Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 108,839	$ 105,268	$ 65,203
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(1,706)	(7,082)	6,369
Change in unrealized gain (loss) on available-for-sale securities, net of tax of $(203), $209 and $0, respectively	1,773	(274)	(341)
Other comprehensive income (loss), net of tax	67	(7,356)	6,028
Comprehensive income	$ 108,906	$ 97,912	$ 71,231