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and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Environmental Processing Fees Environmental Processing Fees [Member] Environmental Processing Fees Property, Plant and Equipment [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Long-term debt, gross Debt outstanding Long-Term Debt, Gross Increase (Decrease) In Temporary Equity, Amount [Roll Forward] Increase (Decrease) In Temporary Equity, Amount [Roll Forward] Increase (Decrease) In Temporary Equity, Amount All Trading Arrangements All Trading Arrangements [Member] Supplier Concentration Risk Supplier Concentration Risk [Member] Less: accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization All Adjustments to Compensation All Adjustments to Compensation [Member] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Compensation Amount Outstanding Recovery Compensation Amount Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Total Assets Reconciliation of Assets from Segment to Consolidated [Table Text Block] Derivative assets Derivative Asset Forfeitures Weighted Average Grant Date Fair Value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Subsequent Event Type [Axis] Subsequent Event Type [Axis] Statement of Comprehensive Income [Abstract] Hillman Hillman [Member] Hillman MD Digester, LLC MD Digester, LLC [Member] MD Digester, LLC Lease liabilities, finance lease Finance Lease, Liability Forfeitures (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Contributions from redeemable preferred non-controlling interests Temporary Equity, Issuance Of Redeemable Preferred Noncontrolling Interest Temporary Equity, Issuance Of Redeemable Preferred Noncontrolling Interest Minimum consolidated debt to cash flow ratio during the delayed draw availability period Debt Instrument, Covenant, Debt To Cash Flow Ratio During Delayed Draw Availability Period, Minimum Debt Instrument, Covenant, Debt To Cash Flow Ratio During Delayed Draw Availability Period, Minimum Equity Method Investments Equity Method Investments [Policy Text Block] Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss Distributions received from equity method investment Proceeds from Equity Method Investment, Distribution, Return of Capital 2024 Long-Term Debt, Maturity, Year One Closing share price (in dollars per share) Share Price Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Changes in the Asset Retirement Obligation Schedule of Change in Asset Retirement Obligation [Table Text Block] Permanent Loan Permanent Loan [Member] Permanent Loan Lease liabilities for finance leases as of January 1, 2022 included in Other long-term liabilities Right-Of-Use Liabilities Obtained In Exchange For Finance Lease Liability, Noncurrent Right-Of-Use Liabilities Obtained In Exchange For Finance Lease Liability, Noncurrent Number of variable interest entities consolidated Variable Interest Entity, Number of Entities Consolidated Variable Interest Entity, Number of Entities Consolidated Document Period End Date Document Period End Date Adoption Date Trading Arrangement Adoption Date Financing leases Finance Lease, Weighted Average Discount Rate, Percent Lease liabilities - non-current portion, finance lease Finance Lease, Liability, Noncurrent Class A common stock in treasury Treasury Stock, Common Treasury Stock, Common [Member] Number of purchase option contracts to provide CNG Number Of Purchase Option Contracts Number Of Purchase Option Contracts Fair value of put option to a forward purchase contract related to Business Combination Noncash, Business Combination, Fair Value Adjustments Of Put Option On Forward Purchase Agreement Noncash, Business Combination, Fair Value Adjustments Of Put Option On Forward Purchase Agreement Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Accounts payable, related party Increase (Decrease) in Accounts Payable, Related Parties Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Provision for income taxes Income Tax Expense (Benefit) Reynolds Reynolds RNG LLC [Member] Reynolds RNG LLC Derivatives designated as cash flow hedges: Designated as Hedging Instrument [Member] Accounts receivable retainage, net Contract With Customer, Asset, After Allowance For Credit Loss, Retainage, Current Contract With Customer, Asset, After Allowance For Credit Loss, Retainage, Current Vehicles - finance leases Vehicles leases Finance Lease, Right-of-Use Asset, after Accumulated Amortization Number of operating segments Number of Operating Segments Weighted average remaining lease term (years) Weighted Average Remaining Lease Term [Abstract] Weighted Average Remaining Lease Term Fair value of Derivative warrant liabilities assumed related to Business Combination Noncash, Business Combination, Fair Value Adjustments Of Derivative Warrant Liabilities Noncash, Business Combination, Fair Value Adjustments Of Derivative Warrant Liabilities Site leases Site [Member] Site Equity Equity [Abstract] Operating leases Operating Lease, Weighted Average Remaining Lease Term Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Preferred stock redemption price (in dollars per share) Preferred Stock, Redemption Price Per Share Incremental borrowing rate Discount rate for operating leases Discount rate upon adoption, operating lease Lessee, Operating Lease, Discount Rate Contribution to equity method investments Contribution by the Company Equity Method Investments, Contributions Equity Method Investments, Contributions Unrealized gain on derivative financial instruments Unrealized Gain (Loss) on Derivatives Comprehensive (loss) income attributable to Class A common stockholders Comprehensive Income (Loss) Available To Common Stockholders Comprehensive Income (Loss) Available To Common Stockholders Cash and cash equivalents (includes $1,302 and $12,506 at September 30, 2023 and December 31, 2022, respectively, related to consolidated VIEs) Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Shares withheld for settlement of taxes (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Payments on indebtedness of Convertible Note Payable Repayments of Notes Payable Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Credit Facility [Domain] Credit Facility [Domain] Billings in excess of costs and estimated earnings Contract With Customer, Liability, Billings In Excess Of Costs And Estimated Earnings, Current Contract With Customer, Liability, Billings In Excess Of Costs And Estimated Earnings, Current Basis spread Debt Instrument, Basis Spread on Variable Rate Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Number of derivative instruments held Derivative, Number of Instruments Held Interest rate of note receivable Financing Receivable, Stated Interest Rate Financing Receivable, Stated Interest Rate Interest rate swap 1 Interest Rate Swap 1 [Member] Interest Rate Swap 1 Receivables, Contract Assets and Contract Liabilities From Contracts With Customers Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Right-of-use assets for finance leases as of January 1, 2022 included in Property, plant and equipment, net Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Discount based on incremental borrowing rate, finance lease Finance Lease, Liability, Undiscounted Excess Amount ArcLight Class A Common STock ArcLight Class A Common Stock [Member] ArcLight Class A Common Stock Additional paid-in capital Additional Paid-in Capital [Member] Net unrealized gain (loss) on cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Percentage of ownership transferred Equity Method Investment, Ownership Percentage Transferred Equity Method Investment, Ownership Percentage Transferred Vehicles Vehicles [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Income from equity method investments Income from equity method investments Net income (loss) from equity method investments Equity Method Investment(s) Income (Loss) from Equity Method Investments Revision of Prior Period [Axis] Revision of Prior Period [Axis] Cover [Abstract] Compressed Natural Gas (CNG) Natural Gas, Compressed [Member] Natural Gas, Compressed Subsequent Events Subsequent Events [Text Block] Amortization of deferred financing costs Amortization of deferred financing cost Amortization of Debt Issuance Costs Redeemable non-controlling interests Redeemable non-controlling interests Redeemable Noncontrolling Interest [Member] Redeemable Noncontrolling Interest Fair Value, Recurring Fair Value, Recurring [Member] Other long-term liabilities Other Liabilities, Noncurrent Future minimum lease payments, operating lease Lessee, Operating Lease, Liability, to be Paid Backlog Revenue, Remaining Performance Obligation, Amount Short term investments Short term investments Short-Term Investments Preferred stock conversion, VWAP period Preferred Stock Conversion, Volume Weighted Average Price, Period Preferred Stock Conversion, Volume Weighted Average Price, Period Weighed average effective interest rate Long-Term Debt, Weighted Average Interest Rate, over Time Cash Flow Hedging Cash Flow Hedging [Member] Amortization of right-of-use assets - finance leases Finance Lease, Right-of-Use Asset, Amortization Reportable Segments and Geographic Information Segment Reporting Disclosure [Text Block] Net (decrease) increase in cash, restricted cash, and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Secured Debt OPAL Term Loan OPAL Term Loan Secured Debt [Member] Additional renewal term (in years) Lessee, Operating Lease, Renewal Term Equity Component [Domain] Equity Component [Domain] Accrued capital expenses (includes $0 and $7,821 at September 30, 2023 and December 31, 2022, respectively, related to consolidated VIEs) Accrued capital expenses Accrued Capital Expenses, Current Accrued Capital Expenses, Current Lease liabilities - current portion, finance lease Finance Lease, Liability, Current Fair Value of Derivative Instruments on Balance Sheet and Effect of Netting Arrangements Offsetting Assets [Table Text Block] Discount based on incremental borrowing rate Operating Lease And Finance Lease, Liability, Undiscounted Excess Amount Operating Lease And Finance Lease, Liability, Undiscounted Excess Amount Office leases Office And Warehouse Space [Member] Office And Warehouse Space Maximum equity commitment letter Contractual Obligation Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Entity Current Reporting Status Entity Current Reporting Status Concentration Risk Type [Domain] Concentration Risk Type [Domain] Operating income (loss) Operating Income (Loss) 2022 Omnibus Equity Incentive Plan ("2022 Plan") 2022 Omnibus Equity Incentive Plan ("2022 Plan") [Member] 2022 Omnibus Equity Incentive Plan ("2022 Plan") Leases Lessor, Leases [Policy Text Block] Consolidated Entities [Domain] Consolidated Entities [Domain] Distribution of Redeemable preferred non-controlling interests Temporary Equity, Distributions To Redeemable Preferred Noncontrolling Interest Holders Temporary Equity, Distributions To Redeemable Preferred Noncontrolling Interest Holders Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Segments [Axis] Segments [Axis] Scenario [Domain] Scenario [Domain] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Opal Credit Agreement Opal Credit Agreement [Member] Opal Credit Agreement Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Variable Rate [Domain] Variable Rate [Domain] Fair value of contingent consideration to redeem the non-controlling interest included in Other long-term liabilities Noncash, Contingent Consideration, Fair Value Adjustments To Redeem Noncontrolling Interest Noncash, Contingent Consideration, Fair Value Adjustments To Redeem Noncontrolling Interest Pay vs Performance Disclosure [Line Items] Statistical Measurement [Domain] Statistical Measurement [Domain] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Note receivable Financing Receivable, after Allowance for Credit Loss, Noncurrent Preferred stock liquidation preference (in dollars per share) Preferred Stock, Liquidation Preference Per Share Costar Costar Partners LLC ("Costar") [Member] Costar Partners LLC ("Costar") Number of Units outstanding, beginning balance (in shares) Number of Units outstanding, ending balance (in shares) Shares outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Series A units issued by OPAL Fuels Temporary Equity, Stock Issued During Period, Value, New Issues Borrowings Debt Disclosure [Text Block] 2027 and beyond, finance lease Finance Lease, Liability, To Be Paid, After Year Four Finance Lease, Liability, To Be Paid, After Year Four Statement of Stockholders' Equity [Abstract] Revolving Credit Facility Revolving Credit Facility [Member] Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Opal Term Loan II, Delayed Term Loan Facility ("DDTL") Opal Term Loan II, Delayed Term Loan ("DDTL") Facility [Member] Opal Term Loan II, Delayed Term Loan ("DDTL") Facility NextEra NextEra [Member] NextEra Loss on termination Loss on Derivative Instruments, Pretax Equity Method Investments and Joint Ventures [Abstract] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Performance Shares Performance Stock Units Performance Shares [Member] Segment Reporting [Abstract] Parts inventory Inventory, Parts and Components, Net of Reserves Interest rate swap 2 Interest Rate Swap 2 [Member] Interest Rate Swap 2 Restatement Determination Date: Restatement Determination Date [Axis] Investment, Name [Axis] Investment, Name [Axis] Commitments and contingencies Commitments and Contingencies Fortistar Fortistar LLC ("Fortistar") [Member] Fortistar LLC ("Fortistar") Issuance of common stock from the reverse capitalization and PIPE investments, net of warrant liability, put option and earnout liabilities (in shares) Stock Issued During Period, Shares, Reverse Recapitalization Stock Issued During Period, Shares, Reverse Recapitalization Cash paid for Purchases of Property, Plant, and Equipment: Segment, Expenditure, Addition to Long-Lived Assets Schedule of Goodwill [Table] Schedule of Goodwill [Table] Geographical [Axis] Geographical [Axis] Weighted average discount rate Leases, Weighted Average Discount Rate [Abstract] Leases, Weighted Average Discount Rate Income Taxes Income Tax Disclosure [Text Block] Contract liabilities Increase (Decrease) in Contract with Customer, Liability Service fees per year Related Party Transaction, Service Fees, Fixed Annual Payment Amount Related Party Transaction, Service Fees, Fixed Annual Payment Amount Gross property, plant, equipment and finance leases Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Leases Lessee, Leases [Policy Text Block] Revenue Recognition Revenue [Policy Text Block] Other comprehensive income (loss) attributable to Redeemable non-controlling interests Other comprehensive loss Other Comprehensive Income (Loss), Net Of Tax, Attributable To Nonredeemable Noncontrolling Interest Other Comprehensive Income (Loss), Net Of Tax, Attributable To Nonredeemable Noncontrolling Interest Discount rate upon adoption, finance lease Lessee, Finance Lease, Discount Rate Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Preferred stock redemption period after which redeemable Preferred Stock Redemption, Period After Which Redeemable Preferred Stock Redemption, Period After Which Redeemable Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] PEO Total Compensation Amount PEO Total Compensation Amount Hedging Relationship [Axis] Hedging Relationship [Axis] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Goodwill [Roll Forward] Goodwill [Roll Forward] Contingent consideration, escrow Derivative Instrument, Contingent Consideration, Liability, Escrow Derivative Instrument, Contingent Consideration, Liability, Escrow Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Level 3 Fair Value, Inputs, Level 3 [Member] Class A common stock, in treasury, at cost (in shares) Treasury stock, beginning balance (in shares) Treasury stock, ending balance (in shares) Treasury Stock, Common, Shares Leases Lessor, Operating Leases [Text Block] Number of Units outstanding, beginning balance (in shares) Number of Units outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Payment of paid-in-kind preferred dividends Temporary Equity, Dividend, Preferred Stock, Cash, Distributions To Redeemable Preferred Noncontrolling Interest Holders Temporary Equity, Dividend, Preferred Stock, Cash, Distributions To Redeemable Preferred Noncontrolling Interest Holders Interest income Interest Income, Interest-Earning Asset Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Short term investments Investments, Fair Value Disclosure Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Net Income (Loss) Net Income (Loss) Total current liabilities Liabilities, Current Operating lease right-of-use assets Operating And Finance Lease, Right-Of-Use Asset Operating And Finance Lease, Right-Of-Use Asset MS Digester ("MS") And VS Digester ("VS") MS Digester ("MS") And VS Digester ("VS") [Member] MS Digester ("MS") And VS Digester ("VS") Derivative Contract [Domain] Derivative Contract [Domain] Paid-in-kind dividends attributable to OPAL Fuels Temporary Equity, Accretion Of Dividends, Attributable To Parent Temporary Equity, Accretion Of Dividends, Attributable To Parent 2024, finance lease Finance Lease, Liability, to be Paid, Year Two Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Company Selected Measure Name Company Selected Measure Name Leases Lessee, Operating Leases [Text Block] Property, plant, and equipment, net (includes $26,684 and $73,140 at September 30, 2023 and December 31, 2022, respectively, related to consolidated VIEs) Property, plant and equipment, net Property, plant, and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Parts inventory Increase (Decrease) In Parts Inventories Increase (Decrease) In Parts Inventories Liabilities and Equity Liabilities and equity Liabilities and Equity [Abstract] Entity Ex Transition Period Entity Ex Transition Period Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Repayment of Convertible Note Payable Repayments of Convertible Debt Dividends on Redeemable preferred non-controlling interests Dividends on Redeemable preferred non-controlling interests Redeemable Preferred Stock Dividends Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Variable Rate, Fixed Margin, Period One Variable Rate, Fixed Margin, Period One [Member] Variable Rate, Fixed Margin, Period One Cost of sales Cost of Goods and Services Sold Interest rate swaption Interest Rate Swaption [Member] RNG Fuel RNG Fuel RNG Fuel Renewable Natural Gas Fuel Supply Segment [Member] Renewable Natural Gas Fuel Supply Segment Stock-based Compensation Expense Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Class B common stock Class B common stock Common Class B [Member] Unrealized gain cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Excluding Redeemable Noncontrolling Interests, After Reclassification And Tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Excluding Redeemable Noncontrolling Interests, After Reclassification And Tax Name Measure Name Name Forgone Recovery, Individual Name Goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Number of noncontrolling interests in renewable natural gas project subsidiaries Variable Interest Entity, Number Of Project Subsidiary Variable Interest Entity, Number Of Project Subsidiary Derivative assets (liabilities) Derivative Assets (Liabilities), at Fair Value, Net Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Asset Acquisition [Domain] Asset Acquisition [Domain] Underlying Securities Award Underlying Securities Amount Maximum debt to worth ratio Debt Instrument, Covenant, Debt To Worth Ratio, Maximum Debt Instrument, Covenant, Debt To Worth Ratio, Maximum Accounts receivable Increase (Decrease) in Accounts Receivable Forecast Forecast [Member] Transaction [Domain] Transaction [Domain] For the remainder of the year ending December 31, 2023 Long-Term Debt, Maturity, Remainder of Fiscal Year Interest rate swaps Derivative Instruments Not Designated As Hedging Instruments, Including Net Periodic Settlements, Gain (Loss), Net Derivative Instruments Not Designated As Hedging Instruments, Including Net Periodic Settlements, Gain (Loss), Net Public Warrants Warrant [Member] Operating lease liabilities - non-current portion Operating Lease, Liability, Noncurrent Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Class of Warrant or Right [Table] Class of Warrant or Right [Table] Term of loan (in years) Debt Instrument, Term Renewable Power Renewable Power Renewable Power Segment [Member] Renewable Power Segment Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Financing fees paid Payments of Debt Issuance Costs Number of standby letters of credit held Number Of Standby Letters Of Credits Held Number Of Standby Letters Of Credits Held Revision of Prior Period, Reclassification, Adjustment Revision of Prior Period, Reclassification, Adjustment [Member] Future Minimum Lease Payments - Operating Leases Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Dilutive effect of stock options, restricted stock units, performance units, Convertible note payable, earnout shares, Redeemable preferred non-controlling interests, Redeemable non-controlling interests (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Note receivable - variable fee component Financing Receivable, After Allowance For Credit Loss, Variable Fee Component, Noncurrent Financing Receivable, After Allowance For Credit Loss, Variable Fee Component, Noncurrent Third party construction Third Party Construction [Member] Third Party Construction Risk free interest rate Measurement Input, Risk Free Interest Rate [Member] Product and Service [Domain] Product and Service [Domain] Repayment of Municipality loan Repayments of Other Long-Term Debt Redeemable non-controlling interests Beginning balance Ending balance Temporary Equity, Carrying Amount, Attributable to Parent Other Performance Measure, Amount Other Performance Measure, Amount Percentage of notes converted Debt Instrument, Convertible, Percentage Of Outstanding Amount Converted Debt Instrument, Convertible, Percentage Of Outstanding Amount Converted Right-Of-Use Assets And Lease Liabilities Lease, Cost [Table Text Block] Forfeiture of Class A common stock (in shares) Forfeited shares (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, Forfeited Contract assets Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Current Standby Letters of Credit Standby Letters of Credit [Member] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds received from Business Combination Proceeds From Reverse Recapitalization Transaction Proceeds From Reverse Recapitalization Transaction Asset retirement obligation, current portion Less: current portion Asset Retirement Obligation, Current Derivative Instruments and Hedging Activities Disclosure [Abstract] IT services IT Services [Member] IT Services Cost and estimated earnings in excess of billings Contract With Customer, Asset, After Allowance For Credit Loss, Cost And Estimated Earnings In Excess Of Billings, Current Contract With Customer, Asset, After Allowance For Credit Loss, Cost And Estimated Earnings In Excess Of Billings, Current Fuel tax credits receivable Income Taxes Receivable, Current Amortization on payment to acquire non-redeemable noncontrolling interest Temporary Equity, Amortization On Payment To Acquire Non-Redeemable Noncontrolling Interest Temporary Equity, Amortization On Payment To Acquire Non-Redeemable Noncontrolling Interest Accrual for purchase of Property, plant and equipment included in Accounts payable and Accrued capital expenses Capital Expenditures Incurred but Not yet Paid Loss on debt extinguishment Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt For the remainder of the year ending December 31, 2023 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Trading Arrangement: Trading Arrangement [Axis] Number of deconsolidated entities Equity Method Investment, Number Of Entities Deconsolidated Equity Method Investment, Number Of Entities Deconsolidated Schedule of Interest Expense on Borrowings Interest Income and Interest Expense Disclosure [Table Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Exercise of put option forward purchase contract - Meteora (in shares) Treasury Stock, Shares, Acquired, Fair Value Treasury Stock, Shares, Acquired, Fair Value Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Total unvested awards outstanding, Weighted Average Grant Date Fair Value (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Options And Equity Instruments Other Than Options, Outstanding And Nonvested, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Options And Equity Instruments Other Than Options, Outstanding And Nonvested, Weighted Average Grant Date Fair Value Entity File Number Entity File Number Proceeds from sale of non-redeemable non-controlling interest Proceeds From Nonredeemable Noncontrolling Interest Proceeds From Nonredeemable Noncontrolling Interest Discount rate Measurement Input, Discount Rate [Member] 2026 Long-Term Debt, Maturity, Year Three Amortization expense Amortization of Intangible Assets Entity Shell Company Entity Shell Company Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Restatement Determination Date Restatement Determination Date Fuel tax credits payable Increase (Decrease) in Income Taxes Payable Net income attributable to Redeemable non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Redeemable Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Redeemable Noncontrolling Interest Dividends on Redeemable preferred non-controlling interests Temporary Equity, Dividends, Adjustment Plant and equipment Plant and Equipment [Member] Plant and Equipment Other current and non-current liabilities Increase (Decrease) in Other Operating Liabilities Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Payments Debt Instrument, Periodic Payment, Principal Cash, restricted cash, and cash equivalents, beginning of period Cash, restricted cash, and cash equivalents, end of period Total cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Expected term Measurement Input, Expected Term [Member] Municipality Loan Municipality Loan Loans Payable [Member] Lease expense Operating Lease, Cost Environmental credits held for sale (includes $29 and $0 at September 30, 2023 and December 31, 2022, respectively, related to consolidated VIEs) Environmental credits held for sale Asset, Held-for-Sale, Not Part of Disposal Group, Current Common stock, shares issued (in shares) Common Stock, Shares, Issued Vested in August 2023 (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Class A common stock in treasury, at cost; 1,635,783 and 0 shares at September 30, 2023 and December 31, 2022, respectively Treasury Stock, Common, Value Total Loan outstanding Long-Term Debt Amount sold Sale of Stock, Consideration Received on Transaction Opal Fuels Opal Fuels [Member] Opal Fuels 2027 Long-Term Debt, Maturity, Year Four Number of variable interest entities Variable Interest Entity, Number Of Entities Variable Interest Entity, Number Of Entities Class A common stock Common Class A [Member] Unrecognized stock-based compensation expense, weighted average period (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Total unvested awards outstanding, Aggregate Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Options And Equity Instruments Other Than Options, Aggregate Intrinsic Value, Outstanding And Nonvested Share-Based Compensation Arrangement By Share-Based Payment Award, Options And Equity Instruments Other Than Options, Aggregate Intrinsic Value, Outstanding And Nonvested Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Subsequent Event [Table] Subsequent Event [Table] Number of natural gas producers Number Of Natural Gas Producers Number Of Natural Gas Producers Share price Measurement Input, Share Price [Member] 2023, finance lease Finance Lease, Liability, to be Paid, Year One Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Commodity Contract, Contract One Commodity Contract, Contract One [Member] Commodity Contract, Contract One Cancellation of fractional shares on warrant exchange (in shares) Forfeiture On Shares, Issued, Warrant Exchange Forfeiture On Shares, Issued, Warrant Exchange Subsequent Event Subsequent Event [Member] Net (loss) income attributable to redeemable non-controlling interests Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Schedule of Intangible Assets with Definite Lives Schedule of Finite-Lived Intangible Assets [Table Text Block] Other current liabilities Other Liabilities, Current Income Statement [Abstract] Stock issued (in shares) Stock Issued During Period, Shares, New Issues Contract assets Increase (Decrease) in Contract with Customer, Asset Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Offset to derivative liabilities Derivative liabilities Derivative Liability Deferred Financing Costs And Capitalized Interest Deferred Financing Costs And Capitalized Interest [Member] Deferred Financing Costs And Capitalized Interest Staffing and management services Staffing and Management Services [Member] Staffing and Management Services Redeemed outstanding debt Debt Conversion, Converted Instrument, Amount Other comprehensive income: Other Comprehensive Income (Loss), Tax [Abstract] Investment in other entities Beginning balance Ending balance Equity Method Investment(s) Equity Method Investments Net income from equity method investment Equity Method Investment, Income (Loss), Gross Equity Method Investment, Income (Loss), Gross Land Land [Member] Capital spares Inventory, Noncurrent Total Shareholder Return Amount Total Shareholder Return Amount Option to purchase shares (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Lease liabilities - non-current portion Operating And Finance Lease, Liability, Noncurrent Operating And Finance Lease, Liability, Noncurrent Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding 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Key Entity Central Index Key Liabilities: Liabilities, Fair Value Disclosure [Abstract] Gain on Earnout Awards Business Combination, Deconsolidation And Equity Method Investments, Gain (Loss), Amount Business Combination, Deconsolidation And Equity Method Investments, Gain (Loss), Amount Sunoma Loan, net of debt issuance costs (includes $20,402 and $21,712 at September 30, 2023 and December 31, 2022, respectively, related to consolidated VIEs) Sunoma Loan, net of debt issuance costs Sunoma loan, net of debt issuance costs Long-Term Construction Loan, Noncurrent Stock-based compensation expense Share-Based Payment Arrangement, Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Cost Finite-Lived Intangible Assets, Gross New Jersey NEW JERSEY Accrued payroll Employee-related Liabilities, Current Financing costs paid to other third parties Payments of Financing Costs Revenue Benchmark Revenue Benchmark [Member] Name Trading Arrangement, Individual Name Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Opal Term Loan II Opal Term Loan II [Member] Opal Term Loan II Disaggregation of Revenue By Product Line Disaggregation of Revenue [Table Text Block] Accretion expense related to asset retirement obligation Accretion expense Asset Retirement Obligation, Accretion Expense Operating agreements Operating Agreements [Member] Operating Agreements Total revenue from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Entity [Domain] Entity [Domain] 2026 Operating And Finance Lease Liability, To Be Paid, Year Four Operating And Finance Lease Liability, To Be Paid, Year Four Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Beginning balance (in shares) Ending balance (in shares) Temporary Equity, Shares Outstanding Intangible Assets, Net Intangible Assets Disclosure [Text Block] Legal Entity [Axis] Legal Entity [Axis] 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