Accumulated Other Comprehensive Loss - Activity in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 2,020,676	$ 680,477	$ 1,833,018	$ 706,755
Other comprehensive income (loss)	7,255	(3,493)	(21,917)	(4,462)
Ending balance	2,131,006	1,855,657	2,131,006	1,855,657
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(43,298)	(13,484)	(14,126)	(12,515)
Ending balance	(36,043)	(16,977)	(36,043)	(16,977)
Pension and other postretirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4,344)	(7,503)	(4,758)	(8,027)
Other comprehensive income (loss)	412	527	826	1,051
Ending balance	(3,932)	(6,976)	(3,932)	(6,976)
Pension and other postretirement benefits, gain (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	405	518	811	1,034
Other comprehensive (loss) income, before reclassifications, tax	0	0	0	0
Other comprehensive (loss) income, before reclassifications	405	518	811	1,034
Pension and other postretirement benefits, prior service cost
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Amount reclassified from AOCI to net income/loss	7	9	15	17
Less: Tax expense	0	0	0	0
Net amount reclassified from AOCI to net income	7	9	15	17
Foreign currency translation adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(32,257)	(2,101)	(6,710)	(3,322)
Other comprehensive (loss) income, before reclassifications, before tax	10,337	(2,257)	(15,210)	(1,036)
Less: Tax expense	0	0	0	0
Other comprehensive income (loss)	10,337	(2,257)	(15,210)	(1,036)
Ending balance	(21,920)	(4,358)	(21,920)	(4,358)
Hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(6,697)	(3,880)	(2,658)	(1,166)
Other comprehensive (loss) income, before reclassifications, tax	0	0	0	0
Other comprehensive (loss) income, before reclassifications	(16,826)	(1)	(4,380)	(3,985)
Ending balance	(10,191)	(5,643)	(10,191)	(5,643)
Hedge derivative | Interest expense
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net amount reclassified from AOCI to net income	1,023	(2)	732	0
Hedge derivative | Foreign currency exchange gain, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net amount reclassified from AOCI to net income	12,309	(1,760)	(3,885)	(492)
Cash flow hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	(16,826)	(1)	(9,630)	(3,985)
Net investment hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	$ 0	$ 0	$ 5,250	$ 0