Consolidated Quarterly Financial Data-Unaudited (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended								5 Months Ended	12 Months Ended
	Aug. 17, 2015	Aug. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Trading Securities and Other Trading Assets
U.S. product sales, net													$ 341,816	$ 109,998	$ 71,692
License fee and other collaboration revenues													52,328	14,386	9,164
Total revenues				$ 108,735	$ 96,152	$ 123,884	$ 89,505	$ 53,253	$ 25,494	$ 24,802	$ 20,835		418,276	124,384	80,856
Cost of product sales													78,509	20,306	11,960
Gross profit				83,288	73,803	104,205	68,479	41,495	22,526	22,059	17,998
Operating expenses				60,615	75,188	43,081	39,671	44,869	18,233	20,824	23,989
Interest expense													(53,251)	(14,697)
Interest and dividend income, net													1,512	975	1,051
Net income (loss) before income taxes													39,844	(17,342)	(9,602)
Income tax benefit (expense)													(7,065)	153,159
Net income (loss)				$ 7,201	$ (20,584)	$ 33,258	$ 12,904	$ 143,008	$ 1,458	$ (1,547)	$ (7,102)		$ 32,779	$ 135,817	$ (9,602)
Net income (loss) per share - basic (in dollars per share)				$ 0.21	$ (0.62)	$ 1.09	$ 0.47	$ 5.98	$ 0.07	$ (0.07)	$ (0.33)		$ 1.04	$ 6.06	$ (0.44)
Net income (loss) per share - diluted (in dollars per share)				$ 0.20	$ (0.62)	$ 0.82	$ 0.39	$ 4.67	$ 0.07	$ (0.07)	$ (0.33)		$ 0.93	$ 5.45	$ (0.44)
Loss on debt extinguishment													$ 10,449
CBR Acquisition Holdings Corp
Trading Securities and Other Trading Assets
Total revenues												$ 24,100
Cost of product sales												$ 10,000
Lumara Health
Trading Securities and Other Trading Assets
Total revenues			$ 22,500
Income tax benefit (expense)								$ 153,200						$ (153,200)
2014 Term Loan Facility
Trading Securities and Other Trading Assets
Repayments of Debt		$ 323,000
Loss on debt extinguishment		$ 10,400
2014 Term Loan Facility | Lumara Health
Trading Securities and Other Trading Assets
Repayments of Debt	$ 323,000
Loss on debt extinguishment													$ 10,400