Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule of information required to compute basic and diluted net loss per share

The following table sets forth the computations of basic and diluted earnings (loss) per share for the three and six months ended June 30, 2019 and 2020 (in thousands except share and per share amounts):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2020		2019		2020
Net loss attributable to Clean Energy Fuels Corp.	$	(5,383)	$	(6,736)	$	(16,329)	$	(5,032)
Weighted-average common shares outstanding		204,653,723		200,670,137		204,426,459		202,831,346
Dilutive effect of potential common shares from restricted stock units and stock options		—		—		—		—
Weighted-average common shares outstanding - diluted		204,653,723		200,670,137		204,426,459		202,831,346
Basic and diluted loss per share	$	(0.03)	$	(0.03)	$	(0.08)	$	(0.02)

Schedule of potentially dilutive securities that have been excluded from the diluted net loss per share calculations because their effect would have been antidilutive

The following potentially dilutive securities have been excluded from the diluted net income (loss) per share calculations because their effect would have been antidilutive. Although these securities were antidilutive for these periods, they could be dilutive in future periods.

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2019	2020	2019	2020
Stock options	10,192,762	9,654,436	10,192,762	9,654,436
Convertible notes	3,164,557	1,311,031	3,164,557	2,237,794
Restricted stock units	1,289,751	1,007,929	1,289,751	1,007,929
Total	14,647,070	11,973,396	14,647,070	12,900,159