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Defined Contribution and Defined Benefit Retirement Plans - Components of Net Periodic Benefit Cost (Detail) - Defined benefit pension plans - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Foreign Pension Plans Defined Benefit      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 11.3 $ 14.7 $ 13.3
Interest cost 10.5 8.2 10.0
Expected return on plan assets (11.0) (11.2) (8.7)
Amortization of prior service cost 0.1 0.2 0.2
Recognized actuarial losses 12.5 19.4 17.3
Settlements (0.3)    
Total 23.7 31.3 32.1
U S      
Defined Benefit Plan Disclosure [Line Items]      
Interest cost 0.4 0.5 0.6
Expected return on plan assets (0.6) (0.6) (0.6)
Recognized actuarial losses 0.6 0.6 0.6
Settlements   $ (0.5)  
Total $ 0.4   $ 0.6