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Investment Securities - Summary of Held-to-maturity Securities by Maturities (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Schedule of Held-to-maturity Securities [Line Items] |  |
Debt securities, maturing within 1 year, amortized cost | $ 7,733 |
Debt securities, maturing 1 to 5 years, amortized cost | 20,313 |
Debt securities, maturing 5 to 10 years, amortized cost | 136,168 |
Debt securities, maturing over 10 years, amortized cost | 589,489 |
Amortized Cost | 753,703 | $ 775,037
Debt securities, maturing within 1 year, fair value | 7,643 |
Debt securities, maturing 1 to 5 years, fair value | 19,071 |
Debt securities, maturing 5 to 10 years, fair value | 127,262 |
Debt securities, maturing over 10 years, fair value | 529,339 |
Debt securities, held-to-maturity, fair value | $ 683,315 | 692,499
Held-to-maturity securities, maturing within 1 year, weighted average yield | 1.79% |
Held-to-maturity securities, maturing 1 to 5 years, weighted average yield | 1.90% |
Held-to-maturity securities, maturing 6 to 10 years, weighted average yield | 3.79% |
Held-to-maturity securities, maturing over 10 years, weighted average yield | 3.94% |
Held-to-maturity securities, total weighted average yield | 3.83% |
U.S. government sponsored agencies |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt securities, maturing within 1 year, amortized cost | $ 2,935 |
Debt securities, maturing 1 to 5 years, amortized cost | 3,498 |
Debt securities, maturing 5 to 10 years, amortized cost | 76,118 |
Debt securities, maturing over 10 years, amortized cost | 140,147 |
Amortized Cost | 222,698 | 233,302
Debt securities, maturing within 1 year, fair value | 2,853 |
Debt securities, maturing 1 to 5 years, fair value | 3,347 |
Debt securities, maturing 5 to 10 years, fair value | 75,883 |
Debt securities, maturing over 10 years, fair value | 133,294 |
Debt securities, held-to-maturity, fair value | 215,377 | 223,294
States and political subdivisions |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt securities, maturing within 1 year, amortized cost | 2,798 |
Debt securities, maturing 1 to 5 years, amortized cost | 5,830 |
Debt securities, maturing 5 to 10 years, amortized cost | 22,131 |
Debt securities, maturing over 10 years, amortized cost | 111,754 |
Amortized Cost | 142,513 | 142,691
Debt securities, maturing within 1 year, fair value | 2,790 |
Debt securities, maturing 1 to 5 years, fair value | 5,614 |
Debt securities, maturing 5 to 10 years, fair value | 18,188 |
Debt securities, maturing over 10 years, fair value | 85,879 |
Debt securities, held-to-maturity, fair value | 112,471 | 110,848
Residential mortgage-backed securities |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt securities, maturing within 1 year, amortized cost | 0 |
Debt securities, maturing 1 to 5 years, amortized cost | 147 |
Debt securities, maturing 5 to 10 years, amortized cost | 3,811 |
Debt securities, maturing over 10 years, amortized cost | 286,065 |
Amortized Cost | 290,023 | 300,290
Debt securities, maturing within 1 year, fair value | 0 |
Debt securities, maturing 1 to 5 years, fair value | 146 |
Debt securities, maturing 5 to 10 years, fair value | 3,411 |
Debt securities, maturing over 10 years, fair value | 268,239 |
Debt securities, held-to-maturity, fair value | 271,796 | 276,278
Commercial mortgage-backed securities |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt securities, maturing within 1 year, amortized cost | 2,000 |
Debt securities, maturing 1 to 5 years, amortized cost | 10,838 |
Debt securities, maturing 5 to 10 years, amortized cost | 34,108 |
Debt securities, maturing over 10 years, amortized cost | 51,523 |
Amortized Cost | 98,469 | 98,754
Debt securities, maturing within 1 year, fair value | 2,000 |
Debt securities, maturing 1 to 5 years, fair value | 9,964 |
Debt securities, maturing 5 to 10 years, fair value | 29,780 |
Debt securities, maturing over 10 years, fair value | 41,927 |
Debt securities, held-to-maturity, fair value | $ 83,671 | $ 82,079

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