Quarterly report [Sections 13 or 15(d)]

Income Taxes - Additional Information (Detail)

v3.25.3
Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2021
Dec. 31, 2020
Income Tax Contingency [Line Items]        
Federal statutory rate 21.00%      
Unrecognized tax benefits   $ 61.9    
Increase in uncertain tax positions due to tax positions $ 63.6      
Subsidiaries [Member]        
Income Tax Contingency [Line Items]        
Income tax examination notice amount     $ 25.0 $ 14.6