Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)		$ (1,719)	$ 2,724	$ (5,754)	$ (5,666)
Currency translation adjustment-net of tax	[1]	148	53	557	(755)
Comprehensive income (loss)		$ (1,571)	$ 2,777	$ (5,197)	$ (6,421)

[1] Net of income tax (provision) benefit of $(99) and $(35) for the three months ended June 30, 2016 and 2015, respectively and $(370) and $500 for the six months ended June 30, 2016 and 2015, respectively.