Securities - Amortized Cost and Estimated Fair Value of Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Amortized Cost
Due in one year or less	$ 100,000	$ 99,242
Due after one year through five years	227,502	307,093
Due after five years through ten years	212,789	245,617
Due after ten years	22,326	27,251
Total	562,617	679,203
Mortgage-backed securities	804,506	869,279
Amortized Cost	1,367,123	1,548,482
Fair Value
Due in one year or less	99,153	98,650
Due after one year through five years	215,976	296,279
Due after five years through ten years	199,457	233,569
Due after ten years	17,332	22,082
Total	531,918	650,580
Mortgage-backed securities	699,614	766,070
Fair Value	$ 1,231,532	$ 1,416,650