Employee Benefit Plans - Reconciliation of Benefit Obligations and Change in Benefit Obligation (Details) - SERP - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in Benefit Obligation:
Projected benefit obligation at beginning of year	$ 36,089	$ 36,602
Service cost	1,191	1,392	$ 1,029
Interest cost	1,022	915	988
Actuarial (gain) loss	(6,522)	(2,213)
Benefits paid	(973)	(607)
Projected benefit obligation at end of year	30,807	36,089	$ 36,602
Changes in Plan Assets:
Fair value of plan assets at beginning of year	0
Fair value of plan assets at end of year	0	0
Funded Status:
Net amount recognized as accrued pension cost	$ (30,807)	$ (36,089)