Pension and Other Postretirement Benefits - Level 3 Asset Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	$ 302,270	$ 315,649
Currency translation adjustment	(9,694)	13,876
Fair Value of Plan Assets at End of Year	294,566	302,270
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	133,333	111,674
Purchases	1,310	4,909
Settlements	(1,812)	(2,027)
Unrealized gains (losses)	(6,387)	8,730
Currency translation adjustment	(8,391)	10,047
Fair Value of Plan Assets at End of Year	118,053	133,333
Insurance Contract [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	112,920	92,657
Purchases	1,722	3,902
Settlements	(1,812)	(2,027)
Unrealized gains (losses)	(5,031)	8,917
Currency translation adjustment	(8,272)	9,471
Fair Value of Plan Assets at End of Year	99,527	112,920
Real Estate Fund [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	9,775	9,581
Purchases		18
Purchases	(78)
Settlements	0	0
Unrealized gains (losses)	1,926	(16)
Currency translation adjustment	(76)	192
Fair Value of Plan Assets at End of Year	11,547	9,775
Other-alternative investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	10,638	9,436
Purchases		989
Purchases	(334)
Settlements	0	0
Unrealized gains (losses)	(3,282)	(171)
Currency translation adjustment	(43)	384
Fair Value of Plan Assets at End of Year	$ 6,979	$ 10,638