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GOODWILL AND INTANGIBLE ASSETS - Expenses and Impairment (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Aug. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Rolling Maturity [Abstract]      
2016   $ 14,870  
2017   10,586  
2018   6,817  
2019   5,154  
2020   2,192  
Thereafter   5,324  
Total   44,943 $ 29,605
Impairment of goodwill and identifiable intangible assets      
Goodwill and Intangible Asset Impairment   $ 1,162  
Minus - 10      
Impairment of goodwill and identifiable intangible assets      
Equity interest sold 100.00%