CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (9,759)		$ (3,839)		$ (20,985)	$ (11,911)
Other comprehensive loss:
Foreign currency translation adjustments	(7)	[1]	(10)	[1]	25	(41)
Comprehensive loss	$ (9,766)		$ (3,849)		$ (20,960)	$ (11,952)

[1] Reclassifications out of Other comprehensive income (loss) into Net loss were not significant.