Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 8,751	$ 7,789	$ 15,069	$ 13,983
Other comprehensive income (loss), net of reclassification adjustments:
Foreign currency translation adjustments	2,305	87	1,428	119
Other comprehensive income (loss)	2,305	87	1,428	119
Comprehensive income	$ 11,056	$ 7,876	$ 16,497	$ 14,102