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Block] Number of leases Number Of Leases Number Of Leases Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Risk free interest rate Measurement Input, Risk Free Interest Rate [Member] Legal and professional fees Professional Fees Class B common stock Class B common stock Common Class B [Member] Title Trading Arrangement, Individual Title Consolidated Entities [Axis] Consolidated Entities [Axis] Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] City Area Code City Area Code Current liabilities: Current liabilities: Liabilities, Current [Abstract] Accrual for asset retirement obligation included in Property, plant and equipment Noncash, Asset Retirement Obligation Accrual Included In Property, Plant And Equipment Noncash, Asset Retirement Obligation Accrual Included In Property, Plant And Equipment Earnout liabilities Business Combination, Contingent Consideration, Liability Fuel Purchasing Agreements Fuel Purchasing Agreements [Member] Fuel Purchasing Agreements Revenue Recognition Revenue [Policy Text Block] Sunoma Loan - current portion (includes $1,689 and $1,608 at June 30, 2024 and December 31, 2023, respectively, related to consolidated VIEs) Sunoma Loan- current portion Long-Term Construction Loan, Current Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] 2025 Operating And Finance Lease Liability, To Be Paid, Year Two Operating And Finance Lease Liability, To Be Paid, Year Two Schedule of Interest Expense on Borrowings Interest Income and Interest Expense Disclosure [Table Text Block] Stock-based compensation Temporary Equity, Increase From Stock Based Compensation Temporary Equity, Increase From Stock Based Compensation OPAL Term Loan - current portion Secured Debt, Current Senior Secured Credit Facility - Working Capital Facility Senior Secured Credit Facility - Working Capital Facility [Member] Senior Secured Credit Facility - Working Capital Facility Redeemable preferred non-controlling interests Redeemable Preferred non-controlling interests Redeemable Preferred Noncontrolling Interest [Member] Redeemable Preferred Noncontrolling Interest Document Information [Line Items] Document Information [Line Items] Non-current borrowings total Long-term debt, excluding current portion Long-Term Debt, Excluding Current Maturities Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Weighted average fair value per restricted unit on grant date Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Preferred stock conversion, thereafter discount Preferred Stock, Conversion, After Second Year Discount, Percentage Preferred Stock, Conversion, After Second Year Discount, Percentage Expected term Measurement Input, Expected Term [Member] Earnings Per Share [Abstract] Equity Equity [Abstract] Sponsor Earnout Awards Sponsor Earnout Shares [Member] Sponsor Earnout Shares Accumulated deficit Retained Earnings (Accumulated Deficit) Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Environmental Processing Fees Environmental Processing Fees [Member] Environmental Processing Fees Class of Stock [Domain] Class of Stock [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Net income (loss) Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Schedule of Borrowings Schedule of Debt [Table Text Block] Increase (Decrease) In Temporary Equity, Amount [Roll Forward] Increase (Decrease) In Temporary Equity, Amount [Roll Forward] Increase (Decrease) In Temporary Equity, Amount 2026 Long-Term Debt, Maturity, Year Two Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Lease liabilities, operating lease Operating Lease, Liability Underlying Securities Award Underlying Securities Amount Performance Shares Performance Stock Units Performance Shares [Member] 2028, finance lease Finance Lease, Liability, to be Paid, Year Five Amendment Flag Amendment Flag Environmental credits held for sale Inventory Finished Goods, Policy [Policy Text Block] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Cash, Cash Equivalents and Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Amortization of right-of-use assets - finance leases Finance Lease, Right-of-Use Asset, Amortization Hillman Hillman [Member] Hillman Stock issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Less: unamortized debt issuance costs Debt Issuance Costs, Net Vehicles Vehicles [Member] Borrowings Debt Disclosure [Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] M D Digester L L C M D Digester L L C [Member] M D Digester L L C Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Aggregate principal amount Debt Instrument, Face Amount Minimum debt to cash flow ratio 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 Entity Address, Postal Zip Code Entity Address, Postal Zip Code Summary of Equity Awards Under 2022 Plan Share-Based Compensation Arrangements by Share-Based Payment Award, Restricted Stock Units, Vested and Expected to Vest [Table Text Block] Interest rate swaps Interest Rate Swap [Member] Cash and cash equivalents (includes $533 and $166 at June 30, 2024 and December 31, 2023, respectively, related to consolidated VIEs) Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Leases Lessor, Operating Leases [Text Block] Permanent Loan Permanent Loan [Member] Permanent Loan Accounts payable Increase (Decrease) in Other Accounts Payable Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Forfeitures (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 Number of variable interest entities consolidated Variable Interest Entity, Number of Entities Consolidated Variable Interest Entity, Number of Entities Consolidated Dividends on redeemable preferred non-controlling interests Paid-in-kind preferred dividend Dividends, Preferred Stock, Paid-in-kind Loss on debt extinguishment Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Number of purchase option contracts to provide CNG Number Of Purchase Option Contracts Number Of Purchase Option Contracts Number of Units outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Reynolds Reynolds RNG LLC [Member] Reynolds RNG LLC Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] 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 Property, plant, and equipment, net (includes $25,884 and $26,626 at June 30, 2024 and December 31, 2023, 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 Debt reserve Restricted Cash, Current, Debt Reserve Restricted Cash, Current, Debt Reserve Weighted average remaining lease term (years) Weighted Average Remaining Lease Term [Abstract] Weighted Average Remaining Lease Term Net (loss) income attributable to Class A common stockholders Net (loss) income attributable to Class A common stockholders Net Income (Loss) Available to Common Stockholders, Basic Site lease expenses Site Lease Expense Site Lease Expense Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Site leases Site [Member] Site Equipment loan Equipment Loan [Member] Equipment Loan Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Weighted average shares outstanding of Class A common stock: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Total assets Total Assets: Assets Cost of sales Cost of Goods and Services Sold Fuel tax credits receivable Income Taxes Receivable, Current Purchase of property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Other long-term liabilities (includes $2,683 and $211 at June 30, 2024 and December 31, 2023, respectively, related to consolidated VIEs) Other long-term liabilities Other Liabilities, Noncurrent Contribution by the Company Equity Method Investments, Contributions Equity Method Investments, Contributions Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Commitments and contingencies Commitments and Contingencies Comprehensive (loss) income attributable to Class A common stockholders Comprehensive Income (Loss) Available To Common Stockholders Comprehensive Income (Loss) Available To Common Stockholders Termination Date Trading Arrangement Termination Date Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] 2025, operating lease Lessee, Operating Lease, Liability, to be Paid, Year Two 2025 Long-Term Debt, Maturity, Year One 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 Withheld for settlement of taxes Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Fair Value, Shares Withheld For Tax Withholding Obligation Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Fair Value, Shares Withheld For Tax Withholding Obligation Debt Instrument [Axis] Debt Instrument [Axis] Changes in Redeemable Preferred Units Temporary Equity [Table Text Block] Net Income (Loss) Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] B. Riley Securities, Inc., Cantor Fitzgerald & Co. And Stifel, Nicolaus & Company, Incorporated ("Agent") B. Riley Securities, Inc., Cantor Fitzgerald & Co. And Stifel, Nicolaus & Company, Incorporated ("Agent") [Member] B. Riley Securities, Inc., Cantor Fitzgerald & Co. And Stifel, Nicolaus & Company, Incorporated ("Agent") Entity File Number Entity File Number Commodity swaps - realized (loss) gain Gain (Loss) on Sale of Commodity Contracts Consolidated Entities [Domain] Consolidated Entities [Domain] Non-redeemable non-controlling interests Noncontrolling Interest [Member] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Rent per gasoline gallon equivalent (in dollars per gasoline gallon equivalent) Lessee, Finance Lease, Rent Per Gasoline Gallon Equivalent Lessee, Finance Lease, Rent Per Gasoline Gallon Equivalent Compressed Natural Gas (CNG) Natural Gas, Compressed [Member] Natural Gas, Compressed Entity Address, Address Line Two Entity Address, Address Line Two Term of lease Lessee, Operating Lease, Term of Contract Redeemable non-controlling interests Redeemable non-controlling interests Redeemable Noncontrolling Interest [Member] Redeemable Noncontrolling Interest Name Forgone Recovery, Individual Name Operating leases Operating Lease, Weighted Average Remaining Lease Term Transaction [Domain] Transaction [Domain] Short term investments Investment, Policy [Policy Text Block] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Preferred stock conversion, VWAP period Preferred Stock Conversion, Volume Weighted Average Price, Period Preferred Stock Conversion, Volume Weighted Average Price, Period Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Gain on deconsolidation of VIEs Gain on deconsolidation of VIEs Deconsolidation, Gain (Loss), Amount PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Accrued capital expenses Accrued Capital Expenses, Current Accrued Capital Expenses, Current Project development and start up costs Start-up Activities, Cost Policy [Policy Text Block] Adjustment to Compensation: Adjustment to Compensation [Axis] 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 Accounts Receivable Accounts Receivable [Member] Document Quarterly Report Document Quarterly Report Reclassification adjustments included in earnings Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] 2022 Plan 2022 Omnibus Equity Incentive Plan ("2022 Plan") [Member] 2022 Omnibus Equity Incentive Plan ("2022 Plan") Other Property, Plant and Equipment, Other Types [Member] Dividends on redeemable preferred non-controlling interests Temporary Equity, Distributions To Redeemable Preferred Noncontrolling Interest Holders Temporary Equity, Distributions To Redeemable Preferred Noncontrolling Interest Holders Basic (in shares) Weighted average number of shares of Class A common stock - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Related Party [Axis] Related and Nonrelated Parties [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Capital spares Inventory, Noncurrent Document Information [Table] Document Information [Table] Total Stockholders' deficit Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Name Awards Close in Time to MNPI Disclosures, Individual Name Construction in progress Construction in Progress [Member] Revenue Benchmark Revenue Benchmark [Member] Entity Filer Category Entity Filer Category Backlog Revenue, Remaining Performance Obligation, Amount Draws on letters of credit Draws on standby letters of credit Proceeds from Long-Term Lines of Credit Common stock, number of votes per share Common Stock, Number Of Votes Per Share Common Stock, Number Of Votes Per Share Statistical Measurement [Domain] Statistical Measurement [Domain] Cash paid for Purchases of Property, Plant, and Equipment: Segment, Expenditure, Addition to Long-Lived Assets Granted Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Aggregate Fair Value, Grants In Period Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Aggregate Fair Value, Grants In Period Right-Of-Use Assets And Lease Liabilities Lease, Cost [Table Text Block] Contract assets Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Current Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Management Services Agreement Management Services Agreement [Member] Management Services Agreement Costar Costar Partners LLC ("Costar") [Member] Costar Partners LLC ("Costar") Director Director [Member] Other current liabilities (includes $97 and $92 at June 30, 2024 and December 31, 2023, respectively, related to consolidated VIEs) Other current liabilities Other Liabilities, Current Redemption price (in dollars per share) Temporary Equity, Redemption Price Per Share Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] All Trading Arrangements All Trading Arrangements [Member] NextEra NextEra [Member] NextEra Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Schedule of Basic and Diluted Net Loss Per Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Vesting period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Derivative [Line Items] Derivative [Line Items] Monthly fee, maximum Related Party Transaction, Monthly Fee, Maximum Related Party Transaction, Monthly Fee, Maximum Class A common stock Common Class A [Member] Issuance of Class A common stock on warrant exchange (in shares) Conversion of stock (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Investment in other entities Beginning balance Ending balance Equity Method Investment(s) Equity Method Investments Pay vs Performance Disclosure [Line Items] Fortistar Fortistar LLC ("Fortistar") [Member] Fortistar LLC ("Fortistar") Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Derivative [Table] Derivative [Table] Operating lease liabilities - current and non-current Increase in operating liability Increase (Decrease) in Operating Lease Liability Granted Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Fair Value, Grants In Period Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Fair Value, Grants In Period Share conversion Conversion of Stock, Amount Converted Derivatives Fair Values on Balance Sheet Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Weighted average discount rate Leases, Weighted Average Discount Rate [Abstract] Leases, Weighted Average Discount Rate Virtual pipeline costs Virtual Pipeline Expense Virtual Pipeline Expense Other Performance Measure, Amount Other Performance Measure, Amount 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Three Service fees per year Related Party Transaction, Service Fees, Fixed Annual Payment Amount Related Party Transaction, Service Fees, Fixed Annual Payment Amount Goodwill [Line Items] Goodwill [Line Items] Leases Lessee, Operating Leases [Text Block] Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Lease expense Operating Lease, Cost Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Other comprehensive income (loss) attributable to Redeemable non-controlling interests Other comprehensive income (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 Operating lease liabilities - non-current portion Operating Lease, Liability, Noncurrent Interest expense on finance leases Interest expense on lease liabilities - finance leases Finance Lease, Interest Expense Warrants expiration period Warrants and Rights Outstanding, Term Contract liabilities Contract liabilities Contract with Customer, Liability, Current Preferred stock redemption period after which redeemable Preferred Stock Redemption, Period After Which Redeemable Preferred Stock Redemption, Period After Which Redeemable Municipality Loan Loans Payable [Member] Preferred stock liquidation preference (in dollars per share) Preferred Stock, Liquidation Preference Per Share Entity Tax Identification Number Entity Tax Identification Number Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Renewable Power sales Renewable Power Sales [Member] Renewable Power Sales Money Market Funds Money Market Funds [Member] Common units, shares issued (in shares) Common Unit, Issued Amount sold Sale of Stock, Consideration Received on Transaction Class A common stock in treasury Treasury Stock, Common Treasury Stock, Common [Member] Summary of Commodity Swaps And Other Derivatives Schedule of Derivative Instruments [Table Text Block] Intersegment eliminations Intersegment Eliminations [Member] Asset retirement obligation - non-current portion Total asset retirement obligation, net of current portion Asset Retirement Obligations, Noncurrent Plan Name [Axis] Plan Name [Axis] Thereafter, finance lease Finance Lease, Liability, to be Paid, after Year Five Total right-of-use assets Operating And Finance Lease, Right-Of-Use Asset Operating And Finance Lease, Right-Of-Use Asset Equity Components [Axis] Equity Components [Axis] Preferred dividends attributable to OPAL Fuels Temporary Equity, Accretion Of Dividends, Attributable To Parent Temporary Equity, Accretion Of Dividends, Attributable To Parent Future minimum lease payments, finance lease Finance Lease, Liability, to be Paid Effective portion of the cash flow hedge attributable to equity method investments Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments and Tax Parts inventory Increase (Decrease) In Parts Inventories Increase (Decrease) In Parts Inventories Total expenses Costs and Expenses Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Variable Rate, Fixed Margin, Period One Variable Rate, Fixed Margin, Period One [Member] Variable Rate, Fixed Margin, Period One Aggregate intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] RNG Fuel RNG Fuel Renewable Natural Gas Fuel Supply Segment [Member] Renewable Natural Gas Fuel Supply Segment Geographical [Axis] Geographical [Axis] 2028, operating lease Lessee, Operating Lease, Liability, to be Paid, Year Five Discount rate for operating and finance leases Lessee, Operating And Finance Lease, Discount Rate Lessee, Operating And Finance Lease, Discount Rate OCI Fuels B.V. ("OCI") OCI Fuels B.V. ("OCI") [Member] OCI Fuels B.V. ("OCI") Increase (Decrease) In Temporary Equity And Redeemable Noncontrolling Interest [Abstract] Increase (Decrease) In Temporary Equity And Redeemable Noncontrolling Interest [Roll Forward] Increase (Decrease) In Temporary Equity And Redeemable Noncontrolling Interest Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Number of noncontrolling interests in renewable natural gas project subsidiaries Variable Interest Entity, Number Of Project Subsidiary Variable Interest Entity, Number Of Project Subsidiary Dividend yield Measurement Input, Expected Dividend Rate [Member] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Maximum debt to worth ratio Debt Instrument, Covenant, Debt To Worth Ratio, Maximum Debt Instrument, Covenant, Debt To Worth Ratio, Maximum Cash paid for investment in other entities Payments for (Proceeds from) Investments 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 and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Certain Employees Certain Employees [Member] Certain Employees Current assets: Current assets: Current assets: Assets, Current [Abstract] 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 Common stock, number of votes Common Stock, Number Of Votes Common Stock, Number Of Votes Consolidation Items [Axis] Consolidation Items [Axis] Fair value measurements Fair Value of Financial Instruments, Policy [Policy Text Block] Renewable Power Renewable Power Renewable Power Segment [Member] Renewable Power Segment 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 Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Product and Service [Domain] Product and Service [Domain] Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Goodwill [Roll Forward] Goodwill [Roll Forward] Number of standby letters of credit held Number Of Standby Letters Of Credits Held Number Of Standby Letters Of Credits Held Recorded Unconditional Purchase Obligation, Category [Domain] Recorded Unconditional Purchase Obligation, Category [Domain] Security Exchange Name Security Exchange Name Basis spread on permanent loan Debt Instrument, Basis Spread on Variable Rate 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 Related Party Transaction [Domain] Related Party Transaction [Domain] Third party construction Third Party Construction [Member] Third Party Construction Comprehensive income (loss) attributable to non-redeemable non-controlling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Project development and startup costs Total Project development and startup costs Research and Development Expense 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 Number of Units outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Goodwill and Intangible Assets Disclosure [Abstract] Common stock, shares issued (in shares) Common Stock, Shares, Issued Fuel tax credits payable Increase (Decrease) in Income Taxes Payable Number of deconsolidated entities Equity Method Investment, Number Of Entities Deconsolidated Equity Method Investment, Number Of Entities Deconsolidated Entity [Domain] Entity [Domain] Revolving credit arrangement borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Concentration risk percentage Concentration Risk, Percentage Exercise of put option forward purchase contract - Meteora (in shares) Treasury Stock, Shares, Acquired, Fair Value Treasury Stock, Shares, Acquired, Fair Value 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 Proceeds from sale of non-redeemable non-controlling interest Proceeds From Nonredeemable Noncontrolling Interest Proceeds From Nonredeemable Noncontrolling Interest Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] OPAL Term Loan - non-current portion Secured Long-Term Debt, Noncurrent Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Class of Warrant or Right [Table] Class of Warrant or Right [Table] Capital spares Increase (Decrease) in Finished Goods and Work in Process Inventories 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 Plant and equipment Plant and Equipment [Member] Plant and Equipment Six months ended December 31, 2024 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Net income (loss) Temporary Equity, Net Income Related Party Related Party [Member] Additional renewal term (in years) Lessee, Operating Lease, Renewal Term Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Hedging Designation [Domain] Hedging Designation [Domain] Property, Plant, and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Proceeds from sale of short term investments Proceeds from Sale of Short-Term Investments Opal Fuels Opal Fuels [Member] Opal Fuels Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Fair Value, Recurring Fair Value, Recurring [Member] Number of variable interest entities Variable Interest Entity, Number Of Entities Variable Interest Entity, Number Of Entities Accounts receivable, net (includes $388 and $33 at June 30, 2024 and December 31, 2023, respectively, related to consolidated VIEs) Accounts receivable, net Accounts receivable Accounts Receivable, after Allowance for Credit Loss, Current Options granted (in shares) Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Other current and non-current liabilities Increase (Decrease) in Other Operating Liabilities Environmental credits held for sale Environmental credits held for sale Asset, Held-for-Sale, Not Part of Disposal Group, Current Total Long-Term Debt Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Accounts receivable, related party Accounts receivable, related party Accounts Receivable, before Allowance for Credit Loss, Current 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 Aggregate Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Aggregate Fair Value [Roll Forward] Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Aggregate Fair Value Restricted cash - current (includes $940 and $4,395 at June 30, 2024 and December 31, 2023, respectively, related to consolidated VIEs) Restricted cash - current Restricted cash - current Restricted cash - current Restricted Cash, Current Issuance of Class A common stock for vesting of equity awards Stock Issued During Period, Value, Restricted Stock Award, Gross Change in fair value of derivative instruments, net Gain (Loss) on Derivative Instruments, Net, Pretax Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Increase in operating right of use asset Increase (Decrease) In Operating Lease, Right-of-Use Asset, After Accumulated Amortization Increase (Decrease) In Operating Lease, Right-of-Use Asset, After Accumulated Amortization Issuance of Class A common stock for vesting of equity awards (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Number of natural gas producers Number Of Natural Gas Producers Number Of Natural Gas Producers 2026, finance lease Finance Lease, Liability, to be Paid, Year Three Notional quantity per year Notional Quantity per Year (“MWh”) Derivative, Nonmonetary Notional Amount, Energy Measure Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Commodity Contract, Contract One Commodity Contract, Contract One [Member] Commodity Contract, Contract One Change in redemption value of Redeemable non-controlling interests Temporary Equity, Accretion to Redemption Value, Adjustment Cancellation of fractional shares on warrant exchange (in shares) Forfeiture On Shares, Issued, Warrant Exchange Forfeiture On Shares, Issued, Warrant Exchange Annual risk free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Amortization expense Amortization of Intangible Assets Schedule of Preferred Units [Table] Partners' Capital, Master Limited Partnership, Preferred Unit [Table] Financing costs paid to other third parties Payments of Financing Costs Non-US Non-US [Member] Liabilities [Abstract] Liabilities [Abstract] Accounting Policies [Abstract] Revenues: Revenues: Revenues [Abstract] Leasehold improvements Leasehold Improvements [Member] Net (loss) income attributable to redeemable non-controlling interests Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Swaption Swaption [Member] Current Fiscal Year End Date Current Fiscal Year End Date Discount based on incremental borrowing rate, operating lease Lessee, Operating Lease, Liability, Undiscounted Excess Amount Thereafter Operating And Finance Lease Liability, To Be 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