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Document and Entity Information
Feb. 24, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Feb. 24, 2025
Entity Registrant Name CLEAN ENERGY FUELS CORP.
Entity Incorporation, State or Country Code DE
Securities Act File Number 001-33480
Entity Tax Identification Number 33-0968580
Entity Address, Address Line One 4675 MacArthur Court
Entity Address, Address Line Two Suite 800
Entity Address, City or Town Newport Beach
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92660
City Area Code 949
Local Phone Number 437-1000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common stock, $0.0001 par value per share
Trading Symbol CLNE
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0001368265
Amendment Flag false