Accumulated Other Comprehensive Loss - Changes in Accumulated Loss by Component (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ 848,019	$ 395,162	$ 712,054	$ 462,154
Other comprehensive loss before reclassifications	(12,014)	4,657	(24,298)	(28,490)
Income tax	0	40	(611)	5,113
Other comprehensive loss before reclassifications, net of tax	(12,014)	4,697	(24,909)	(23,377)
Amounts reclassified from accumulated other comprehensive loss	500	3,242	26,222	23,536
Income tax	(105)	(918)	(7,441)	(2,016)
Amounts reclassified from accumulated other comprehensive loss, net of tax	395	2,324	18,781	21,520
Total other comprehensive income (loss), net of tax	(11,619)	7,021	(6,128)	(1,857)
Ending Balance	887,005	451,335	887,005	451,335
Retirement Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(18,290)	(13,926)	(18,447)	(14,691)
Other comprehensive loss before reclassifications	0	0	0	0
Income tax	0	0	0	0
Other comprehensive loss before reclassifications, net of tax	0	0	0	0
Amounts reclassified from accumulated other comprehensive loss	500	214	704	1,067
Income tax	(105)	(47)	(152)	(135)
Amounts reclassified from accumulated other comprehensive loss, net of tax	395	167	552	932
Total other comprehensive income (loss), net of tax	395	167	552	932
Ending Balance	(17,895)	(13,759)	(17,895)	(13,759)
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(14,728)	(23,471)	(18)	(25,301)
Other comprehensive loss before reclassifications	(12,014)	5,173	(26,724)	(8,577)
Income tax	0	0	0	0
Other comprehensive loss before reclassifications, net of tax	(12,014)	5,173	(26,724)	(8,577)
Amounts reclassified from accumulated other comprehensive loss	0	0	0	15,580
Income tax	0	0	0	0
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	0	0	15,580
Total other comprehensive income (loss), net of tax	(12,014)	5,173	(26,724)	7,003
Ending Balance	(26,742)	(18,298)	(26,742)	(18,298)
Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	0	(24,188)	(20,044)	(12,715)
Other comprehensive loss before reclassifications	0	(516)	2,426	(19,913)
Income tax	0	40	(611)	5,113
Other comprehensive loss before reclassifications, net of tax	0	(476)	1,815	(14,800)
Amounts reclassified from accumulated other comprehensive loss	0	3,028	25,518	6,889
Income tax	0	(871)	(7,289)	(1,881)
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	2,157	18,229	5,008
Total other comprehensive income (loss), net of tax	0	1,681	20,044	(9,792)
Ending Balance	0	(22,507)	0	(22,507)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(33,018)	(61,585)	(38,509)	(52,707)
Ending Balance	$ (44,637)	$ (54,564)	$ (44,637)	$ (54,564)