Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 665,428	$ 491,885	$ 1,303,120	$ 928,358
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(973)	41	(2,377)	333
Available-for-sale investments:
Change in net unrealized gains (losses) on available-for-sale securities	(2,156)	(3,744)	(9,347)	4,509
Reclassification adjustment included in net income	0	0	(6)	3,858
Other comprehensive income (loss)	(3,129)	(3,703)	(11,730)	8,700
Comprehensive income	$ 662,299	$ 488,182	$ 1,291,390	$ 937,058