FAIR VALUE DISCLOSURES (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended		12 Months Ended
	Jul. 31, 2015	Mar. 31, 2015	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate			15.00%
Payments to Acquire Intangible Assets	$ 25,000	$ 4,500	$ 30,500	$ 34,634
Long-term Debt, Gross			143,750
Notes Payable, Fair Value Disclosure			131,400
Convertible Debt, Noncurrent			$ 115,193		$ 110,691
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information
Theoretical Interest Rate For Debt Without Embedded Conversion Option					9.00%
Convertible Senior Notes [Member]
Fair Value Inputs, Assets, Quantitative Information
Long-term Debt, Gross					$ 143,800
Exercise Price Of Bond Hedge					$ 69.48
Underlying Shares Of Common Stock Bond Hedge					2,068,792
Class of Warrant or Right, Exercise Price of Warrants or Rights					$ 96.21
Net Adjustments To Additional Paid In Capital Bond Hedge Acquired Warrant Issued Net					$ 15,600