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Income Taxes - Narrative (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Income Tax Disclosure [Abstract]        
Income Tax Expense (Benefit) $ 1.9 $ (14.6) $ 0.1 $ (14.1)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     21.00%