v3.26.3
Exit Costs - Additional Information (Detail) - North Louisiana - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Restructuring Cost And Reserve [Line Items]    
Accretion Expense $ 20.0 $ 25.5
Divestiture Contract Obligations Change in Estimate $ 2.9