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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Revenue from Contracts with Customers |  |  |  |
Total revenue | $ 97,954 | $ 90,548 | $ 201,663 | $ 222,731
Contra revenue charge |  |  | 26,976 | 27,652
Not Designated as Hedging Instrument | Commodity swaps |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Net settlement of commodity swap derivative instruments | 900 | 1,400 | 2,400 | 1,000
Fuel Sales |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 57,398 | 53,267 | 125,601 | 160,162
RIN Credits |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 9,523 | 5,377 | 18,335 | 9,880
LCFS Credits |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 4,319 | 2,474 | 4,155 | 4,772
AFTC |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 6,003 | 5,059 | 11,360 | 9,555
Total volume-related product revenue |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 77,304 | 69,777 | 161,134 | 185,437
Station construction sales |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 5,656 | 5,852 | 11,240 | 9,919
Product revenue |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 82,960 | 75,629 | 172,374 | 195,356
Volume-related, O&M services |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 14,422 | 13,913 | 28,157 | 25,957
Other services |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 572 | 1,006 | 1,132 | 1,418
Service revenue |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Total revenue | 14,994 | 14,919 | 29,289 | 27,375
Volume-Related |  |  |  |
Revenue from Contracts with Customers |  |  |  |
Gain (loss) due to changes in fair value | 61 | 3,600 | 1,683 | 1,068
Contra revenue charge | $ 14,100 | $ 13,900 | $ 27,000 | $ 27,700

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