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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2026 | Mar. 31, 2025
Disaggregation of Revenue [Line Items] |  |
Total revenue | $ 117,556 | $ 103,764
Contra revenue charge | 10,107 | 17,338
Facility use fee | 2,800 |
Fuel Sales |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 79,568 | 76,292
Contra revenue charge | 7,500 |
RIN Credits |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 10,122 | 5,202
LCFS Credits |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 4,327 | 3,799
AFTC |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | (17)
Total volume-related product revenue |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 94,633 | 84,719
Station construction sales |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 8,240 | 5,571
Total product revenue |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 102,873 | 90,290
Volume-related, O&M services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 14,212 | 12,790
Contra revenue charge | 2,600 |
Facility use fee | 2,800 |
Other services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 471 | 684
Total service revenue |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 14,683 | 13,474
Volume -Related |  |
Disaggregation of Revenue [Line Items] |  |
Gain (loss) due to changes in fair value | $ 616 | (557)
Contra revenue charge |  | $ 17,300

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