STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity
Common stock issued (in shares)	8,337,500		21,613,483
Net proceeds from sale of common stock	$ 188,840		$ 295,697
Net proceeds from sale of stock in an underwritten public offering	$ 188,840		278,563
Preferred stock, shares authorized	3,000,000	3,000,000
Shares common stock issued in connection with supply agreement	98,685,595	89,592,779
Shares Issued in Connection with Supply Agreement		$ 2,000
Research and Development expense	$ 100,171	$ 104,381	67,401
Biosyn Corporation
Stockholders' Equity
Shares common stock issued in connection with supply agreement		152,172
Shares Issued in Connection with Supply Agreement		$ 2,000
Research and Development expense		$ 2,000
Underwritten Public Offering
Stockholders' Equity
Net proceeds from sale of stock in an underwritten public offering	$ 188,800		$ 278,600
Class C Preferred Stock
Stockholders' Equity
Preferred stock, shares authorized	3,000,000
Series C-1 Preferred Stock
Stockholders' Equity
Preferred stock, shares authorized	350,000
Cantor Amendment
Stockholders' Equity
Common stock issued (in shares)			2,433,608
Net proceeds from sale of common stock			$ 17,100