Accumulated Other Comprehensive Income (Loss) (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	$ 8,980,254	$ 6,461,654	$ 8,686,815	$ 6,085,244
Other comprehensive income (loss) before reclassifications			16,579	(171)
Amounts reclassified from accumulated other comprehensive income (loss)			26,742	(11,977)
Total other comprehensive income (loss)	8,143	(27,504)	43,321	(12,148)
Ending balance	9,196,396	7,519,242	9,196,396	7,519,242
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(15,678)	(895)
Other comprehensive income (loss) before reclassifications			1,349	(13,200)
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Total other comprehensive income (loss)			1,349	(13,200)
Ending balance	(14,329)	(14,095)	(14,329)	(14,095)
On Available-For-Sale Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			334	503
Other comprehensive income (loss) before reclassifications			(273)	1,950
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Total other comprehensive income (loss)			(273)	1,950
Ending balance	61	2,453	61	2,453
On Foreign Currency Forward Contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(53,136)	(1,581)
Other comprehensive income (loss) before reclassifications			15,503	11,079
Amounts reclassified from accumulated other comprehensive income (loss)			26,742	(11,977)
Total other comprehensive income (loss)			42,245	(898)
Ending balance	(10,891)	(2,479)	(10,891)	(2,479)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(33,302)	13,383	(68,480)	(1,973)
Total other comprehensive income (loss)	8,143	(27,504)	43,321	(12,148)
Ending balance	$ (25,159)	$ (14,121)	$ (25,159)	$ (14,121)