Employee Benefit Plans (Schedule of Allocation of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Total fair value	$ 177,499	$ 199,248
Total
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	150,854	143,477
Total | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	41,129	23,882
Total | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	109,725	119,595
U.S. small-cap
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,287
U.S. small-cap | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,287
U.S. mid-cap
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,890
U.S. mid-cap | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,890
U.S. government securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	42,273	31,850
U.S. government securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	41,129	18,705
U.S. government securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	1,144	13,145
Non-U.S. government securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	333	1,612
Non-U.S. government securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	333	1,612
Corporate notes and bonds
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	81,906	98,357
Corporate notes and bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	81,906	98,357
State and local government securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	2,514	2,962
State and local government securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	2,514	2,962
Other investments
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	23,828	3,519
Other investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	23,828	3,519
Other fixed income
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	$ 26,645	$ 55,771