Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 272,259	$ 180,366
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(373)	(541)
Net change in unrealized gains (losses) on available-for-sale securities	(21,828)	(561)
Other comprehensive income (loss)	(22,201)	(1,102)
Comprehensive income	$ 250,058	$ 179,264