UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net income	$ 2,418	$ 6,325	$ 15,070	$ 15,364
Other comprehensive loss, net:
Unrealized (loss) gain on available-for-sale marketable securities, net of tax	(174)	162	168	167
Foreign currency translation adjustments	(169)	(928)	(1,400)	(2,262)
Total other comprehensive loss, net	(343)	(766)	(1,232)	(2,095)
Comprehensive income	$ 2,075	$ 5,559	$ 13,838	$ 13,269