Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income	$ 45,413	$ 35,756
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	(2,474)	(2,882)
Change in unrealized loss on available-for-sale securities, net of tax of $124 and $55, respectively	(654)	(1,653)
Other comprehensive loss, net of tax	(3,128)	(4,535)
Comprehensive income	$ 42,285	$ 31,221