Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income	$ 26,181	$ 21,856
Other comprehensive income, net of tax:
Foreign currency translation adjustments	3,677	4,389
Change in unrealized gain (loss) on available-for-sale securities, net of tax of $(98) and $0, respectively	826	(1,160)
Total other comprehensive income, net of tax	4,503	3,229
Comprehensive income	$ 30,684	$ 25,085