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Other (Income) Expense, Net - Components of Other Expense (Income), Net (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Other expense (income), net $ (12.0) $ 0.4 $ (15.3)
Defined Benefit Plan [Member]      
Other expense (income), net (8.7) (7.1) (1.1)
Foreign Currency Gain (Loss) [Member]      
Other expense (income), net 3.3 4.6 1.5
Losses (Gains) on Equity Investment [Member]      
Other expense (income), net 0.0 5.0 (11.0)
Other Items, Net [Member]      
Other expense (income), net $ (6.6) $ (2.1) $ (4.7)