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COMMITMENTS AND CONTINGENCIES (Tables) | 9 Months Ended
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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,
| 2023 |  | 2022
Beginning balance | $ | 6,335 |  |  | $ | 5,887 |
Accretion expense | 75 |  |  | 79 |
Obligations incurred (1) | — |  |  | 759 |
Obligations settled (2) | (338) |  |  | (353) |
Ending balance | 6,072 |  |  | 6,372 |
Less: current portion | 1,799 |  |  | 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-current |  | 2,730 |  |  | — |  |  |  |  |
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-current |  | 2,730 |  |  | — |  |  |  |  |
Cash, cash equivalents and restricted cash |  | $ | 221,819 |  |  | $ | 71,152 |  |  |  |  |

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