Other Comprehensive Income (Loss) - Tax Effects of Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other comprehensive income (loss), Before-Tax Amount:
Before-Tax Amount	$ (20,290)	$ 15,312	$ (22,387)	$ (84,713)
Other comprehensive income (loss), Tax Benefit (Expense):
Tax Benefit (Expense)	(2,511)	(487)	(767)	(1,021)
Other comprehensive income (loss), Net-of-Tax Amount:
Total OCI, net of tax	(22,801)	14,825	(23,154)	(85,734)
Foreign currency translation adjustments
Other comprehensive income (loss), Before-Tax Amount:
Before-Tax Amount	(18,712)	4,201	(17,281)	(75,828)
Other comprehensive income (loss), Tax Benefit (Expense):
Tax Benefit (Expense)	0	0	(11)	0
Other comprehensive income (loss), Net-of-Tax Amount:
Total OCI, net of tax	(18,712)	4,201	(17,292)	(75,828)
Ownership share of equity method investees’ OCI
Other comprehensive income (loss), Before-Tax Amount:
Before-Tax Amount	(936)	(1,287)	(4,222)	(18,707)
Other comprehensive income (loss), Tax Benefit (Expense):
Tax Benefit (Expense)	(2,037)	1,253	(890)	(153)
Other comprehensive income (loss), Net-of-Tax Amount:
Total OCI, net of tax	(2,973)	(34)	(5,112)	(18,860)
DB plan adjustments
Other comprehensive income (loss), Before-Tax Amount:
Before-Tax Amount	1,172	1,070	3,573	3,071
Other comprehensive income (loss), Tax Benefit (Expense):
Tax Benefit (Expense)	(9)	0	432	0
Other comprehensive income (loss), Net-of-Tax Amount:
Total OCI, net of tax	1,163	1,070	4,005	3,071
Unrealized gain (loss) on hedges
Other comprehensive income (loss), Before-Tax Amount:
Before-Tax Amount	(1,814)	11,328	(4,457)	6,751
Other comprehensive income (loss), Tax Benefit (Expense):
Tax Benefit (Expense)	(465)	(1,740)	(298)	(868)
Other comprehensive income (loss), Net-of-Tax Amount:
Total OCI, net of tax	(2,279)	9,588	(4,755)	5,883
Less: OCI attributable to NCI
Other comprehensive income (loss), Before-Tax Amount:
Before-Tax Amount	2,355	(495)	1,759	(2,291)
Other comprehensive income (loss), Tax Benefit (Expense):
Tax Benefit (Expense)	0	0	0	0
Other comprehensive income (loss), Net-of-Tax Amount:
Total OCI, net of tax	2,355	(495)	1,759	(2,291)
Accumulated Other Comprehensive Loss
Other comprehensive income (loss), Before-Tax Amount:
Before-Tax Amount	(22,645)	15,807	(24,146)	(82,422)
Other comprehensive income (loss), Tax Benefit (Expense):
Tax Benefit (Expense)	(2,511)	(487)	(767)	(1,021)
Other comprehensive income (loss), Net-of-Tax Amount:
Total OCI, net of tax	$ (25,156)	$ 15,320	$ (24,913)	$ (83,443)