CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (5,775)	$ (2,166)
Other comprehensive income (loss):
Foreign currency translation adjustments	2,901	(10,456)
Total other comprehensive income (loss)	2,901	(10,456)
Comprehensive loss	$ (2,874)	$ (12,622)