CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
U.S. product sales, net	$ 88,917	$ 23,009	$ 250,984	$ 63,017
Service revenues, net	7,177		7,177
License fee and other collaboration revenues	58	2,485	51,380	8,114
Total revenues	96,152	25,494	309,541	71,131
Costs and expenses:
Cost of product sales	19,088	2,968	59,793	8,548
Cost of services	3,261		3,261
Research and development expenses	19,809	5,358	34,981	16,396
Selling, general and administrative expenses	46,141	10,958	110,054	44,733
Acquisition-related costs	8,500	1,917	11,153	1,917
Restructuring expenses	738		1,752
Total costs and expenses	97,537	21,201	220,994	71,594
Operating (loss) income	(1,385)	4,293	88,547	(463)
Other income (expense):
Interest expense	(14,222)	(3,129)	(34,794)	(7,656)
Loss on debt extinguishment	(10,449)		(10,449)
Interest and dividend income, net	524	291	967	809
Other income (expense)	(9,182)	3	(9,180)	119
Total other income (expense)	(33,329)	(2,835)	(53,456)	(6,728)
Net income (loss) before income taxes	(34,714)	1,458	35,091	(7,191)
Income tax benefit (expense)	14,130		(9,513)
Net income (loss)	$ (20,584)	$ 1,458	$ 25,578	$ (7,191)
Net (loss) income per share:
Basic	$ (0.62)	$ 0.07	$ 0.84	$ (0.33)
Diluted	$ (0.62)	$ 0.06	$ 0.73	$ (0.33)
Weighted average shares outstanding used to compute net income (loss) per share:
Basic	33,223	21,984	30,379	21,912
Diluted	33,223	23,467	34,962	21,912