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Securities - Schedule of Available-for-Sale Securities Amortized Cost and Estimated Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Amortized Cost    
Due in one year or less $ 69,215 $ 100,000
Due after one year through five years 244,576 227,502
Due after five years through ten years 188,503 212,789
Due after ten years 1,263 22,326
Total 503,557 562,617
Mortgage-backed securities 877,226 804,506
Amortized Cost 1,380,783 1,367,123
Fair Value    
Due in one year or less 69,378 99,153
Due after one year through five years 236,589 215,976
Due after five years through ten years 182,170 199,457
Due after ten years 1,006 17,332
Total 489,143 531,918
Mortgage-backed securities 801,910 699,614
Fair Value $ 1,291,053 $ 1,231,532