Annual report pursuant to Section 13 and 15(d)

Income Taxes - Components of Income before Income Taxes (Detail)

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Income Taxes - Components of Income before Income Taxes (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]      
Domestic $ (167.7) $ (94.1) $ (72.0)
Foreign 337.1 297.1 496.8
Income before income taxes $ 169.4 $ 203.0 $ 424.8