v3.25.2
ACCRUED FINAL CAPPING, CLOSURE AND POST-CLOSURE COSTS (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Beginning balance $ 172,230 $ 133,904
Obligations incurred 3,834 3,354
Accretion expense 7,316 5,733
Obligations settled (1,917) (2,223)
Ending balance $ 181,463 $ 140,768