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Postretirement and Other Benefits (Details) - Pension Benefits - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
United States        
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 0.8 0.7 1.6 1.4
Expected return on plan assets (1.0) (1.0) (2.0) (2.0)
Amortizations and other 0.4 0.9 0.8 1.8
Net periodic benefit cost 0.2 0.6 0.4 1.2
France        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost 0.3 0.4 0.7 0.7
Interest cost 0.0 0.1 0.1 0.1
Expected return on plan assets 0.0 0.0 0.0 0.0
Amortizations and other 0.2 0.2 0.3 0.5
Net periodic benefit cost 0.5 0.7 1.1 1.3
United Kingdom        
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 0.6 0.8 1.1 0.8
Expected return on plan assets (0.7) (0.9) (1.3) (0.9)
Amortizations and other 0.0 0.0 0.0 0.0
Net periodic benefit cost $ (0.1) $ (0.1) $ (0.2) $ (0.1)