Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 13,559
Other comprehensive income (loss)	(33,811)	$ 40,205	$ (19,855)
Ending Balance	(20,252)	13,559
Pension and Other Post-Retirement Actuarial Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(77,075)	(68,020)	(58,291)
Other comprehensive income before reclassifications	12,592	(22,055)	(21,473)
Tax effect	(2,509)	5,288	5,219
Other comprehensive income before reclassifications, net of tax	10,083	(16,767)	(16,254)
Amounts reclassified out of AOCI	10,677	10,168	8,694
Tax effect	(2,593)	(2,456)	(2,169)
Amounts reclassified out of AOCI, net of tax	8,084	7,712	6,525
Other comprehensive income (loss)	18,167	(9,055)	(9,729)
Ending Balance	(58,908)	(77,075)	(68,020)
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	90,634	41,374	51,500
Other comprehensive income before reclassifications	(51,978)	49,260	(10,126)
Tax effect	0	0	0
Other comprehensive income before reclassifications, net of tax	(51,978)	49,260	(10,126)
Amounts reclassified out of AOCI	0	0	0
Tax effect	0	0	0
Amounts reclassified out of AOCI, net of tax	0	0	0
Other comprehensive income (loss)	(51,978)	49,260	(10,126)
Ending Balance	38,656	90,634	41,374
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	13,559	(26,646)	(6,791)
Other comprehensive income before reclassifications	(39,386)	27,205	(31,599)
Tax effect	(2,509)	5,288	5,219
Other comprehensive income before reclassifications, net of tax	(41,895)	32,493	(26,380)
Amounts reclassified out of AOCI	10,677	10,168	8,694
Tax effect	(2,593)	(2,456)	(2,169)
Amounts reclassified out of AOCI, net of tax	8,084	7,712	6,525
Other comprehensive income (loss)	(33,811)	40,205	(19,855)
Ending Balance	$ (20,252)	$ 13,559	$ (26,646)