Securities - Contractual Maturities of Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Amortized Cost
Due in one year or less	$ 25,302
Due after one year through five years	92,010
Due after five years through ten years	19,773
Due after ten years	0
Available-for-Sale Debt Securities With Fixed Maturities	137,085
Amortized Cost	1,058,154	$ 1,051,313
Fair Value
Due in one year or less	25,090
Due after one year through five years	87,731
Due after five years through ten years	19,305
Due after ten years	0
Available-for-Sale Debt Securities With Fixed Maturities	132,126
Total Available-for-Sale Debt Securities, Fair Value	986,415	969,308
Collateralized mortgage obligations of U.S. government corporations and agencies
Amortized Cost
Available-for-Sale Debt Securities With Fixed Maturities	643,690
Amortized Cost	643,690	507,942
Fair Value
Available-for-Sale Debt Securities With Fixed Maturities	596,284
Total Available-for-Sale Debt Securities, Fair Value	596,284	460,939
Residential mortgage-backed securities of U.S. government corporations and agencies
Amortized Cost
Available-for-Sale Debt Securities With Fixed Maturities	40,109
Amortized Cost	40,109	44,707
Fair Value
Available-for-Sale Debt Securities With Fixed Maturities	33,207
Total Available-for-Sale Debt Securities, Fair Value	33,207	38,177
Commercial mortgage-backed securities of U.S. government corporations and agencies
Amortized Cost
Available-for-Sale Debt Securities With Fixed Maturities	237,270
Amortized Cost	237,270	290,775
Fair Value
Available-for-Sale Debt Securities With Fixed Maturities	224,798
Total Available-for-Sale Debt Securities, Fair Value	$ 224,798	$ 273,425