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Postretirement and Other Benefits (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
U.S. Pension Benefits [Member]        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost $ 0.0 $ 0.0 $ 0.0 $ 0.0
Interest cost 1.3 1.2 3.9 3.8
Expected return on plan assets (1.7) (1.8) (5.1) (5.3)
Amortizations and other 0.8 1.1 2.8 3.9
Net periodic benefit cost 0.4 0.5 1.6 2.4
Amortization of accumulated other comprehensive loss related to benefit plans     3.9  
French Pension Benefits [Member]        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost 0.2 0.3 0.8 0.9
Interest cost 0.2 0.1 0.4 0.3
Expected return on plan assets (0.1) (0.1) (0.2) (0.2)
Amortizations and other 0.3 0.3 0.8 0.9
Net periodic benefit cost 0.6 0.6 1.8 1.9
Amortization of accumulated other comprehensive loss related to benefit plans     1.0  
U.S. OPEB Benefits [Member]        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost 0.0 0.0 0.0 0.0
Interest cost 0.0 0.0 0.0 0.0
Expected return on plan assets 0.0 0.0 0.0 0.0
Amortizations and other 0.1 0.1 0.2 (0.1)
Net periodic benefit cost $ 0.1 $ 0.1 $ 0.2 $ (0.1)