Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 151,517	$ 131,400
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	5,366	(2,923)
Unrealized gain (loss) on investments:
Unrealized gains (losses) during the period, net of income taxes of $(926) and $367	3,101	(1,231)
Reclassification adjustment for gains realized in net income, net of income taxes of $9 and $31	(32)	(105)
Total other comprehensive income (loss), net of tax	8,435	(4,259)
Comprehensive income	$ 159,952	$ 127,141