INCOME TAXES (Details 6) (USD $)
In Millions, unless otherwise specified
4 Months Ended 12 Months Ended 5 Months Ended
Dec. 31, 2012
Dec. 31, 2014
item
Dec. 31, 2013
Aug. 30, 2012
Reconciliation of the change in the amount of unrecognized tax benefits        
Balance at beginning of period $ 24.5 $ 27.4 $ 24.0  
Gross increases-current period tax positions   1.6 3.8  
Gross increases-prior periods tax position   1.5    
Favorable resolutions with authorities     (0.4)  
Cash settlements (0.5)      
Balance at end of period 24.0 30.5 27.4  
Number of subsidiaries files income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions   1    
Predecessor        
Reconciliation of the change in the amount of unrecognized tax benefits        
Balance at beginning of period       24.8
Gross increases-current period tax positions       0.6
Cash settlements       (0.9)
Balance at end of period       $ 24.5