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Accrued Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Payables and Accruals [Abstract] |  |
Accrued alternative fuels incentives | $ 36,137 | $ 32,798
Accrued employee benefits | 4,075 | 5,100
Accrued gas and equipment purchases | 15,857 | 19,240
Accrued interest | 1,438 | 1,438
Accrued property and other taxes | 6,587 | 6,374
Accrued salaries and wages | 5,724 | 13,767
Accrued customer rebates | 4,958 | 4,822
Other | 11,851 | 12,567
Total accrued liabilities | $ 86,627 | $ 96,106

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