CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (178,676)	$ (12,882)	$ (82,227)
Foreign currency translation adjustments	(9,872)	(15,193)	3,765
Comprehensive loss	$ (188,548)	$ (28,075)	$ (78,462)