CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net revenues	$ 46,977	$ 17,382	$ 80,866	$ 36,434
Costs and operating expenses:
Cost of product sales	13,794	9,380	24,870	19,726
Selling, general and administrative expense	24,857	13,222	45,843	26,455
Research and development expense	1,470	345	2,464	1,314
Loss on sale of PML (including impairment charge)	0	215	0	6,672
Depreciation and amortization expense	22,326	1,969	40,759	4,160
Restructuring costs	(108)	0	1,197	0
Total costs and operating expenses	62,339	25,131	115,133	58,327
Loss from operations	(15,362)	(7,749)	(34,267)	(21,893)
Other income (expense):
Interest income	244	100	300	192
Cost of inducement	(19,500)	0	(19,500)	0
Change in fair value of derivative liability	8,703	0	8,703	0
Interest expense	(9,923)	(2,334)	(19,321)	(3,690)
Total other expense, net	(20,476)	(2,234)	(29,818)	(3,498)
Loss before income tax benefit	(35,838)	(9,983)	(64,085)	(25,391)
Income tax benefit	(3,603)	(3,749)	(8,176)	(9,615)
Net loss	$ (32,235)	$ (6,234)	$ (55,909)	$ (15,776)
Net loss per share, basic	$ (0.62)	$ (0.16)	$ (1.23)	$ (0.42)
Net loss per share, diluted	$ (0.62)	$ (0.16)	$ (1.23)	$ (0.42)
Weighted-average common shares, basic	52,399	37,828	45,481	37,551
Weighted-average common shares, diluted	52,399	37,828	45,481	37,551