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Net Income (Loss) Per Share (Tables) | 9 Months Ended
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Sep. 30, 2025
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 income (loss) per share for the three and nine months ended September 30, 2024 and 2025 (in thousands except share and per share amounts): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended | ​ | Nine Months Ended
​ |  | September 30, | ​ | September 30,
​ | ​ | 2024 |  | 2025 |  | 2024 |  | 2025
Net loss attributable to Clean Energy Fuels Corp. | ​ | $ | (18,175) | ​ | $ | (23,819) | ​ | $ | (52,911) | ​ | $ | (179,026)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding | ​ |  | 223,428,900 |  | ​ | 219,290,040 |  | ​ | 223,310,150 |  | ​ | 221,103,270
Dilutive effect of potential common shares from restricted stock units, stock options and stock warrants | ​ |  | — |  | ​ | — |  | ​ | — |  | ​ | —
Weighted-average common shares outstanding - diluted | ​ |  | 223,428,900 |  | ​ | 219,290,040 |  | ​ | 223,310,150 |  | ​ | 221,103,270
Basic and diluted loss per share | ​ | $ | (0.08) | ​ | $ | (0.11) | ​ | $ | (0.24) | ​ | $ | (0.81)
Schedule of potentially dilutive securities that have been excluded from the diluted net loss per share calculations because their effect would have been antidilutive | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended | ​ | Nine Months Ended
​ |  | September 30, | ​ | September 30,
​ | ​ | 2024 |  | 2025 |  | 2024 |  | 2025
Stock options | ​ | ​ | 20,373,438 | ​ | ​ | 19,395,453 | ​ | ​ | 20,373,438 | ​ | ​ | 19,395,453
Stonepeak warrant shares | ​ | ​ | 20,021,970 | ​ | ​ | 20,050,618 | ​ | ​ | 20,021,970 | ​ | ​ | 20,050,618
Restricted stock units | ​ | ​ | 1,955,950 | ​ | ​ | 4,361,878 | ​ | ​ | 1,955,950 | ​ | ​ | 4,361,878
Amazon warrant shares | ​ | ​ | 58,767,714 | ​ | ​ | 58,767,714 | ​ | ​ | 58,767,714 | ​ | ​ | 58,767,714
Total | ​ | ​ | 101,119,072 | ​ | ​ | 102,575,663 | ​ | ​ | 101,119,072 | ​ | ​ | 102,575,663
​

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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