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Accumulated Other Comprehensive Loss - Activity in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 2,131,006	$ 1,855,657	$ 1,833,018	$ 706,755
Other comprehensive income (loss)	4,051	(6,806)	(17,866)	(11,268)
Ending balance	2,108,872	1,838,579	2,108,872	1,838,579
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(36,043)	(16,977)	(14,126)	(12,515)
Ending balance	(31,992)	(23,783)	(31,992)	(23,783)
Pension and other postretirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,932)	(6,976)	(4,758)	(8,027)
Other comprehensive income (loss)	414	525	1,240	1,576
Ending balance	(3,518)	(6,451)	(3,518)	(6,451)
Pension and other postretirement benefits, gain (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	407	517	1,218	1,551
Other comprehensive (loss) income, before reclassifications, tax	0	0	0	0
Other comprehensive (loss) income, before reclassifications	407	517	1,218	1,551
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	8	22	25
Less: Tax expense	0	0	0	0
Net amount reclassified from AOCI to net income	7	8	22	25
Foreign currency translation adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(21,920)	(4,358)	(6,710)	(3,322)
Other comprehensive (loss) income, before reclassifications, before tax	4,641	(5,089)	(10,569)	(6,125)
Amount reclassified from AOCI to net income/loss	0	(2,605)	0	(2,605)
Less: Tax expense	0	0	0	0
Other comprehensive income (loss)	4,641	(7,694)	(10,569)	(8,730)
Ending balance	(17,279)	(12,052)	(17,279)	(12,052)
Hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(10,191)	(5,643)	(2,658)	(1,166)
Other comprehensive (loss) income, before reclassifications, tax	0	0	0	0
Other comprehensive (loss) income, before reclassifications	(6,097)	6,087	(10,477)	2,103
Ending balance	(11,195)	(5,280)	(11,195)	(5,280)
Hedge derivative | Interest expense
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net amount reclassified from AOCI to net income	1,286	(212)	2,017	(212)
Hedge derivative | Foreign currency exchange gain, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net amount reclassified from AOCI to net income	3,807	(5,512)	(77)	(6,005)
Cash flow hedge derivative
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income, before reclassifications, before tax	(6,097)	6,087	(15,727)	2,103
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

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Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss) before reclassification adjustment from accumulated other comprehensive income (loss).

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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