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v3.25.1

Investment Securities - Additional Information (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) Position Security | Dec. 31, 2024 USD ($) Position Security
Schedule Of Available For Sale Securities [Line Items] |  |
Equity securities, at fair value | $ 4,471 | $ 4,439
Tax rate used to calculate tax-equivalent yields (in hundredths) | 21.00% |
Percentage investment book value exceeds stockholders' equity (in hundredths) | 10.00% |
Debt securities, available-for-sale, restricted | $ 529,800 | 632,900
Available-for-sale, 12 months or longer, Fair Value | 977,677 | 1,001,277
12 months or longer, unrealized losses | $ 184,984 | $ 193,568
U.S. Treasury Securities and Obligations of U.S. Government Corporations and Agencies |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Number of securities in unrealized loss positions | Security | 27 | 29
Available-for-sale, 12 months or longer, Fair Value | $ 183,392 | $ 189,327
12 months or longer, unrealized losses | $ 18,144 | $ 21,158
Held-to-maturity, securities in unrealized loss positions, qualitative disclosure, number of positions | Position | 0 | 0
Obligations of States and Political Subdivisions |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Number of securities in unrealized loss positions | Security | 251 | 247
Available-for-sale, 12 months or longer, Fair Value | $ 237,147 | $ 241,502
12 months or longer, unrealized losses | $ 60,804 | $ 55,193
Mortgage-backed Securities: GSE Residential |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Number of securities in unrealized loss positions | Security | 233 | 241
Available-for-sale, 12 months or longer, Fair Value | $ 503,901 | $ 511,746
12 months or longer, unrealized losses | $ 103,886 | $ 114,552
Other Securities |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Number of securities in unrealized loss positions | Security | 36 | 40
Available-for-sale, 12 months or longer, Fair Value | $ 53,237 | $ 58,702
12 months or longer, unrealized losses | $ 2,150 | $ 2,665

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