Stock-Based Compensation (Details 2) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Stock-based compensation
Stock-based compensation expense	$ 7,747,000	$ 7,162,000	$ 21,281,000	$ 13,257,000
Total stock-based compensation expense capitalized to inventory	78,000	28,000	95,000	170,000
Stock options
Stock-based compensation
Total unrecognized compensation cost related to unvested stock-based compensation	2,200,000		2,200,000
RSUs
Stock-based compensation
Total unrecognized compensation cost related to unvested stock-based compensation	1,800,000		1,800,000
RSAs
Stock-based compensation
Total unrecognized compensation cost related to unvested stock-based compensation	19,500,000		19,500,000
Continuing operations
Stock-based compensation
Stock-based compensation expense	3,595,000	2,168,000	9,652,000	3,902,000
Discontinued operation
Stock-based compensation
Stock-based compensation expense	4,152,000	4,994,000	11,629,000	9,355,000
Research and development | Continuing operations
Stock-based compensation
Stock-based compensation expense	514,000	198,000	1,232,000	307,000
General and administrative | Continuing operations
Stock-based compensation
Stock-based compensation expense	$ 3,081,000	$ 1,970,000	$ 8,420,000	$ 3,595,000