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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contracts with Customers
Total revenue	$ 415,865	$ 425,159	$ 420,164
Contra revenue charge	60,764	60,609	24,302
Not Designated as Hedging Instrument | Commodity Swaps
Revenue from Contracts with Customers
Net settlement of commodity swap derivative instruments	2,400	4,900	7,800
Fuel Sales
Revenue from Contracts with Customers
Total revenue	258,858	286,956	281,103
RIN Credits
Revenue from Contracts with Customers
Total revenue	39,019	25,860	34,635
LCFS Credits
Revenue from Contracts with Customers
Total revenue	9,954	9,885	12,634
AFTC
Revenue from Contracts with Customers
Total revenue	23,817	20,854	21,760
LCFS Credits
Revenue from Contracts with Customers
Total revenue	331,517	343,397	350,649
Station construction sales
Revenue from Contracts with Customers
Total revenue	25,192	26,427	22,346
Product revenue
Revenue from Contracts with Customers
Total revenue	356,709	369,824	372,995
Volume-related, O&M services
Revenue from Contracts with Customers
Total revenue	56,886	52,660	45,901
Other services
Revenue from Contracts with Customers
Total revenue	2,270	2,675	1,268
Service revenue
Revenue from Contracts with Customers
Total revenue	59,156	55,335	47,169
Volume -Related
Revenue from Contracts with Customers
Gain (loss) due to changes in fair value	$ (131)	$ (158)	$ 517

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