Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 299,099	$ 196,888	$ 571,358	$ 377,254
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(2,359)	191	(2,732)	(350)
Net change in unrealized gains (losses) on available-for-sale securities	(8,459)	(466)	(30,287)	(1,027)
Other comprehensive income (loss)	(10,818)	(275)	(33,019)	(1,377)
Comprehensive income	$ 288,281	$ 196,613	$ 538,339	$ 375,877