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	$ 4,714	$ 8,113	$ 8,821	$ 12,430
Foreign currency translation adjustments	3,487	1,588	(1,098)	1,228
Comprehensive income	$ 8,201	$ 9,701	$ 7,723	$ 13,658