Accumulated Other Comprehensive Loss - Activity in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 3,708,207	$ 2,020,676	$ 3,792,821	$ 1,833,018
Other comprehensive income, net of tax	9,031	7,255	(249)	(21,917)
Ending balance	3,866,175	2,131,006	3,866,175	2,131,006
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(13,659)	(43,298)	(4,379)	(14,126)
Ending balance	(4,628)	(36,043)	(4,628)	(36,043)
Pension and other postretirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(2,944)	(4,344)	(3,325)	(4,758)
Other comprehensive income, net of tax	396	412	777	826
Ending balance	(2,548)	(3,932)	(2,548)	(3,932)
Pension and other postretirement benefits, gain (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	381	405	762	811
Other comprehensive (loss) income, before reclassifications, tax	0	0	0	0
Other comprehensive (loss) income, before reclassifications	381	405	762	811
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	15	7	15	15
Less: Tax expense	0	0	0	0
Net amount reclassified from AOCI to net (loss) income	15	7	15	15
Foreign currency translation adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(7,448)	(32,257)	3,234	(6,710)
Other comprehensive income, before tax	7,026	10,337	(3,656)	(15,210)
Less: Tax expense	0	0	0	0
Other comprehensive income, net of tax	7,026	10,337	(3,656)	(15,210)
Ending balance	(422)	(21,920)	(422)	(21,920)
Hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,267)	(6,697)	(4,288)	(2,658)
Other comprehensive (loss) income, before reclassifications, tax	0	0	0	0
Other comprehensive (loss) income, before reclassifications	2,350	(16,826)	5,022	(4,380)
Ending balance	(1,658)	(10,191)	(1,658)	(10,191)
Hedge derivative | Interest expense
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net amount reclassified from AOCI to net (loss) income	46	1,023	139	732
Hedge derivative | Loss on debt extinguishment, modifications and termination of derivative instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net amount reclassified from AOCI to net (loss) income	801	0	1,428	0
Hedge derivative | Foreign currency exchange gain, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net amount reclassified from AOCI to net (loss) income	(1,588)	12,309	(3,959)	(3,885)
Cash flow hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	2,350	(16,826)	5,022	(9,630)
Net investment hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	$ 0	$ 0	$ 0	$ 5,250