Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues:
Product sales, net	$ 1,984	$ 987	$ 3,274	$ 2,080
Cost and expenses:
Cost of goods sold	1,008	381	1,424	577
Research and development	7,729	7,233	11,457	13,563
Selling, general and administrative	23,856	4,553	40,493	9,499
Operating expenses	32,593	12,167	53,374	23,639
Operating loss	(30,609)	(11,180)	(50,100)	(21,559)
Investment income, net	38	31	68	49
Interest expense on convertible notes	(4,876)		(7,987)
Other (expense) income, net	(202)	6,139	1,430	8,204
Loss before income taxes	(35,649)	(5,010)	(56,589)	(13,306)
Income tax benefit	(5,400)		(12,810)
Net loss	$ (30,249)	$ (5,010)	$ (43,779)	$ (13,306)
Loss per common share:
Basic and diluted	$ (0.43)	$ (0.07)	$ (0.63)	$ (0.20)
Weighted-average number of common and common equivalent shares:
Basic and diluted	70,075	66,906	70,035	66,634