Employee Benefit Plans (Net Periodic Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost — benefits earned during the period	$ 415	$ 592	$ 533
Interest cost on projected benefit obligation	2,284	3,545	4,860
Expected return on assets	(3,458)	(3,869)	(4,874)
Prior service cost	0	0	0
Settlement loss	0	1,805	0
Amortization of net loss (gain)	1,835	1,836	2,001
Net expense	1,076	3,909	2,520
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost — benefits earned during the period	0	0	3
Interest cost on projected benefit obligation	224	286	347
Expected return on assets	0	0	0
Prior service cost	4	4	4
Settlement loss	0	0	0
Amortization of net loss (gain)	86	11	(40)
Net expense	$ 314	$ 301	$ 314