Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 851,928	$ 667,434	$ 1,571,990	$ 2,107,457
Other comprehensive income (loss):
Unrealized holding (losses) gains on marketable securities, net	(56)	(1,132)	(329)	818
Unrealized gains (losses) on foreign currency forward contracts, net of tax of $(9.6) million, $7.6 million, $(21.2) million and $7.3 million, respectively	34,766	(26,313)	77,011	(27,211)
Foreign currency translation adjustment	1,986	584	3,335	(12,616)
Total other comprehensive income (loss)	36,696	(26,861)	80,017	(39,009)
Comprehensive income	$ 888,624	$ 640,573	$ 1,652,007	$ 2,068,448