INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended		12 Months Ended
	Aug. 31, 2015	Jul. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
GOODWILL AND INTANGIBLE ASSETS
Gross Carrying Amount						$ 203,992	$ 76,498
Accumulated Amortization						(28,200)	(10,101)
Acquired ANDA intangible assets
GOODWILL AND INTANGIBLE ASSETS
Gross Carrying Amount		$ 25,000	$ 4,500	$ 4,500		42,076	42,076
Accumulated Amortization						$ (8,390)	$ (4,287)
Weighted Average Amortization Period		10 years	10 years	10 years	10 years	10 years	10 years	10 years
NDAs and product rights
GOODWILL AND INTANGIBLE ASSETS
Gross Carrying Amount						$ 150,250	$ 33,422
Accumulated Amortization						$ (17,081)	(5,754)
Weighted Average Amortization Period						10 years
Marketing and distribution rights
GOODWILL AND INTANGIBLE ASSETS
Gross Carrying Amount	$ 1,000					$ 11,042	1,000
Accumulated Amortization						$ (2,662)	(60)
Weighted Average Amortization Period	7 years					4 years 8 months 12 days
Non-compete agreement
GOODWILL AND INTANGIBLE ASSETS
Gross Carrying Amount						$ 624	0
Accumulated Amortization						$ (67)	$ 0
Weighted Average Amortization Period						7 years