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Other Post-Employment Benefit Plans - Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Loss (Income) (Details) - Other Post-Employment Benefits and Other Employee Benefit Plans - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]    
Current year actuarial loss (gain) $ (1.6) $ (5.0)
Amortization of actuarial gain 0.1 0.1
Amortization of prior service credit 0.3 0.3
Total recognized in other comprehensive loss (1.2) (4.6)
U.S plan    
Defined Benefit Plan Disclosure [Line Items]    
Current year actuarial loss (gain) (1.6) (4.9)
Amortization of actuarial gain 0.0 0.0
Amortization of prior service credit 0.3 0.3
Total recognized in other comprehensive loss (1.3) (4.6)
International    
Defined Benefit Plan Disclosure [Line Items]    
Current year actuarial loss (gain) 0.0 (0.1)
Amortization of actuarial gain 0.1 0.1
Amortization of prior service credit 0.0 0.0
Total recognized in other comprehensive loss $ 0.1 $ 0.0