CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Net revenues	$ 48,615	$ 31,479	$ 129,481	$ 67,913
Costs and operating expenses:
Cost of product sales	12,036	12,664	36,906	32,390
Selling, general and administrative expense	27,419	14,080	73,262	40,535
Research and development expense	3,180	290	5,644	1,604
(Gain) loss on sale of PML (including impairment charge)	0	(13)	0	6,659
Depreciation and amortization expense	25,733	10,159	66,492	14,319
Change in fair value of contingent consideration	(3,596)	0	(3,596)	0
Restructuring costs	(4)	0	1,193	0
Total costs and operating expenses	64,768	37,180	179,901	95,507
Loss from operations	(16,153)	(5,701)	(50,420)	(27,594)
Other income (expense):
Interest income	43	118	343	310
Cost of inducement	0	0	(19,500)	0
Loss on extinguishment of debt	(1,112)	0	(1,112)	0
Change in fair value of derivative liability	10,527	0	19,230	0
Interest expense	(9,687)	(5,453)	(29,008)	(9,143)
Total other expense, net	(229)	(5,335)	(30,047)	(8,833)
Loss before income tax (benefit) expense	(16,382)	(11,036)	(80,467)	(36,427)
Income tax (benefit) expense	(5,642)	655	(13,818)	(8,960)
Net loss	$ (10,740)	$ (11,691)	$ (66,649)	$ (27,467)
Net loss per share, basic	$ (0.18)	$ (0.31)	$ (1.31)	$ (0.73)
Net loss per share, diluted	$ (0.18)	$ (0.31)	$ (1.31)	$ (0.73)
Weighted-average common shares, basic	60,974	38,121	50,702	37,743
Weighted-average common shares, diluted	60,974	38,121	50,702	37,743