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Pension and Postretirement Benefit Plans (Various Tables) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Fair value of plan assets, aggregate projected benefit obligation and accumulated benefit obligation    
Fair value of plan assets $ 37.3 $ 39.4
Projected benefit obligation 220.2 209.8
Accumulated benefit obligation 209.3 199.0
Pension plan    
Defined Benefit Plan Disclosure [Line Items]    
Unrecognized net actuarial (gains) losses 280.2 270.0
Net prior service cost $ 31.4 32.5
Pension plan | U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Average amortization period of losses related to defined benefit pension plans 13 years  
Fair value of plan assets, aggregate projected benefit obligation and accumulated benefit obligation    
Fair value of plan assets $ 0.0 3.3
Projected benefit obligation 104.9 106.1
Accumulated benefit obligation $ 104.1 103.4
Pension plan | U.K    
Defined Benefit Plan Disclosure [Line Items]    
Average amortization period of losses related to defined benefit pension plans 18 years  
ENPP    
Defined Benefit Plan Disclosure [Line Items]    
Average amortization period of losses related to defined benefit pension plans 6 years  
Postretirement benefits    
Defined Benefit Plan Disclosure [Line Items]    
Net prior service cost $ 3.0 3.1
Postretirement benefits | U.S. and Brazil    
Defined Benefit Plan Disclosure [Line Items]    
Unrecognized net actuarial (gains) losses (0.2) (2.0)
Postretirement benefits | U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Unrecognized net actuarial (gains) losses $ (1.2) $ (1.1)