Reportable Segments and Geographic Information (Tables)

9 Months Ended

Sep. 30, 2022

Segment Reporting [Abstract]

Schedule of operating segments

	Three Months Ended September 30,						Nine Months Ended September 30,
	2022			2021			2022			2021
Revenues:
Renewable Power	$	49,247		$	11,351		$	69,335		$	33,672
RNG Fuel		38,682			20,106			98,157			55,009
Fuel Station Services		23,763			18,383			56,448			35,560
Other(1)		166			6			293			55
Intersegment		(3,150	)		(2,662	)		(8,172	)		(5,147	)
Equity Method Investment(s)		(42,158	)		—			(47,247	)		(14,181	)
	$	66,550		$	47,184		$	168,814		$	104,968

	Three Months Ended September 30,						Nine Months Ended September 30,
	2022			2021			2022			2021
Interest and Financing Expense, Net:
Renewable Power	$	(1,440	)	$	(1,043	)	$	(3,559	)	$	(3,113	)
RNG Fuel		(189	)		—			(240	)		(24	)
Corporate		853			(1,311	)		(3,385	)		(2,522	)
	$	(776	)	$	(2,354	)	$	(7,184	)	$	(5,659	)

	Three Months Ended September 30,					Nine Months Ended September 30,
	2022			2021		2022			2021
Depreciation, Amortization, and Accretion:
Renewable Power	$	1,176		$	1,268	$	4,283		$	3,735
RNG Fuel		2,621			1,206		6,379			3,584
Fuel Station Services		129			107		331			316
Other(1)		31			32		95			96
Equity Method Investment(s)		(699	)		—		(1,272	)		(1,059	)
	$	3,258		$	2,613	$	9,816		$	6,672

	Three Months Ended September 30,						Nine Months Ended September 30,
	2022			2021			2022			2021
Net income: (loss)
Renewable Power	$	1,098		$	(1,676	)	$	(1,071	)	$	(6,526	)
RNG Fuel		12,137			8,233			25,779			12,743
Fuel Station Services		2,109			2,807			5,523			5,488
Corporate		(13,669	)		(8,591	)		(33,329	)		4,853
Equity Method Investment(s)		3,694			—			3,658			2,392
	$	5,369		$	773		$	560		$	18,950

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Cash paid for Purchases of Property, Plant, and Equipment:
Renewable Power	$	500	$	—	$	1,800	$	—
Fuel Station Services		3,353		10,519		6,653		10,519
RNG Fuel		25,937		18,452		76,496		52,874
	$	29,790	$	28,971	$	84,949	$	63,393

	September 30, 2022		December 31, 2021
Total Assets:
Renewable Power	$	42,654	$	43,728
RNG Fuel		387,434		215,512
Fuel Station Services		56,372		56,567
Corporate and other		120,888		17,887
Equity Method Investment(s)		48,708		47,150
	$	656,056	$	380,844