Quarterly report [Sections 13 or 15(d)]

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Income Tax Disclosure [Abstract]        
Income taxes $ 22.8 $ 29.8 $ 53.2 $ 50.2
Total amount of unrecognized tax benefits, including related interest and penalties 43.5   43.5  
Unrecognized tax benefits excluding interest and penalties that if recognized would affect the effective tax rate 32.3   32.3  
Total accrued interest for tax contingencies 7.3   7.3  
Total accrued penalties for tax contingencies $ 1.0   $ 1.0