CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net loss	$ (274,158)	$ (220,872)	$ (123,603)
Other comprehensive income (loss):
Net unrealized gains (reclassification adjustment) on marketable securities	(20)	20
Cumulative translation adjustment	(40)
Defined benefit pension obligation	(1,495)
Other comprehensive income (loss)	(1,555)	20
Comprehensive loss	$ (275,713)	$ (220,852)	$ (123,603)