CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (12,045)	$ (7,447)
Other comprehensive (loss) income, net of tax
Foreign currency translation adjustment, net of income tax expense of $0 and $60 for the three months ended March 31, 2016 and 2015, respectively	(101)	69
Unrealized gain on available-for-sale securities, net of income tax expense of $0 for both of the three months ended March 31, 2016 and 2015	75	0
Other comprehensive (loss) income, net of tax	(26)	69
Comprehensive loss	$ (12,071)	$ (7,378)