Equity and Accumulated Other Comprehensive Loss - AOCI Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Beginning Balance	$ (26,598)	$ (78,170)	$ (80,715)
Other comprehensive income (loss) before, before Tax	(32,661)	33,667	(798)
Amounts Reclassed from AOCI	(1,738)	23,939	2,868
Related Tax Amounts	(2,993)	(6,034)	475
Ending Balance	(63,990)	(26,598)	(78,170)
Currency Translation Adjustments [Member]
Beginning Balance	(2,875)	(44,568)	(49,322)
Other comprehensive income (loss) before, before Tax	(46,968)	41,693	4,754
Amounts Reclassed from AOCI	0	0	0
Related Tax Amounts	0	0	0
Ending Balance	(49,843)	(2,875)	(44,568)
Defined Benefit Pension Plans [Member]
Beginning Balance	(23,467)	(34,533)	(30,551)
Other comprehensive income (loss) before, before Tax	11,948	(6,617)	(8,088)
Amounts Reclassed from AOCI	1,459	24,141	3,169
Related Tax Amounts	(3,112)	(6,458)	937
Ending Balance	(13,172)	(23,467)	(34,533)
Unrealized Gain (Loss) Available for Sale Securities [Member]
Beginning Balance	3,342	1,251	(842)
Other comprehensive income (loss) before, before Tax	(531)	2,848	2,951
Amounts Reclassed from AOCI	(3,197)	(202)	(301)
Related Tax Amounts	783	(555)	(557)
Ending Balance	397	3,342	1,251
Derivative Instruments [Member]
Beginning Balance	(3,598)	(320)	0
Other comprehensive income (loss) before, before Tax	2,890	(4,257)	(415)
Amounts Reclassed from AOCI	0	0	0
Related Tax Amounts	(664)	979	95
Ending Balance	$ (1,372)	$ (3,598)	$ (320)