BUSINESS COMBINATION - Schedule of Identifiable Intangible Assets Acquired Value and Amortization Period (Details) - USD ($) $ in Thousands		Oct. 05, 2015	Mar. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
In-Process Research and Development			$ 171,000	$ 210,600
Tripex Pharmaceuticals LLC [Member]
Business Acquisition [Line Items]
Developed Technology		$ 3,200
In-Process Research and Development		210,600
Total identifiable intangible assets		$ 213,800
Developed technology, Amortization Period	[1]	132 months

[1] Recognized on a straight-line basis.