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FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Loss on sale of investments         $ 100
Goodwill impairment expense   $ 57,816 [1]   $ 175,400  
Minimum [Member]          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Estimated future cash flows discount rate 10.00%        
Maximum [Member]          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Estimated future cash flows discount rate 13.50%        
Level 1 [Member]          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair value at beginning of period $ 0 0 $ 1,837 0 1,837
Investment during the period   0 0    
Realized and unrealized gains (losses) included in other comprehensive income   0 (149)    
Proceeds on sale of investment   0 (1,688)    
Fair value at end of period $ 0 0 $ 0 $ 0 $ 0
Payment for investment   $ 1,700      
[1] Impairment of goodwill associated with acquisition of B27.