Accumulated Other Comprehensive Loss (AOCL) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' Equity beginning balance	$ 3,296,499	$ 3,355,411	$ 2,796,229	$ 3,711,616	$ 3,355,411	$ 3,711,616
Other comprehensive income before reclassifications					79,993	(652,415)
Amounts reclassified from AOCI					24,542	14,729
Tax effect					(6,554)	28,176
Total other comprehensive income (loss)	215,842	(117,861)	10,149	(619,659)	97,981	(609,510)
Stockholders' Equity ending balance	3,488,847	3,296,499	2,966,434	2,796,229	3,488,847	2,966,434
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' Equity beginning balance	(1,481,019)	(1,363,158)	(1,592,124)	(972,465)	(1,363,158)	(972,465)
Total other comprehensive income (loss)	215,842	(117,861)	10,149	(619,659)
Stockholders' Equity ending balance	(1,265,177)	(1,481,019)	(1,581,975)	(1,592,124)	(1,265,177)	(1,581,975)
Cumulative Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' Equity beginning balance		(1,296,962)		(929,713)	(1,296,962)	(929,713)
Other comprehensive income before reclassifications					77,648	(566,861)
Amounts reclassified from AOCI					0	0
Tax effect					0	0
Total other comprehensive income (loss)					77,648	(566,861)
Stockholders' Equity ending balance	(1,219,314)		(1,496,574)		(1,219,314)	(1,496,574)
Unrealized (Losses) Gains on Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' Equity beginning balance		$ (66,196)		$ (42,752)	(66,196)	(42,752)
Other comprehensive income before reclassifications					2,345	(85,554)
Amounts reclassified from AOCI					24,542	14,729
Tax effect					(6,554)	28,176
Total other comprehensive income (loss)					20,333	(42,649)
Stockholders' Equity ending balance	$ (45,863)		$ (85,401)		$ (45,863)	$ (85,401)