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Restructuring Additional Information (Details) - USD ($)
$ in Millions
Jun. 30, 2017
Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Current $ 35.7 $ 26.2
Restructuring Reserve, Noncurrent 13.6 $ 21.8
2014 Project [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring and Related Cost, Cost Incurred to Date $ 48.5