000 |  |  | $ | 75,000 |
Further information regarding FHLB advances and repurchase agreements is summarized as follows (in thousands):
| December 31,
| 2021 |  | 2020 |  | 2021 |  | 2020
| FHLB Advances |  | Repurchase Agreements
Average balance during year | $ | 434,422 |  |  | $ | 562,467 |  |  | $ | 60,068 |  |  | $ | 75,000 |
Maximum outstanding at any month end | $ | 510,000 |  |  | $ | 695,000 |  |  | $ | 75,000 |  |  | $ | 75,000 |
Weighted average interest rate at end of year | 2.10 | % |  | 2.05 | % |  | 2.36 | % |  | 2.30 | %
Weighted average interest rate during year | 2.08 | % |  | 2.01 | % |  | 2.36 | % |  | 2.35 | %
Summary of Interest Expense on Borrowings | Interest expense on borrowings is summarized as follows (in thousands):
| December 31,
| 2021 |  | 2020 |  | 2019
Repurchase agreements | $ | 1,416 |  |  | $ | 1,762 |  |  | $ | 1,065 |
FHLB advances | 9,026 |  |  | 11,323 |  |  | 10,795 |
Floating rate advances | — |  |  | 22 |  |  | 170 |
| $ | 10,442 |  |  | $ | 13,107 |  |  | $ | 12,030 |

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