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Retirement Benefits - Schedule of Components of Net Periodic Benefit Cost for Defined Benefit Plans and Other Postretirement Plans (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pension Benefits | U.S. Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost $ 0.1 $ 0.1 $ 0.1
Interest cost 0.4 0.4 0.2
Expected return on plan assets (0.3) (0.2) (0.2)
Settlement gain recognized 0.0 0.0 0.0
Net amortization 0.3 0.1 0.3
Net periodic cost 0.5 0.4 0.4
Pension Benefits | Non-U.S. Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 1.5 1.2 1.8
Interest cost 2.6 2.8 1.0
Expected return on plan assets (1.8) (1.6) (1.3)
Settlement gain recognized (0.3) (0.1) 0.0
Net amortization (0.1) (0.6) 0.6
Net periodic cost 1.9 1.7 2.1
Other Benefits      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 0.5 0.4 0.7
Interest cost 0.8 0.8 0.5
Net amortization (0.9) (0.9) (0.5)
Net periodic cost $ 0.4 $ 0.3 $ 0.7