GOODWILL AND INTANGIBLE ASSETS (Details Textual) - USD ($) $ in Thousands	1 Months Ended						3 Months Ended
	Jan. 31, 2016	Aug. 31, 2015	Jul. 31, 2015	May. 31, 2015	Aug. 31, 2014	Jul. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2015
GOODWILL AND INTANGIBLE ASSETS
Amortization of Intangible Assets							$ 4,400	$ 1,200
Payments to Acquire Intangible Assets							84,182	4,500
Goodwill							1,838			$ 1,838
Finite-Lived Intangible Assets, Gross							161,879			76,498
Accrued Royalties Assumed in Asset Purchase							$ 1,199	0
Acquired ANDA Intangible Assets [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets			$ 25,000					$ 4,500	$ 12,500
Finite-Lived Intangible Asset, Useful Life			10 years				10 years		10 years
Finite-Lived Intangible Assets, Gross							$ 42,076			42,076
Marketing and Distribution Rights [Member]
GOODWILL AND INTANGIBLE ASSETS
Finite-Lived Intangible Asset, Useful Life		7 years					4 years 8 months 12 days
Finite-Lived Intangible Assets, Gross		$ 1,000					$ 11,042			$ 1,000
Marketing and Distribution Rights [Member] | H2 - Pharma, LLC [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets	$ 8,800
Finite-Lived Intangible Asset, Useful Life	4 years
Finite-Lived Intangible Assets, Gross	$ 10,000
Acquisition Costs Capitalized	42
Accrued Royalties Assumed in Asset Purchase	1,200
Lithobid Purchase Agreement [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets						$ 11,000
Finite-Lived Intangible Asset, Useful Life						10 years
Finite-Lived Intangible Assets, Gross						$ 12,000
Payment To Acquire Intangible Assets If Contingency Occurs						$ 1,000
Vancocin Purchase Agreement [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets					$ 11,000
Finite-Lived Intangible Asset, Useful Life					10 years
Finite-Lived Intangible Assets, Gross					$ 10,500
New Drug Applications [Member] | Merck Sharp Dohme B.V [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets	$ 75,000
Finite-Lived Intangible Asset, Useful Life	10 years
Finite-Lived Intangible Assets, Gross	$ 75,300
Acquisition Costs Capitalized	$ 300
New Drug Applications [Member] | Testosterone Gel NDA [Member]
GOODWILL AND INTANGIBLE ASSETS
Finite-Lived Intangible Asset, Useful Life				11 years
Maximum Royalties Potentially Payable				$ 5,000
Royalty Rate				5.00%
Finite-Lived Intangible Assets, Gross				$ 10,900