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Income Taxes - Schedule of Income Before Income Tax Domestic and Foreign (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Domestic $ 38.4 $ (88.3) $ (67.3)
Foreign 174.0 61.5 71.6
Income (loss) from continuing operations before income taxes $ 212.4 $ (26.8) $ 4.3