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PENSION PLANS AND RETIREMENT BENEFITS (Details Textuals) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Oct. 05, 2015
Defined Benefit Plan Disclosure [Line Items]          
Defined contribution pension plans expense $ 8.2 $ 4.6 $ 14.8 $ 8.9  
Curtailments/settlements       (0.2)  
Employer's contribution to defined benefit pension     0.7 0.3  
United States Pension Plan of US Entity          
Defined Benefit Plan Disclosure [Line Items]          
Curtailments/settlements $ 0.0 $ 0.0 $ 0.0 $ 0.1  
Minimum          
Defined Benefit Plan Disclosure [Line Items]          
Contribution to individual retirement account as a percentage of employees eligible compensation 5.00%   5.00%    
Maximum          
Defined Benefit Plan Disclosure [Line Items]          
Contribution to individual retirement account as a percentage of employees eligible compensation 10.00%   10.00%    
DCP Business          
Defined Benefit Plan Disclosure [Line Items]          
Pension liabilities assumed         $ 442.3
DCP Business | United States Pension Plan of US Entity          
Defined Benefit Plan Disclosure [Line Items]          
Pension liabilities assumed         281.7
DCP Business | Foreign Pension Plan          
Defined Benefit Plan Disclosure [Line Items]          
Pension liabilities assumed         $ 160.6