Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 747,938	$ 545,327	$ 2,051,058	$ 1,473,685
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	1,541	(1,378)	(836)	(1,045)
Available-for-sale investments:
Change in net unrealized gains (losses) on available-for-sale securities	23,126	3,446	13,779	7,955
Reclassification adjustment included in net income	(21)	(26)	(27)	3,832
Other comprehensive income (loss)	24,646	2,042	12,916	10,742
Comprehensive income	$ 772,584	$ 547,369	$ 2,063,974	$ 1,484,427