Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 637,692	$ 436,473
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(1,404)	292
Available-for-sale investments:
Change in net unrealized gains (losses) on available-for-sale securities	(7,191)	8,253
Reclassification adjustment included in net income	(6)	3,858
Other comprehensive income (loss)	(8,601)	12,403
Comprehensive income	$ 629,091	$ 448,876