CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Total revenue	$ 97,224	$ 480	$ 180,721	$ 77,623
Cost of sales (exclusive of depreciation and amortization shown separately below):
Selling, general and administrative	26,481	21,606	54,408	43,047
Depreciation and amortization	10,556	11,381	21,946	23,116
Total operating expenses	109,097	79,898	212,651	163,475
Operating loss	(11,873)	(79,418)	(31,930)	(85,852)
Interest expense	(732)	(1,002)	(3,809)	(2,438)
Interest income	490	240	754	494
Other income, net	14	166	34	844
Income (loss) from equity method investments	(1,193)	121	(2,870)	(305)
Loss before income taxes	(13,294)	(79,893)	(37,821)	(87,257)
Income tax expense	(68)	(56)	(117)	(139)
Net loss	(13,362)	(79,949)	(37,938)	(87,396)
Loss attributable to noncontrolling interest	127	282	512	560
Net loss attributable to Clean Energy Fuels Corp.	$ (13,235)	$ (79,667)	$ (37,426)	$ (86,836)
Net loss attributable to Clean Energy Fuels Corp. per share:
Basic (in dollars per share)	$ (0.06)	$ (0.38)	$ (0.17)	$ (0.43)
Diluted (in dollars per share)	$ (0.06)	$ (0.38)	$ (0.17)	$ (0.43)
Weighted-average common shares outstanding:
Basic (in shares)	222,433,900	207,047,221	222,496,426	203,043,580
Diluted (in shares)	222,433,900	207,047,221	222,496,426	203,043,580
Product revenue
Revenue:
Total revenue	$ 85,853	$ (8,965)	$ 158,360	$ 58,727
Cost of sales (exclusive of depreciation and amortization shown separately below):
Cost of sales	65,933	41,294	123,548	86,102
Service revenue
Revenue:
Total revenue	11,371	9,445	22,361	18,896
Cost of sales (exclusive of depreciation and amortization shown separately below):
Cost of sales	$ 6,127	$ 5,617	$ 12,749	$ 11,210