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Income Taxes - Components of Income Tax Expense (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Current:      
Federal $ 12.4 $ 6.1 $ 13.8
State and local 2.6 0.5 2.3
Foreign 19.4 6.8 22.9
Total Current Income Tax 34.4 13.4 39.0
Deferred:      
Federal (1.9) (2.8) (3.0)
State and local (0.3) (0.4) (0.5)
Foreign 9.1 0.8 2.7
Total Deferred Income Tax 6.9 (2.4) (0.8)
Total $ 41.3 $ 11.0 $ 38.2