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Landfill Accounting - Liability Adjustments and Restricted Cash and Investments (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Landfill Accounting [Line Items] |  |
Liability adjustments | $ 7,510 |
Restricted cash | 123,243 | $ 105,639
Restricted investments | 79,455 | 70,350
Landfill |  |
Landfill Accounting [Line Items] |  |
Restricted cash | 10,736 | 12,381
Restricted investments | $ 76,420 | $ 59,551

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