Investment Securities, Contractual Maturity (Details) $ in Thousands	Mar. 31, 2025 USD ($)
Amortized Cost [Abstract]
One year or less	$ 394
After one year through five years	17,430
After five years through ten years	2,502
After ten years	494,726
Total	515,052
Fair Value [Abstract]
One year or less	393
After one year through five years	17,499
After five years through ten years	2,480
After ten years	475,061
Total	495,433
Amortized Cost [Abstract]
One year or less	1,538
After one year through five years	24,008
After five years through ten years	18,977
After ten years	715,248
Total	759,771
Fair Value [Abstract]
One year or less	1,523
After one year through five years	23,500
After five years through ten years	17,669
After ten years	572,171
Total	$ 614,863