Accumulated Other Comprehensive Loss - Schedule of 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
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 4,476,657	$ 3,904,295	$ 4,251,296	$ 3,657,958
Other comprehensive loss	(22,169)	11,453	(33,525)	(710)
Ending balance	4,582,445	4,107,617	4,582,445	4,107,617
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(31,557)	(57,307)	(20,201)	(45,144)
Ending balance	(53,726)	$ (45,854)	(53,726)	$ (45,854)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance			(33,295)
Other comprehensive loss			(28,444)
Ending balance	(61,739)		(61,739)
Net Unrealized Gains (Losses) on Investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance			13,094
Other comprehensive loss			(5,081)
Ending balance	$ 8,013		$ 8,013