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Pension and Non-pension Post-employment Benefit Plans - Summary of Accrued Benefit Obligations (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Pension Plan      
Disclosure of defined benefit plans [line items]      
Current service cost $ 2.5 $ 1.9 $ 1.9
Past service cost and settlement/curtailment losses 0.0 0.8 0.0
Interest cost $ 0.4 $ 0.5 0.6
Weighted average duration of benefit obligations (in years) 18 years 18 years  
Other benefit plans      
Disclosure of defined benefit plans [line items]      
Current service cost $ 3.4 $ 3.2 2.6
Past service cost and settlement/curtailment losses (0.3) (2.3) (8.0)
Interest cost $ 2.4 $ 2.4 2.6
Weighted average duration of benefit obligations (in years) 12 years 13 years  
Accrued benefit obligations | Pension Plan      
Disclosure of defined benefit plans [line items]      
Accrued benefit obligations, beginning of year $ 396.9 $ 346.0  
Current service cost 2.5 1.9  
Past service cost and settlement/curtailment losses 0.0 (0.8)  
Interest cost 5.6 6.9  
— Changes in demographic assumptions (1.1) (1.2)  
— Changes in financial assumptions (7.6) 41.0  
— Experience adjustments 0.0 0.1  
Settlement payments from employer 0.0 0.0  
Settlement payments from plan 0.0 0.0  
Benefit payments from plan (16.8) (12.5)  
Benefit payments from employer (1.4) (1.1)  
Foreign currency exchange rate changes and other (4.2) 16.6  
Accrued benefit obligations, end of year 373.9 396.9 346.0
Accrued benefit obligations | Other benefit plans      
Disclosure of defined benefit plans [line items]      
Accrued benefit obligations, beginning of year 95.6 87.4  
Current service cost 3.4 3.2  
Past service cost and settlement/curtailment losses 0.3 2.3  
Interest cost 2.4 2.4  
— Changes in demographic assumptions 0.0 0.0  
— Changes in financial assumptions (7.5) 5.0  
— Experience adjustments 0.1 1.3  
Settlement payments from employer (1.1) (4.8)  
Settlement payments from plan (0.2) (0.1)  
Benefit payments from plan (0.5) (0.2)  
Benefit payments from employer (1.7) (2.6)  
Foreign currency exchange rate changes and other (1.7) 1.7  
Accrued benefit obligations, end of year $ 89.1 $ 95.6 $ 87.4