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ACCRUED FINAL CAPPING, CLOSURE AND POST CLOSURE - Summary of Changes to Accrued Capping, Closure and Post-Closure Liabilities (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Beginning balance $ 133,904 $ 113,678
Obligations incurred 3,354 2,615
Accretion expense 5,733 4,809
Obligations settled (2,223) (2,386)
Ending balance $ 140,768 $ 118,716