Employee Benefit Plans (Reconciliation of Changes in Fair Value of Plan Assets, Plan Benefit Obligations and Funded Status) (Details) - Employee Pension Plans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in Fair Value of Plan Assets
Balance at beginning of year	$ 71,940	$ 73,357
Actual return on plan assets	6,844	899
Company contribution	1,235	4,408
Benefit payments	(6,644)	(6,724)
Balance at end of year	73,375	71,940	$ 73,357
Change in Benefit Obligations
Balance at beginning of year	107,824	102,607
Interest cost	2,349	3,032	3,801
Service cost	935	925	900
Assumption change (gain) loss	(3,921)	7,902
Actuarial loss	983	81
Benefit payments	(6,644)	(6,723)
Balance at end of year	$ 101,526	$ 107,824	$ 102,607