Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,852,054	$ 2,087,321	$ 1,352,446
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(4,156)	825	(3,215)
Available-for-sale investments:
Changes in net unrealized gains (losses) on available-for-sale securities	(5,657)	25,939	(23,025)
Less: reclassification adjustment for net (gains) losses included in net income	(47)	3,816	632
Other comprehensive income (loss)	(9,860)	30,580	(25,608)
Comprehensive income	$ 2,842,194	$ 2,117,901	$ 1,326,838