Employee Benefit Plans - Schedule of Reconciliation of Prepaid Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Plan
Prepaid Pension Cost [Roll Forward]
Prepaid pension cost (accrued liability) as of beginning of fiscal year	$ 5,188	$ 5,954
Net periodic pension cost for fiscal year	(499)	(766)	$ (897)
Actual employer contributions	0	0	0
Benefits paid	2,033	1,853	1,736
Prepaid pension cost (accrued liability) as of end of fiscal year	4,689	5,188	5,954
SERP
Prepaid Pension Cost [Roll Forward]
Prepaid pension cost (accrued liability) as of beginning of fiscal year	(5,936)	(6,266)
Net periodic pension cost for fiscal year	(134)	(1)	(56)
Benefits paid	322	331	398
Prepaid pension cost (accrued liability) as of end of fiscal year	$ (5,748)	$ (5,936)	$ (6,266)