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Landfill Accounting - Final Capping, Closure and Post-Closure Liability (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Landfill Accounting [Abstract]    
Final capping, closure and post-closure liability at the beginning of the period $ 860,123  
Liability adjustments (37,482)  
Accretion expense associated with landfill obligations 35,793 $ 22,768
Closure payments (223,380)  
Foreign currency translation adjustment 2,918  
Final capping, closure and post-closure liability at the end of the period $ 712,936