Accumulated Other Comprehensive (Loss) Income - Amount of Income Tax Benefit (Expense) Allocated to Component of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accumulated Other Comprehensive (Loss) Income [Line Items]
Total other comprehensive income (loss), net of tax	$ 32,731	$ (86,688)	$ (2,585)	$ (85,437)
Foreign Currency Translation
Equity [Abstract]
Other comprehensive income (loss), before tax	37,494	(100,069)	18,352	(100,379)
Accumulated Other Comprehensive (Loss) Income [Line Items]
Other comprehensive income (loss), before tax	37,494	(100,069)	18,352	(100,379)
Income tax expense	(5)	0	(2)	(1)
Total other comprehensive income (loss), net of tax	37,489	(100,069)	18,350	(100,380)
Pension and Postretirement Benefits
Equity [Abstract]
Other comprehensive income (loss), before tax	10	(3)	28	10
Accumulated Other Comprehensive (Loss) Income [Line Items]
Other comprehensive income (loss), before tax	10	(3)	28	10
Income tax expense	0	(2)	(1)	(2)
Total other comprehensive income (loss), net of tax	10	(5)	27	8
Net Investment Hedge
Equity [Abstract]
Other comprehensive income (loss), before tax	(16,029)	16,584	(20,755)	16,932
Accumulated Other Comprehensive (Loss) Income [Line Items]
Other comprehensive income (loss), before tax	(16,029)	16,584	(20,755)	16,932
Income tax expense	3,621	(3,839)	4,672	(3,920)
Total other comprehensive income (loss), net of tax	(12,408)	12,745	(16,083)	13,012
Cash Flow Hedge
Equity [Abstract]
Other comprehensive income (loss), before tax	6,993	0	(6,822)	0
Accumulated Other Comprehensive (Loss) Income [Line Items]
Other comprehensive income (loss), before tax	6,993	0	(6,822)	0
Income tax expense	0	0	0	0
Total other comprehensive income (loss), net of tax	6,993	0	(6,822)	0
Interest Rate Swap
Equity [Abstract]
Other comprehensive income (loss), before tax	834	834	2,502	2,502
Accumulated Other Comprehensive (Loss) Income [Line Items]
Other comprehensive income (loss), before tax	834	834	2,502	2,502
Income tax expense	(187)	(193)	(559)	(579)
Total other comprehensive income (loss), net of tax	$ 647	$ 641	$ 1,943	$ 1,923