Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenues:
Product sales, net	$ 3,534	$ 1,290
Cost and expenses:
Cost of goods sold	1,720	416
Research and development	7,246	3,728
Selling, general and administrative	24,252	16,637
Operating expenses	33,218	20,781
Operating loss	(29,684)	(19,491)
Interest expense on convertible notes	(4,384)	(3,111)
Investment income, net	43	30
Other (expense) income, net	(173)	1,632
Loss before income taxes	(34,198)	(20,940)
Income tax benefit		7,410
Net loss	$ (34,198)	$ (13,530)
Loss per common share:
Basic and diluted	$ (0.49)	$ (0.19)
Weighted-average number of common and common equivalent shares:
Basic and diluted	70,470	69,995