Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 9,196,396	$ 7,519,242	$ 8,686,815	$ 6,085,244
Other comprehensive income (loss) before reclassifications			49,181	(32,711)
Amounts reclassified from accumulated other comprehensive (loss) income			30,836	(6,298)
Total other comprehensive income (loss)	36,696	(26,861)	80,017	(39,009)
Ending balance	9,530,708	8,133,473	9,530,708	8,133,473
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(15,678)	(895)
Other comprehensive income (loss) before reclassifications			3,335	(12,616)
Amounts reclassified from accumulated other comprehensive (loss) income			0	0
Total other comprehensive income (loss)			3,335	(12,616)
Ending balance	(12,343)	(13,511)	(12,343)	(13,511)
Unrealized Holding Gains (Losses), Net of Tax 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			(329)	818
Amounts reclassified from accumulated other comprehensive (loss) income			0	0
Total other comprehensive income (loss)			(329)	818
Ending balance	5	1,321	5	1,321
Unrealized Holding Gains (Losses), Net of Tax On Foreign Currency Foreign Forward Contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(53,136)	(1,581)
Other comprehensive income (loss) before reclassifications			46,175	(20,913)
Amounts reclassified from accumulated other comprehensive (loss) income			30,836	(6,298)
Total other comprehensive income (loss)			77,011	(27,211)
Ending balance	23,875	(28,792)	23,875	(28,792)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(25,159)	(14,121)	(68,480)	(1,973)
Total other comprehensive income (loss)	36,696	(26,861)	80,017	(39,009)
Ending balance	$ 11,537	$ (40,982)	$ 11,537	$ (40,982)