Accumulated Other Comprehensive Income (Loss) (Components of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (629,715)	$ (594,004)	$ (559,026)	$ (603,648)
Other comprehensive income (loss) before reclassifications (3)	(81,321)	(13,261)	(147,862)	(9,348)
Amounts reclassified from AOCL	(1,771)	1,308	(5,920)	7,039
Other comprehensive income (loss)	(83,092)	(11,953)	(153,782)	(2,309)
Ending balance	(712,807)	(605,957)	(712,807)	(605,957)
Foreign currency translation, taxes	(3,183)	(1,274)	(23,788)	(7,021)
As Reported
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Ending balance	(712,808)		(712,808)
Foreign currency translation items
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(536,929)	(453,328)	(456,025)	(456,437)
Other comprehensive income (loss) before reclassifications (3)	(89,282)	(15,561)	(170,187)	(12,452)
Amounts reclassified from AOCL	0	0	0	0
Other comprehensive income (loss)	(89,282)	(15,561)	(170,187)	(12,452)
Ending balance	(626,211)	(468,889)	(626,211)	(468,889)
Foreign currency translation items | As Reported
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Ending balance	(626,212)		(626,212)
Pension and other post-retirement effects
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(91,508)	(140,405)	(101,665)	(146,723)
Other comprehensive income (loss) before reclassifications (3)	7,961	2,300	22,325	3,104
Amounts reclassified from AOCL	(1,800)	2,655	(6,007)	8,169
Other comprehensive income (loss)	6,161	4,955	16,318	11,273
Ending balance	(85,347)	(135,450)	(85,347)	(135,450)
Pension and other post-retirement effects | As Reported
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Ending balance	(85,347)		(85,347)
Cash flow hedging activity
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,278)	(271)	(1,336)	(488)
Other comprehensive income (loss) before reclassifications (3)	0	0	0	0
Amounts reclassified from AOCL	29	(1,347)	87	(1,130)
Other comprehensive income (loss)	29	(1,347)	87	(1,130)
Ending balance	(1,249)	(1,618)	(1,249)	(1,618)
Cash flow hedging activity | As Reported
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Ending balance	(1,249)		(1,249)
Non- controlling Interests
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income (loss)	(91)	(3)	1,248	159
Accumulated other comprehensive income (loss), foreign currency translation adjustment, net of tax	5,800	6,100	5,800	6,100	$ 5,900	$ 4,600	$ 6,100	$ 5,900
Non- controlling Interests | Currency Swap
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Foreign currency translation, taxes	$ 21,300	$ 12,500	$ 56,300	$ 22,300