Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)		$ 4,560	$ 312	$ (1,194)	$ (5,354)
Currency translation adjustment-net of tax	[1]	39	(639)	596	(1,394)
Net unrealized gain on derivatives—net of tax	[2]	(17)		(17)
Other comprehensive income (loss)—net of tax		22	(639)	579	(1,394)
Comprehensive income (loss)		$ 4,582	$ (327)	$ (615)	$ (6,748)

[1] Net of income tax (provision) benefit of $(25) and $422 for the three months ended September 30, 2016 and 2015, respectively and $(395) and $922 for the nine months ended September 30, 2016 and 2015, respectively.

[2] Net of income tax benefit of $11 for the three and nine months ended September 30, 2016, respectively.