Investment Securities, Contractual Maturity (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Amortized Cost [Abstract]
One year or less	$ 482
After one year through five years	21,182
After five years through ten years	5,300
After ten years	172,410
Total	199,374
Fair Value [Abstract]
One year or less	480
After one year through five years	20,842
After five years through ten years	5,185
After ten years	156,005
Total	182,512
Amortized Cost [Abstract]
One year or less	875
After one year through five years	18,020
After five years through ten years	23,121
After ten years	775,672
Fair value, excluding securities without single maturity date	817,688
Fair Value [Abstract]
One year or less	875
After one year through five years	17,792
After five years through ten years	22,023
After ten years	630,895
Fair value, excluding securities without single maturity date	$ 671,585