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Landfill Accounting (Tables) | 6 Months Ended
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Jun. 30, 2026
Landfill Accounting [Abstract] |
Reconciliation of Final Capping, Closure and Post-Closure Liability Balance | The following is a reconciliation of the Company’s final capping, closure and post-closure liability balance from December 31, 2025 to June 30, 2026: ​
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Final capping, closure and post-closure liability at December 31, 2025 | ​ ​ ​ | $ | 651,586
Liability adjustments | ​ |  | 173,502
Accretion expense | ​ |  | 20,546
Closure payments | ​ |  | (137,199)
Assumption of closure liabilities from acquisitions | ​ | ​ | 3,586
Foreign currency translation adjustment | ​ |  | (3,003)
Final capping, closure and post-closure liability at June 30, 2026 | ​ | $ | 709,018

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
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