INTANGIBLE ASSETS (Details Textual) - USD ($) $ in Thousands			1 Months Ended									3 Months Ended	12 Months Ended
	Mar. 06, 2014	Jan. 02, 2014	Dec. 31, 2017	Feb. 28, 2017	Apr. 30, 2016	Jan. 31, 2016	Aug. 31, 2015	Jul. 31, 2015	May 31, 2015	Mar. 31, 2015	Dec. 26, 2013	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2013
GOODWILL AND INTANGIBLE ASSETS
Amortization of Intangible Assets													$ 26,700	$ 21,400	$ 6,200
Payments to Acquire Intangible Assets				$ 30,600									97,624	144,494	30,500
Goodwill			$ 1,838									$ 1,838	1,838	1,838
Finite-Lived Intangible Assets, Gross			284,716									203,992	284,716	203,992
Accrued Royalties Related To Asset Purchase													0	3,882	0
Asset Acquisition Purchase Price				30,600
Impairment of Intangible Assets, Finite-lived													$ 903	6,685	$ 0
Assets Held-for-sale, Not Part of Disposal Group, Current												900		900
Acquired Finite-lived Intangible Asset, Amortization Description													we are amortizing 80% of the value of the intangible assets over the first five years of useful lives of the assets and amortizing the remaining 20% of the value of the intangible assets over the second five years of useful lives of the assets.
Cranford Pharmaceuticals [Member] | Non Compete Agreement [Member]
GOODWILL AND INTANGIBLE ASSETS
Finite-Lived Intangible Asset, Useful Life					7 years
Finite-Lived Intangible Assets, Gross					$ 600
Inderal XL [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets				$ 20,200
Finite-Lived Intangible Asset, Useful Life				10 years									10 years
Finite-Lived Intangible Assets, Gross				$ 15,100
Acquisition Costs Capitalized				40
InnoPran XL [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets				$ 30,600
Finite-Lived Intangible Asset, Useful Life				10 years
Finite-Lived Intangible Assets, Gross				$ 19,000
Acquisition Costs Capitalized				100
InnoPran XL [Member] | Line of Credit [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets				30,000
InnoPran XL [Member] | Cash [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets				$ 600
Inderal LA [Member]
GOODWILL AND INTANGIBLE ASSETS
Asset Acquisition Purchase Price					64,200
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		10 years
Finite-Lived Intangible Assets, Gross			42,076					$ 25,000		$ 4,500		42,076	$ 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			11,042				$ 1,000					11,042	$ 11,042	11,042
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
New Drug Applications [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets					64,200
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] | Cranford Pharmaceuticals [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets					$ 60,000
Finite-Lived Intangible Asset, Useful Life					10 years
Finite-Lived Intangible Assets, Gross					$ 52,400
Acquisition Costs Capitalized					300
Accrued Royalties Related To Asset Purchase					$ 3,900
New Drug Applications [Member] | Testosterone Gel NDA [Member]
GOODWILL AND INTANGIBLE ASSETS
Maximum Royalties Potentially Payable									$ 5,000			$ 5,000
Royalty Rate									5.00%			5.00%
Finite-Lived Intangible Assets, Gross												$ 10,900		10,900		$ 10,900
Impairment of Intangible Assets, Finite-lived													900	$ 6,700
Teva Pharmaceuticals [Member]
GOODWILL AND INTANGIBLE ASSETS
Intangible Asset Purchase Agreement Payment	$ 4,000	$ 8,500
AstraZeneca AB and AstraZeneca UK Limited [Member] | New Drug Applications [Member]
GOODWILL AND INTANGIBLE ASSETS
Payments to Acquire Intangible Assets			$ 46,500
Finite-Lived Intangible Asset, Useful Life			10 years
Finite-Lived Intangible Assets, Gross			$ 46,700										$ 46,700
Acquisition Costs Capitalized			$ 200