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CLOSURE AND POST-CLOSURE LIABILITIES - Anticipated Payments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Environmental Property Sale, Disposal or Abandonment Costs |  |  |
2023 | $ 14,414 |  |
2024 | 14,733 |  |
2025 | 12,808 |  |
2026 | 8,369 |  |
2027 | 7,420 |  |
Thereafter | 290,366 |  |
Undiscounted closure and post-closure liabilities | 348,110 |  |
Less: Discount at credit-adjusted risk-free rate | (153,062) |  |
Less: Undiscounted estimated closure and post-closure liabilities relating to airspace not yet consumed | (76,247) |  |
Present value of closure and post-closure liabilities | $ 118,801 | $ 99,103 | $ 87,926

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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 25 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=116646717&loc=d3e6290-110844 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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