$CLNE
Clean Energy Fuels Corp. Stock $clne

$clne Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000155837021002638 Filed on March 09, 2021

Income Statement

Concept	2019 Q4	2018 Q4	2018
Revenue	$119.6M	$96.20M	$346.4M
YoY Change	24.32%	7.73%	1.41%
Cost Of Revenue	$55.70M	$59.70M	$212.9M
YoY Change	-6.7%	-7.15%	710.8%
Gross Profit	$63.90M	$36.60M	$133.5M
YoY Change	74.59%	46.4%	-57.66%
Gross Profit Margin	53.43%	38.05%	38.54%
Selling, General & Admin	$19.40M	$20.10M	$77.21M
YoY Change	-3.48%	-15.55%	-19.34%
% of Gross Profit	30.36%	54.92%	57.83%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$12.30M	$12.35M	$51.85M
YoY Change	-0.4%	-3.89%	-8.41%
% of Gross Profit	19.25%	33.74%	38.84%
Operating Expenses	$31.70M	$32.50M	$77.21M
YoY Change	-2.46%	-11.2%	-19.34%
Operating Profit	$32.20M	$4.100M	$3.895M
YoY Change	685.37%	-135.34%	-102.9%
Interest Expense	$1.200M	-$2.600M	-$17.50M
YoY Change	-146.15%	-75.0%	-23.58%
% of Operating Profit	3.73%	-63.41%	-449.29%
Other Income/Expense, Net	-$900.0K	-$400.0K	-$566.0K
YoY Change	125.0%	-300.0%	-507.19%
Pretax Income	$39.90M	$5.800M	-$8.842M
YoY Change	587.93%	-120.42%	-89.39%
Income Tax	$700.0K	$100.0K	$341.0K
% Of Pretax Income	1.75%	1.72%
Net Earnings	$41.10M	$6.900M	-$3.790M
YoY Change	495.65%	-124.38%	-95.34%
Net Earnings / Revenue	34.36%	7.17%	-1.09%
Basic Earnings Per Share			-$0.02
Diluted Earnings Per Share	$195.3K	$33.86K	-$0.02
COMMON SHARES
Basic Shares Outstanding	204.7M shares	203.5M shares	180.7M
Diluted Shares Outstanding			180.7M

Balance Sheet

Concept	2019 Q4	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments	$106.1M	$95.49M	$95.50M
YoY Change	11.15%	-46.22%	-46.2%
Cash & Equivalents	$49.21M	$29.84M	$29.80M
Short-Term Investments	$56.93M	$65.65M	$65.60M
Other Short-Term Assets	$11.10M	$9.900M	$10.10M
YoY Change	12.12%	11.24%	13.48%
Inventory	$29.87M	$34.98M	$35.00M
Prepaid Expenses
Receivables	$61.76M	$68.87M	$75.80M
Other Receivables	$84.90M	$15.54M	$9.300M
Total Short-Term Assets	$293.8M	$225.6M	$225.6M
YoY Change	30.22%	-26.01%	-26.01%
LONG-TERM ASSETS
Property, Plant & Equipment	$323.9M	$350.6M	$350.6M
YoY Change	-7.6%	-4.56%	-4.55%
Goodwill	$64.33M	$64.33M
YoY Change	0.0%	0.0%
Intangibles	$1.229M	$2.207M
YoY Change	-44.31%	-38.52%
Long-Term Investments	$26.30M	$26.08M	$26.10M
YoY Change	0.85%	-14.2%	-14.14%
Other Assets	$7.300M	$12.80M	$12.80M
YoY Change	-42.97%
Total Long-Term Assets	$483.3M	$473.5M	$473.5M
YoY Change	2.07%	-2.78%	-2.77%
TOTAL ASSETS
Total Short-Term Assets	$293.8M	$225.6M	$225.6M
Total Long-Term Assets	$483.3M	$473.5M	$473.5M
Total Assets	$777.1M	$699.1M	$699.1M
YoY Change	11.16%	-11.72%	-11.72%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$27.38M	$19.02M	$19.00M
YoY Change	43.9%	6.27%	6.15%
Accrued Expenses	$67.70M	$48.47M	$48.50M
YoY Change	39.67%	14.67%	70.18%
Deferred Revenue	$5.329M	$5.513M
YoY Change	-3.34%	60.64%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$56.01M	$4.712M	$5.400M
YoY Change	1088.73%	-96.63%	-96.13%
Total Short-Term Liabilities	$162.6M	$80.26M	$80.30M
YoY Change	102.55%	-60.52%	-60.5%
LONG-TERM LIABILITIES
Long-Term Debt	$32.87M	$75.00M	$78.80M
YoY Change	-56.17%	-37.71%	-34.55%
Other Long-Term Liabilities	$9.701M	$15.04M	$15.00M
YoY Change	-35.48%	-19.02%	-19.35%
Total Long-Term Liabilities	$42.57M	$90.04M	$93.80M
YoY Change	-52.72%	384.96%	-32.52%
TOTAL LIABILITIES
Total Short-Term Liabilities	$162.6M	$80.26M	$80.30M
Total Long-Term Liabilities	$42.57M	$90.04M	$93.80M
Total Liabilities	$234.1M	$174.1M	$191.1M
YoY Change	34.46%	-49.14%	-47.63%
SHAREHOLDERS EQUITY
Retained Earnings	-$668.2M	-$688.7M
YoY Change	-2.97%	0.74%
Common Stock	$1.203B	$1.199B
YoY Change	0.37%	7.86%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$533.4M	$508.0M	$508.0M
YoY Change
Total Liabilities & Shareholders Equity	$777.1M	$699.1M	$699.1M
YoY Change	11.16%	-11.72%	-11.72%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	$41.10M	$6.900M	-$3.790M
YoY Change	495.65%	-124.38%	-95.34%
Depreciation, Depletion And Amortization	$12.30M	$12.35M	$51.85M
YoY Change	-0.4%	-3.89%	-8.41%
Cash From Operating Activities	$7.680M	$8.980M	$37.98M
YoY Change	-14.48%	-1086.81%	-979.82%
INVESTING ACTIVITIES
Capital Expenditures	-$14.84M	-$11.05M	$25.26M
YoY Change	34.3%	25.85%	-30.42%
Acquisitions			$0.00
YoY Change
Other Investing Activities	$13.86M	$31.16M	$79.63M
YoY Change	-55.52%	-4044.3%	3.43%
Cash From Investing Activities	-$980.0K	$20.10M	$54.37M
YoY Change	-104.88%	-309.81%	33.64%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	8.810M	-154.8M	-95.21M
YoY Change	-105.69%	-19950.0%	120.58%
NET CHANGE
Cash From Operating Activities	7.680M	8.980M	37.98M
Cash From Investing Activities	-980.0K	20.10M	54.37M
Cash From Financing Activities	8.810M	-154.8M	-95.21M
Net Change In Cash	15.51M	-125.7M	-2.584M
YoY Change	-112.33%	1195.06%	-61.98%
FREE CASH FLOW
Cash From Operating Activities	$7.680M	$8.980M	$37.98M
Capital Expenditures	-$14.84M	-$11.05M	$25.26M
Free Cash Flow	$22.52M	$20.03M	$12.72M
YoY Change	12.43%	154.51%	-131.31%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OperatingLeaseLiabilityCurrent
CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:FinanceLeaseLiabilityCurrent
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:FinanceLeaseLiabilityNoncurrent
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:OperatingLeaseRightOfUseAsset
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2019Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:FinanceLeaseLiabilityCurrent
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:OperatingLeaseLiabilityNoncurrent
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001368265
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2019Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0
CY2020Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	0
CY2020	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	0
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	198491204
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	204723055
CY2019	us-gaap	Fair Value Liability Recurring Basis Still Held Unrealized Gain Loss Statement Of Income Extensible List FairValueLiabilityRecurringBasisStillHeldUnrealizedGainLossStatementOfIncomeExtensibleList	us-gaap:UnrealizedGainLossOnCommodityContracts
CY2020	us-gaap	Fair Value Liability Recurring Basis Still Held Unrealized Gain Loss Statement Of Income Extensible List FairValueLiabilityRecurringBasisStillHeldUnrealizedGainLossStatementOfIncomeExtensibleList	us-gaap:UnrealizedGainLossOnCommodityContracts
CY2019	us-gaap	Fair Value Asset Recurring Basis Still Held Unrealized Gain Loss Statement Of Income Extensible List FairValueAssetRecurringBasisStillHeldUnrealizedGainLossStatementOfIncomeExtensibleList	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
CY2020	us-gaap	Fair Value Asset Recurring Basis Still Held Unrealized Gain Loss Statement Of Income Extensible List FairValueAssetRecurringBasisStillHeldUnrealizedGainLossStatementOfIncomeExtensibleList	us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:FinanceLeaseLiabilityNoncurrent
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:OperatingLeaseRightOfUseAsset
CY2019Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OperatingLeaseLiabilityCurrent
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:OperatingLeaseLiabilityNoncurrent
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	001-33480
CY2020	dei	Entity Registrant Name EntityRegistrantName	CLEAN ENERGY FUELS CORP.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	33-0968580
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	4675 MacArthur Court, Suite 800
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Newport Beach
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	92660
CY2020	dei	City Area Code CityAreaCode	949
CY2020	dei	Local Phone Number LocalPhoneNumber	437-1000
CY2020	dei	Security12b Title Security12bTitle	Common stock
CY2020	dei	Trading Symbol TradingSymbol	CLNE
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Public Float EntityPublicFloat	320768899
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CY2019Q4	clne	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Current CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsCurrent	49222000
CY2020Q4	clne	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Current CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsCurrent	108977000
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	56929000
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	29528000
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2412000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1335000
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CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	61784000
CY2019Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	84898000
CY2020Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	23655000
CY2019Q4	us-gaap	Inventory Net InventoryNet	29874000
CY2020Q4	us-gaap	Inventory Net InventoryNet	28100000
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	11109000
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	9404000
CY2020Q4	clne	Derivative Asset Current Related Party DerivativeAssetCurrentRelatedParty	1591000
CY2019Q4	us-gaap	Assets Current AssetsCurrent	293792000
CY2020Q4	us-gaap	Assets Current AssetsCurrent	263039000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	28627000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	25967000
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	323912000
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	290911000
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	4000000
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CY2019Q4	clne	Notes Receivable And Other Long Term Assets Net NotesReceivableAndOtherLongTermAssetsNet	31622000
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CY2019Q4	clne	Derivative Asset Noncurrent Related Party DerivativeAssetNoncurrentRelatedParty	3270000
CY2020Q4	clne	Derivative Asset Noncurrent Related Party DerivativeAssetNoncurrentRelatedParty	4057000
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	26305000
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	27962000
CY2019Q4	us-gaap	Goodwill Goodwill	64328000
CY2020Q4	us-gaap	Goodwill Goodwill	64328000
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CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	464000
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CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	533408000
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CY2020	us-gaap	Costs And Expenses CostsAndExpenses	301568000
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	3895000
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	9928000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-9844000
CY2018	clne	Interest Expense Nonoperating InterestExpenseNonoperating	15924000
CY2019	clne	Interest Expense Nonoperating InterestExpenseNonoperating	7574000
CY2020	clne	Interest Expense Nonoperating InterestExpenseNonoperating	7348000
CY2020	clne	Interest Income Nonoperating InterestIncomeNonoperating	1345000
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-566000
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1990000
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3025000
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2723000
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-119000
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-161000
CY2018	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	4782000
CY2019	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	7455000
CY2020	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	1063000
CY2018	clne	Gain Loss On Contribution Of Subsidiary To Joint Venture GainLossOnContributionOfSubsidiaryToJointVenture	-1163000
CY2020	clne	Gain Loss On Contribution Of Subsidiary To Joint Venture GainLossOnContributionOfSubsidiaryToJointVenture	700000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-8842000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14117000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11220000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	341000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	858000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	309000
CY2018	us-gaap	Profit Loss ProfitLoss	-9183000
CY2019	us-gaap	Profit Loss ProfitLoss	13259000
CY2020	us-gaap	Profit Loss ProfitLoss	-11529000
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-5393000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-7162000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1665000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-3790000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	20421000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-9864000
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	180655435
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	204573287
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	200657912
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	180655435
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	205987509
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	200657912
CY2018	us-gaap	Profit Loss ProfitLoss	-9183000
CY2019	us-gaap	Profit Loss ProfitLoss	13259000
CY2020	us-gaap	Profit Loss ProfitLoss	-11529000
CY2018	clne	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Excluding Intra Entity Investments Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentExcludingIntraEntityInvestmentsTax	0
CY2019	clne	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Excluding Intra Entity Investments Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentExcludingIntraEntityInvestmentsTax	0
CY2020	clne	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Excluding Intra Entity Investments Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentExcludingIntraEntityInvestmentsTax	0
CY2018	clne	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Excluding Intra Entity Investments Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentExcludingIntraEntityInvestmentsNetOfTax	-1305000
CY2019	clne	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Excluding Intra Entity Investments Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentExcludingIntraEntityInvestmentsNetOfTax	505000
CY2020	clne	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Excluding Intra Entity Investments Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentExcludingIntraEntityInvestmentsNetOfTax	1355000
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	0
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	0
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	0
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	54000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	67000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1251000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	572000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1357000
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-10434000
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	13831000
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-10172000
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	449658000
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	81771000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5307000
CY2018	us-gaap	Profit Loss ProfitLoss	-9183000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1251000
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	525009000
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	309000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3880000
CY2019	us-gaap	Profit Loss ProfitLoss	13259000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	572000
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	543029000
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1683000
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	14647000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2957000
CY2020	us-gaap	Profit Loss ProfitLoss	-11529000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1357000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	522850000
CY2018	us-gaap	Profit Loss ProfitLoss	-9183000
CY2019	us-gaap	Profit Loss ProfitLoss	13259000
CY2020	us-gaap	Profit Loss ProfitLoss	-11529000
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	51850000
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49625000
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	47682000
CY2018	clne	Provision For Doubtful Accounts Notes And Inventory ProvisionForDoubtfulAccountsNotesAndInventory	1857000
CY2019	clne	Provision For Doubtful Accounts Notes And Inventory ProvisionForDoubtfulAccountsNotesAndInventory	2586000
CY2020	clne	Provision For Doubtful Accounts Notes And Inventory ProvisionForDoubtfulAccountsNotesAndInventory	2662000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	5307000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	3880000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	2957000
CY2018	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	9788000
CY2019	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-5545000
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	2175000
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	-1220000
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	-728000
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	-46000
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-2554000
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2536000
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2875000
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1249000
CY2018	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	4782000
CY2019	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	7455000
CY2020	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	1063000
CY2018	clne	Equity Method Investment Material Effects Of Commitments EquityMethodInvestmentMaterialEffectsOfCommitments	-1163000
CY2020	clne	Equity Method Investment Material Effects Of Commitments EquityMethodInvestmentMaterialEffectsOfCommitments	700000
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2723000
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-119000
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-161000
CY2019	clne	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	3234000
CY2020	clne	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	2756000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	738000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	120000
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	6360000
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	63408000
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-53784000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1065000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3439000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-108000
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1547000
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	16617000
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-5275000
CY2019	clne	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-3786000
CY2020	clne	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-3141000
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	679000
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	9316000
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-9337000
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	30000
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-3528000
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-10976000
CY2018	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	2670000
CY2019	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	18596000
CY2020	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-13871000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	37982000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	12279000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	61041000
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	348091000
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	171080000
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	74292000
CY2018	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	425804000
CY2019	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	180704000
CY2020	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	101850000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	25263000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	27088000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13273000
CY2020	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	535000
CY2018	clne	Proceeds From Collection And Sale Of Loans Receivable ProceedsFromCollectionAndSaleOfLoansReceivable	518000
CY2019	clne	Proceeds From Collection And Sale Of Loans Receivable ProceedsFromCollectionAndSaleOfLoansReceivable	608000
CY2020	clne	Proceeds From Collection And Sale Of Loans Receivable ProceedsFromCollectionAndSaleOfLoansReceivable	1567000
CY2018	clne	Cash Received Net Of Transferred Cash From Sale Of Subsidiary CashReceivedNetOfTransferredCashFromSaleOfSubsidiary	871000
CY2019	clne	Cash Received Net Of Transferred Cash From Sale Of Subsidiary CashReceivedNetOfTransferredCashFromSaleOfSubsidiary	7582000
CY2020	clne	Cash Received Net Of Transferred Cash From Sale Of Subsidiary CashReceivedNetOfTransferredCashFromSaleOfSubsidiary	4830000
CY2020	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	650000
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	530000
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	7772000
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	4673000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	54369000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1502000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	24170000
CY2018	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	83438000
CY2019	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	309000
CY2020	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	1683000
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	14647000
CY2018	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	909000
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	95000
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	123000
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	131000
CY2018	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	17243000
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	15294000
CY2020	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	65860000
CY2018	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	194886000
CY2019	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	7795000
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	70399000
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	1023000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-95209000
CY2018	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	244000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	7685000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18657000
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	274000
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	136000
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	201000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2584000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	18598000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	66755000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	37208000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34624000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53222000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34624000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53222000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	119977000
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	257000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	36000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8000
CY2019	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	441000
CY2020	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	57000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	16751000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	6788000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	5622000
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;font-weight:bold;text-align:justify;margin:0pt 0pt 12pt 0pt;"> Use of Estimates</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:18pt;margin:0pt 0pt 12pt 0pt;">The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the accompanying consolidated financial statements and these notes. Actual results could differ from those estimates and may result in material effects on the Company’s operating results and financial position. Significant estimates made in preparing the accompanying consolidated financial statements include (but are not limited to) those related to revenue recognition, fair value measurements, goodwill and long-lived asset valuations and impairment assessments, income tax valuations and stock-based compensation expense.</p>
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	29874000
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	28100000
CY2019Q4	us-gaap	Inventory Net InventoryNet	29874000
CY2020Q4	us-gaap	Inventory Net InventoryNet	28100000
CY2018	us-gaap	Amount Of Regulatory Assistance Received1 AmountOfRegulatoryAssistanceReceived1	700000
CY2019	us-gaap	Amount Of Regulatory Assistance Received1 AmountOfRegulatoryAssistanceReceived1	1600000
CY2020	us-gaap	Amount Of Regulatory Assistance Received1 AmountOfRegulatoryAssistanceReceived1	0.0
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6600000
CY2018	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0
CY2019	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0
CY2020	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	13320000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	13320000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	12091000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	12856000
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1229000
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	464000
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1400000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1000000.0
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	800000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	500000
CY2018Q4	us-gaap	Goodwill Goodwill	64328000
CY2019Q4	us-gaap	Goodwill Goodwill	64328000
CY2020Q4	us-gaap	Goodwill Goodwill	64328000
CY2019	clne	Volumetric Excise Tax Credit Cng VolumetricExciseTaxCreditCNG	0.50
CY2020	clne	Volumetric Excise Tax Credit Cng VolumetricExciseTaxCreditCNG	0.50
CY2018	clne	Volumetric Excise Tax Credit Lng VolumetricExciseTaxCreditLNG	0.50
CY2019	clne	Volumetric Excise Tax Credit Lng VolumetricExciseTaxCreditLNG	0.50
CY2020	clne	Volumetric Excise Tax Credit Lng VolumetricExciseTaxCreditLNG	0.50
CY2019	clne	Volumetric Excise Tax Credit VolumetricExciseTaxCredit	47100000
CY2018	clne	Volumetric Excise Tax Credit VolumetricExciseTaxCredit	25200000
CY2018	clne	Volumetric Excise Tax Credit Prior Years VolumetricExciseTaxCreditPriorYears	1500000
CY2018	clne	Volumetric Excise Tax Credit Cng VolumetricExciseTaxCreditCNG	0.50
CY2018	us-gaap	Advertising Expense AdvertisingExpense	900000
CY2019	us-gaap	Advertising Expense AdvertisingExpense	1200000
CY2020	us-gaap	Advertising Expense AdvertisingExpense	0.0
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	0.0
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	0.0
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	0.0
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;font-weight:bold;text-align:justify;margin:0pt 0pt 12pt 0pt;">Concentration of Credit Risk</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:18pt;margin:0pt 0pt 12pt 0pt;">Credit is extended to all customers based on financial condition, and collateral is generally not required. Concentrations of credit risk with respect to trade receivables are limited because of the large number of customers comprising the Company’s customer base and dispersion across many different industries and geographies. Certain international customers, however, have historically been slower to pay on trade receivables. Accordingly, the Company continually monitors collections and payments from its customers and maintains a provision for estimated credit losses based upon its historical experience and any specific customer collection issues that it has identified. Although credit losses have historically been within the Company’s expectations and the provisions established, the Company cannot guarantee that it will continue to experience the same credit loss rates that it has in the past.</p>
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	346419000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	344065000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	291724000
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	13000000.0
CY2019Q4	us-gaap	Capitalized Contract Cost Gross CapitalizedContractCostGross	10200000
CY2020Q4	us-gaap	Capitalized Contract Cost Gross CapitalizedContractCostGross	10400000
CY2019Q4	clne	Capitalized Contract Cost Accumulated Depreciation CapitalizedContractCostAccumulatedDepreciation	6300000
CY2020Q4	clne	Capitalized Contract Cost Accumulated Depreciation CapitalizedContractCostAccumulatedDepreciation	7100000
CY2019	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	2200000
CY2020	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	800000
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	61760000
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	61784000
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	455000
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	729000
CY2019Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	3777000
CY2020Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	3998000
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	4232000
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	4727000
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5329000
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1638000
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	6339000
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	59000
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	11668000
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1697000
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	5900000
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	4800000
CY2018Q1	us-gaap	Sale Of Stock Percentage Of Ownership Before Transaction SaleOfStockPercentageOfOwnershipBeforeTransaction	0.533
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	49207000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	108977000
CY2019Q4	clne	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Current CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsCurrent	49222000
CY2020Q4	clne	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Current CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsCurrent	108977000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	4000000
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	11000000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53222000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	119977000
CY2019Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	47900000
CY2020Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	107600000
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	56932000
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	56929000
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	29528000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	29528000
CY2020	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	2500000
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3000000.0
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1700000
CY2019Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0
CY2020Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0
CY2019Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	84898000
CY2020Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	23655000
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	678904000
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	685356000
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	354992000
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	394445000
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	323912000
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	290911000
CY2019Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	30400000
CY2020Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	32300000
CY2019Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	26300000
CY2020Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	28800000
CY2018	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	3700000
CY2019	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	3900000
CY2019Q4	clne	Accrued Alternative Fuel Incentives Current AccruedAlternativeFuelIncentivesCurrent	27839000
CY2020Q4	clne	Accrued Alternative Fuel Incentives Current AccruedAlternativeFuelIncentivesCurrent	18175000
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	2276000
CY2020Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	4282000
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	220000
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	512000
CY2019Q4	clne	Accrued Gas And Equipment Purchase Current AccruedGasAndEquipmentPurchaseCurrent	11383000
CY2020Q4	clne	Accrued Gas And Equipment Purchase Current AccruedGasAndEquipmentPurchaseCurrent	9897000
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3732000
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3094000
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	9105000
CY2020Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	7646000
CY2019Q4	us-gaap	Embedded Derivative Fair Value Of Embedded Derivative Liability EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability	42000
CY2020Q4	us-gaap	Embedded Derivative Fair Value Of Embedded Derivative Liability EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability	283000
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	13100000
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	8748000
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	67697000
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	52637000
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	89094000
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	209000
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	88885000
CY2019Q4	clne	Debt Instrument Carrying Amount Current DebtInstrumentCarryingAmountCurrent	56097000
CY2019Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	84000
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	56013000
CY2019Q4	clne	Debt Instrument Carrying Amount Noncurrent DebtInstrumentCarryingAmountNoncurrent	32997000
CY2019Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	125000
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	32872000
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	85797000
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	117000
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	85680000
CY2020Q4	clne	Debt Instrument Carrying Amount Current DebtInstrumentCarryingAmountCurrent	3631000
CY2020Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	39000
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	3592000
CY2020Q4	clne	Debt Instrument Carrying Amount Noncurrent DebtInstrumentCarryingAmountNoncurrent	82166000
CY2020Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	78000
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	82088000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	3631000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	53803000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	9238000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	9423000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1397000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	8305000
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	85797000
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	14600000
CY2020Q4	clne	Capital Stock Number Of Authorized Classes CapitalStockNumberOfAuthorizedClasses	2
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020Q4	clne	Shares Authorized SharesAuthorized	305000000
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	304000000
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000
CY2020Q4	clne	Common Stock Voting Rights Per Share CommonStockVotingRightsPerShare	1
CY2020Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	30000000.0
CY2020	clne	Stock Repurchase Program Repurchased Amount StockRepurchaseProgramRepurchasedAmount	14500000
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	7744386
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	5307000
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	3880000
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	2957000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-1857000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-9153000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	14981000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-11216000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	311000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-864000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-4000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-8842000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14117000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11220000
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	341000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	116000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	80000
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4000
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	109000
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	341000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	120000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	189000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	293000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	48000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	445000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	72000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	738000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	120000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	341000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	858000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	309000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2964000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2356000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	5674000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	3087000
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2775000
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-56000
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	245000
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-144000
CY2018	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	-2080000
CY2019	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	-3745000
CY2020	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	5059000
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	6603000
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	10314000
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	4037000
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	985000
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	665000
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1559000
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	118000
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	466000
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	7571000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	341000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	858000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	309000
CY2018	clne	Federal Tax Benefit On Extension Of Alternative Fuel Credit For Current Period Fuel Sales FederalTaxBenefitOnExtensionOfAlternativeFuelCreditForCurrentPeriodFuelSales	6100000
CY2019	clne	Federal Tax Benefit On Extension Of Alternative Fuel Credit For Current Period Fuel Sales FederalTaxBenefitOnExtensionOfAlternativeFuelCreditForCurrentPeriodFuelSales	10500000
CY2020	clne	Federal Tax Benefit On Extension Of Alternative Fuel Credit For Current Period Fuel Sales FederalTaxBenefitOnExtensionOfAlternativeFuelCreditForCurrentPeriodFuelSales	4200000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	4899000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	4940000
CY2019Q4	clne	Deferred Tax Assets Sale Type Lease DeferredTaxAssetsSaleTypeLease	7338000
CY2020Q4	clne	Deferred Tax Assets Sale Type Lease DeferredTaxAssetsSaleTypeLease	6938000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6651000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6233000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	9254000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	6648000
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1456000
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1545000
CY2020Q4	clne	Deferred Tax Assets Domestic Depreciation And Amortization DeferredTaxAssetsDomesticDepreciationAndAmortization	1635000
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	107722000
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	119708000
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	137320000
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	147647000
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	122147000
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	134974000
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	15173000
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	12673000
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	7338000
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	6788000
CY2019Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	998000
CY2020Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	1596000
CY2019Q4	clne	Deferred Tax Liabilities Domestic Depreciation And Amortization DeferredTaxLiabilitiesDomesticDepreciationAndAmortization	911000
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	1910000
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	2221000
CY2019Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	4754000
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	498000
CY2020Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	2926000
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	15911000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36243000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5232000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13531000
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	738000
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	858000
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	122100000
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	135000000.0
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	12800000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	45300000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41475000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2954000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	870000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	45299000
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0.0
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0.0
CY2018	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0.0
CY2019	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0.0
CY2020	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0.0
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	615000
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	840000
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	2715000
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	2552000
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	3330000
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	3392000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	28627000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	25967000
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3359000
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	733000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2822000
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	26206000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	23698000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	29565000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	26520000
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	189000
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	185000
CY2019	clne	Finance Lease Expense FinanceLeaseExpense	687000
CY2020	clne	Finance Lease Expense FinanceLeaseExpense	918000
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	6630000
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	6287000
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1950000
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	847000
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	2755000
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	2593000
CY2019	us-gaap	Sublease Income SubleaseIncome	206000
CY2020	us-gaap	Sublease Income SubleaseIncome	736000
CY2019	us-gaap	Lease Cost LeaseCost	11129000
CY2020	us-gaap	Lease Cost LeaseCost	8991000
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	189000
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	185000
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	5350000
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	5503000
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1667000
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1242000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	519000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	1337000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	31861000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	96000
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y5M26D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y7M2D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y1M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y9M21D
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0509
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0527
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0829
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0840
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	990000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4707000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	756000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3788000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	658000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3713000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	1062000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3704000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	314000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3560000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	21588000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	3780000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	41060000
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	388000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	14540000
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	3392000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	26520000
CY2019	us-gaap	Sales Type Lease Interest Income SalesTypeLeaseInterestIncome	100000
CY2020	us-gaap	Sales Type Lease Interest Income SalesTypeLeaseInterestIncome	500000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Next Twelve Months SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths	1402000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Two Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears	1182000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Three Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears	962000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Four Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears	962000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Five Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears	962000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Thereafter SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter	3358000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived	8828000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Undiscounted Excess Amount SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount	2349000
CY2020Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable SalesTypeAndDirectFinancingLeasesLeaseReceivable	6479000
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.90
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1500000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-3790000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	20421000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-9864000
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	180655435
CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	204573287
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	200657912
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1414222
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	180655435
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	205987509
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	200657912
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	346419000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	344065000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	291724000
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	3895000
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	9928000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-9844000
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	443182000
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	415774000
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	383665000

Files In Submission

Name	View Source	Status
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0001558370-21-002638-index.html	Edgar Link	pending
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$CLNE
Clean Energy Fuels Corp. Stock $clne

2019 Q4 Form 10-K Financial Statement

#000155837021002638 Filed on March 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLNE Clean Energy Fuels Corp. Stock $clne

2019 Q4 Form 10-K Financial Statement

#000155837021002638 Filed on March 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLNE
Clean Energy Fuels Corp. Stock $clne