CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Net revenues	$ 41,468	$ 48,615	$ 110,683	$ 129,481
Costs and operating expenses:
Cost of product sales	10,840	12,036	34,272	36,906
Selling, general and administrative expense	22,173	27,419	73,615	73,262
Research and development expense	1,712	3,180	5,139	5,644
Depreciation and amortization expense	20,700	25,733	65,426	66,492
Change in fair value of contingent consideration	516	(3,596)	(8,958)	(3,596)
Loss from disposal and impairments of assets	652	0	2,423	0
Restructuring costs	2,277	(4)	2,277	1,193
Total costs and operating expenses	58,870	64,768	174,194	179,901
Loss from operations	(17,402)	(16,153)	(63,511)	(50,420)
Other income (expense):
Interest income	0	43	0	153
Interest expense	(8,857)	(9,687)	(26,818)	(28,818)
Change in fair value of derivative liability	(209)	10,527	6,744	19,230
Foreign currency transaction gain	31	0	98	0
Loss on extinguishment of debt	0	(1,112)	0	(1,112)
Cost of inducement	0	0	0	(19,500)
Total other expense, net	(9,035)	(229)	(19,976)	(30,047)
Loss before income tax expense (benefit)	(26,437)	(16,382)	(83,487)	(80,467)
Income tax expense (benefit)	1	(5,642)	26	(13,818)
Net loss	$ (26,438)	$ (10,740)	$ (83,513)	$ (66,649)
Net Loss per share, basic	$ (2.99)	$ (1.76)	$ (11.57)	$ (13.15)
Net Loss per share, diluted	$ (2.99)	$ (1.76)	$ (11.57)	$ (13.15)
Weighted-average common shares, basic	8,842	6,097	7,215	5,070
Weighted-average common shares, diluted	8,842	6,097	7,215	5,070