Accumulated Other Comprehensive Loss (Schedule of Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 1,118,895	$ 1,020,755
Other comprehensive income (loss) before reclassifications	(40,178)	(25,893)
Amounts reclassified to earnings	157	225
Net other comprehensive income (loss) for period	(40,021)	(25,668)
Balance, end of period	1,172,466	1,118,895
AOCI, Pension and other postretirement benefit plans, tax	1,926	2,125	$ 1,951
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(45,243)	(19,575)
Balance, end of period	(85,264)	(45,243)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(35,641)	(10,571)
Other comprehensive income (loss) before reclassifications	(39,934)	(25,070)
Amounts reclassified to earnings	0	0
Net other comprehensive income (loss) for period	(39,934)	(25,070)
Balance, end of period	(75,575)	(35,641)
Pension and Other Postretirement Benefits
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(9,602)	(9,004)
Other comprehensive income (loss) before reclassifications	(244)	(823)
Amounts reclassified to earnings	157	225
Net other comprehensive income (loss) for period	(87)	(598)
Balance, end of period	$ (9,689)	$ (9,602)