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Pension Plans and Other Postretirement Benefits Narrative (Details) - USD ($)
$ in Millions
Mar. 01, 2016
Mar. 31, 2016
Dec. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Pension liabilities   $ 40.5 $ 9.8
United States Pension Plan of US Entity      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Pension liabilities   $ 31.0  
Other Postretirement Benefit Plan, Defined Benefit      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Discount rate used 4.05%   4.50%
Remeasurement decrease in plan liabilities $ 22.5    
Remeausrement decrease in benefit expense for remainder of 2016 $ 7.5