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COMMITMENTS AND CONTINGENCIES - Additional Information (Details)
$ in Millions
12 Months Ended
Aug. 04, 2016
lawsuit
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Commitments and Contingencies Disclosure [Abstract]        
Rental expense | $   $ 18.5 $ 18.6 $ 26.6
Number of lawsuits | lawsuit 5