Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Product revenue, net	$ 6,363
License revenue	93	64
Service revenue	8	17
Total revenue	6,464	81
Operating expenses:
Cost of product revenue	(269)
Research and development expense	(41,263)	(28,774)
Selling, general and administrative expense	(29,481)	(11,288)
Total operating expenses	(71,013)	(40,062)
Loss from operations	(64,549)	(39,981)
Other income (expense):
Interest income	49	68
Interest expense	(41)	(57)
Revaluation of warrant liability		(15,924)
Foreign exchange loss	(70)
Other income (expense), net	(62)	(15,913)
Provision for income taxes	(59)
Net loss	$ (64,670)	$ (55,894)
Net loss per share - basic and diluted	$ (0.36)	$ (0.35)
Weighted-average number of shares of common stock outstanding - basic and diluted	178,541	160,970