CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 4,554	$ 5,667	$ 15,454	$ 15,565
Other comprehensive (loss) income
Mark to market of foreign exchange hedges, net of tax benefit (expense) of $7 and $34 for the three months and nine months ended September 30, 2018, respectively, and $(34) and $(195) for the three months and nine months ended September 30, 2017, respectively	(24)	58	(113)	337
Total other comprehensive (loss) income	(24)	58	(113)	337
Comprehensive income	$ 4,530	$ 5,725	$ 15,341	$ 15,902