FAIR VALUE DISCLOSURES (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended								3 Months Ended		12 Months Ended
	Apr. 30, 2016	Jan. 31, 2016	Aug. 31, 2015	Jul. 31, 2015	May 31, 2015	Mar. 31, 2015	Aug. 31, 2014	Jul. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate											15.00%
Payments to Acquire Intangible Assets											$ 144,494	$ 30,500	$ 34,634
Long-term Debt, Gross											143,750	143,750
Long-term Debt, Total											120,643	113,427
Finite-Lived Intangible Assets, Gross											203,992	76,498
Property, Plant and Equipment, Net, Total											10,998	7,131
Inventory, Net, Total											26,183	13,387
Inventory, Finished Goods, Gross											10,812	1,897
Accrued Royalties Related To Asset Purchase											3,882	$ 0	$ 0
Cranford Pharmaceuticals [Member] | Non Compete Agreement [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate	10.00%
Finite-Lived Intangible Assets, Gross	$ 600
Finite-Lived Intangible Asset, Useful Life	7 years
Cranford Pharmaceuticals [Member] | Prepaid Purchase Order [Member]
Fair Value Inputs, Assets, Quantitative Information
Prepaid Expense and Other Assets, Current	$ 300
Merck Sharp Dohme B.V [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate		10.00%
Finite-Lived Intangible Assets, Gross		$ 75,000
Finite-Lived Intangible Asset, Useful Life		10 years
Acquisition Costs Capitalized		$ 300
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information
Theoretical Interest Rate For Debt Without Embedded Conversion Option													9.00%
Fair Value, Inputs, Level 1 [Member]
Fair Value Inputs, Assets, Quantitative Information
Notes Payable, Fair Value Disclosure											166,400
Convertible Senior Notes [Member]
Fair Value Inputs, Assets, Quantitative Information
Long-term Debt, Gross													$ 143,800
Exercise Price Of Bond Hedge													$ 69.48
Underlying Shares Of Common Stock Bond Hedge												2,068,792	2,068,792
Class of Warrant or Right, Exercise Price of Warrants or Rights												$ 96.21	$ 96.21
Net Adjustments To Additional Paid In Capital Bond Hedge Acquired Warrant Issued Net													$ 15,600
Lithobid Purchase Agreement [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate								10.00%
Payments to Acquire Intangible Assets								$ 11,000
Finite-Lived Intangible Assets, Gross								$ 12,000
Finite-Lived Intangible Asset, Useful Life								10 years
Acquisition Costs Capitalized								$ 45
Inventory, Net, Total								$ 86
Vancocin Purchase Agreement [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate							10.00%
Payments to Acquire Intangible Assets							$ 11,000
Finite-Lived Intangible Assets, Gross							$ 10,500
Finite-Lived Intangible Asset, Useful Life							10 years
Acquisition Costs Capitalized							$ 100
Property, Plant and Equipment, Net, Total							$ 200
Property, Plant and Equipment, Useful Life							10 years
Inventory, Net, Total							$ 400
New Drug Applications [Member] | Cranford Pharmaceuticals [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate	12.00%
Payments to Acquire Intangible Assets	$ 60,000
Finite-Lived Intangible Assets, Gross	$ 52,400
Finite-Lived Intangible Asset, Useful Life	10 years
Acquisition Costs Capitalized	$ 300
Inventory, Finished Goods, Gross	10,900
Funds Held In Escrow In Relation To Asset Purchase	5,000
Accrued Royalties Related To Asset Purchase	3,900
Asset Acquisition Purchase Price	$ 64,200
Acquired ANDA Intangible Assets [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate				10.00%		10.00%				10.00%
Payments to Acquire Intangible Assets				$ 25,000		$ 4,500			$ 4,500	$ 12,500
Finite-Lived Intangible Assets, Gross				$ 25,000		$ 4,500			$ 4,500		$ 42,076	$ 42,076
Finite-Lived Intangible Asset, Useful Life				10 years		10 years			10 years	10 years	10 years	10 years	10 years
Marketing and Distribution Rights [Member]
Fair Value Inputs, Assets, Quantitative Information
Finite-Lived Intangible Assets, Gross			$ 1,000								$ 11,042	$ 1,000
Finite-Lived Intangible Asset, Useful Life			7 years								4 years 8 months 12 days
Marketing and Distribution Rights [Member] | H2 - Pharma, LLC [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate		10.00%
Payments to Acquire Intangible Assets		$ 8,800
Finite-Lived Intangible Assets, Gross		10,000
Acquisition Costs Capitalized		42
Accrued Royalties Assumed in Asset Purchase		$ 1,200
Testosterone Gel NDA [Member] | Prepaid Expenses and Other Current Assets [Member]
Fair Value Inputs, Assets, Quantitative Information
Assets Held-for-sale, Not Part of Disposal Group, Current											$ 900
Testosterone Gel NDA [Member] | New Drug Applications [Member]
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate											30.00%
Finite-Lived Intangible Assets, Gross											$ 10,900
Royalty Rate					5.00%
Maximum Royalties Potentially Payable					$ 5,000