Landfill Accounting - Reserve Assumptions and Accretion Expense (Details) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Landfill Accounting [Line Items] | |||
| Accretion expense associated with landfill obligations | $ 20,546 | $ 23,886 | |
| Landfill | |||
| Landfill Accounting [Line Items] | |||
| Inflation rate for purposes of computing layers for final capping, closure and post-closure obligations | 2.75% | 2.75% | |
| Landfill | Measurement input, discount rate | |||
| Landfill Accounting [Line Items] | |||
| Discount rate for purposes of computing layers for final capping, closure and post-closure obligations | 5.50% | 5.50% | |