CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues:
U.S. product sales, net	$ 89,564	$ 77,415
Service revenues, net	19,520
License fee and other collaboration revenues	216	12,090
Total revenues	109,300	89,505
Costs and expenses:
Cost of product sales	18,300	21,026
Cost of services	5,526
Research and development expenses	14,229	6,988
Selling, general and administrative expenses	63,175	32,112
Restructuring expenses	622	571
Total costs and expenses	101,852	60,697
Operating income (loss)	7,448	28,808
Other income (expense):
Interest expense	(18,443)	(10,367)
Interest and dividend income, net	708	71
Other income (expense)	220
Total other income (expense)	(17,515)	(10,296)
Net income (loss) before income taxes	(10,067)	18,512
Income tax expense (benefit)	(2,540)	5,608
Net income (loss)	$ (7,527)	$ 12,904
Net income (loss) per share:
Basic	$ (0.22)	$ 0.47
Diluted	$ (0.22)	$ 0.39
Weighted average shares outstanding used to compute net income (loss) per share:
Basic	34,739	27,213
Diluted	34,739	38,245