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	$ 7,401	$ 3,716	$ 12,575	$ 6,539
Other comprehensive income (loss):
Interest rate swap	98	(782)	(800)	(860)
Less income tax benefit (expense)	(38)	304	311	334
Foreign currency translation adjustment	702	(62)	(1,609)	(57)
Less income tax benefit (expense)	(33)	(21)	73	31
Total other comprehensive income (loss)	729	(561)	(2,025)	(552)
Total comprehensive income	$ 8,130	$ 3,155	$ 10,550	$ 5,987