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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, 2023
Jun. 30, 2022
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Beginning balance $ 113,678 $ 86,914
Obligations incurred 2,615 2,244
Revision in estimates 0 1,443
Accretion expense 4,809 3,799
Obligations settled (2,386) (2,027)
Ending balance $ 118,716 $ 92,373