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SUBSEQUENT EVENTS (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Nov. 09, 2018
Dec. 31, 2018
Sep. 30, 2018
Dec. 31, 2019
Dec. 31, 2017
Subsequent Event [Line Items]          
Restructuring reserve     $ 27.0   $ 33.9
Payments for restructuring     $ 20.9    
2018 Optimization Program | Subsequent Event          
Subsequent Event [Line Items]          
Additional capital expenditures, expected cost $ 10.0        
Restructuring charges expected to be paid in cash, percentage 85.00%        
Minimum | 2018 Optimization Program | Subsequent Event          
Subsequent Event [Line Items]          
Expected restructuring and related charges $ 30.0        
Restructuring reserve 8.0        
Maximum | 2018 Optimization Program | Subsequent Event          
Subsequent Event [Line Items]          
Expected restructuring and related charges 40.0        
Restructuring reserve $ 10.0        
Scenario, Forecast | Minimum | 2018 Optimization Program          
Subsequent Event [Line Items]          
Payments for restructuring   $ 6.0   $ 20.0  
Scenario, Forecast | Maximum | 2018 Optimization Program          
Subsequent Event [Line Items]          
Payments for restructuring   $ 8.0   $ 26.0