Pension, Postretirement, and Other Benefit Plans (Schedule of Funded Status of Plans and Composition of Accrued Pension Cost) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Noncurrent asset	$ 10,400	$ 17,000
Pension plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	91,611	103,137	$ 112,688
Benefit obligation	134,319	137,111	158,323
Funded status	(42,708)	(33,974)
Noncurrent asset	10,406	16,982
Current liability	(5,332)	(4,915)
Noncurrent liability	(47,782)	(46,041)
Net amount recognized	(42,708)	(33,974)
Net actuarial loss	28,845	19,529
Prior service cost/(credit)	(93)	(96)
Net amount recognized	28,752	19,433
Other postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0	0
Benefit obligation	26,879	26,715	$ 28,684
Funded status	(26,879)	(26,715)
Noncurrent asset	0	0
Current liability	(2,727)	(2,772)
Noncurrent liability	(24,152)	(23,943)
Net amount recognized	(26,879)	(26,715)
Net actuarial loss	2,597	1,345
Prior service cost/(credit)	(237)	(360)
Net amount recognized	$ 2,360	$ 985