Benefit Plans - Defined Benefit Plans - Change in Projected Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Supplemental Retirement Plan
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$ 25,800	$ 33,179
Service cost	192	347
Actuarial loss (gain)	793	(7,065)
Interest cost	1,296	865
Benefits paid	(1,629)	(1,526)
Projected benefit obligation at end of period	26,452	25,800
Net actuarial loss	2,892	2,371
Split-Dollar Life Insurance Benefit Plan
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	7,060	9,244
Actuarial loss (gain)	(474)	(2,430)
Interest cost	365	246
Projected benefit obligation at end of period	6,951	7,060
Net actuarial loss	$ 2,108	$ 2,301