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COMMITMENTS AND CONTINGENCIES (Tables)
 9 Months Ended
Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]  
Summary of Environmental Liability A summary of the changes to the aggregate environmental remediation liabilities for the nine months ended September 30, 2023 and 2022 follows:
Nine Months Ended
September 30,
20232022
Beginning balance$6,335 $5,887 
Accretion expense75 79 
Obligations incurred (1)
— 759 
Obligations settled (2)
(338)(353)
Ending balance6,072 6,372 
Less: current portion1,799 646 
Long-term portion$4,273 $5,726 
(1)Associated with the investigation of potential remediation at an inactive waste disposal site that adjoins one of the landfills that we operate.
(2)May include amounts that are being processed through accounts payable as a part of our disbursement cycle.
Schedule of Cash and Cash Equivalents Beginning-of-period and end-of-period cash, cash equivalents and restricted cash s presented in the statement of cash flows is reconciled as follows:
September 30,
2023		December 31,
2022
Cash and cash equivalents$219,089 $71,152 
Restricted cash - non-current2,730 — 
Cash, cash equivalents and restricted cash$221,819 $71,152 
Schedule of Restricted Cash Beginning-of-period and end-of-period cash, cash equivalents and restricted cash s presented in the statement of cash flows is reconciled as follows:
September 30,
2023		December 31,
2022
Cash and cash equivalents$219,089 $71,152 
Restricted cash - non-current2,730 — 
Cash, cash equivalents and restricted cash$221,819 $71,152