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Schedule of Pension Plans with Accumulated Benefit Obligation and Projected Benefit Obligation in Excess of Plan Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
UNITED STATES    
Defined Benefit Plan Disclosure    
Projected benefit obligation $ 43.8 $ 58.0
Accumulated benefit obligation 42.3 55.7
Foreign Pension Plans, Defined Benefit    
Defined Benefit Plan Disclosure    
Projected benefit obligation 29.9 45.8
Accumulated benefit obligation 28.6 42.5
Fair value of plan assets $ 2.1 $ 2.0