Weighted-Average Exercise Price, beginning balance (in dollars per share) Weighted-Average Exercise Price, ending balance (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Option, Nonvested, Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Option, Nonvested, Exercise Price Accounts Payable Accounts Payable [Member] Commodity Contract Commodity swap contracts Commodity Contract [Member] Equity Method Investment Entities Equity Method Investment Entities [Member] Equity Method Investment Entities Award Timing Predetermined Award Timing Predetermined [Flag] Exercise Year 2 Exercise Year 2 [Member] Exercise Year 2 Entity File Number Entity File Number Additional paid-in capital Additional Paid-in Capital [Member] Contract assets: Contract with Customer, Asset, after Allowance for Credit Loss, Current [Abstract] Tabular List, Table Tabular List [Table Text Block] EagleBank EagleBank [Member] EagleBank Accounting 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Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from issuance Proceeds from Issuance of Debt Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Fortistar and Costar Fortistar and Costar [Member] Fortistar and Costar Net unrealized loss on cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Letter of Credit Letter of Credit [Member] Interest expense on finance leases Finance Lease, Interest Expense Document Fiscal Period Focus Document Fiscal Period Focus Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Award Timing Method Award Timing Method [Text Block] Award Type [Axis] Award Type [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Investment, Name [Domain] Investment, Name [Domain] Trading Symbol Trading Symbol 2029, operating lease Lessee, Operating Lease, Liability, to be Paid, Year Four Earnout Liabilities Business Combination [Policy Text Block] Parts inventory Inventory, Parts and Components, Net of Reserves Entity Address, City or Town Entity Address, City or Town Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Unvested RSUs Restricted Stock Restricted Stock Units (RSUs) [Member] Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Corporate And Eliminations Corporate And Eliminations [Member] Corporate And Eliminations Investment tax credit, purchase agreement Investment Tax Credit, Purchase Agreement Investment Tax Credit, Purchase Agreement Entity Emerging Growth Company Entity Emerging Growth Company 2028 Long-Term Debt, Maturity, Year Three Stock options, beginning balance (in shares) Stock options, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Paid-in-kind interest income Paid-In-Kind Interest Income Paid-In-Kind Interest Income Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Less: unamortized debt issuance costs Debt Issuance Costs, Net One Vendor One Supplier [Member] One Supplier Class C common stock Class C common stock Common Class C [Member] Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding V E C Partners Inc Dba C E I Builders C E I V E C Partners Inc Dba C E I Builders C E I [Member] 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Assets, Current Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Sunoma Loan, net of debt issuance costs (includes $17,515 and $18,373 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Sunoma Loan, net of debt issuance costs Long-Term Construction Loan, Noncurrent Class B common stock Class B common stock Common Class B [Member] Document Information [Line Items] Document Information [Line Items] Dividends on redeemable preferred non-controlling interests Temporary Equity, Increase From Dividend Distribution, Redeemable Preferred Non-Controlling Interests Temporary Equity, Increase From Dividend Distribution, Redeemable Preferred Non-Controlling Interests Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] 2025 Operating And 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Total Shareholder Return Vs Peer Group [Text Block] Number of Units, beginning balance (in shares) Number of Units outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Paragon Paragon [Member] Paragon Granted (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants in Period, Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants in Period, Exercise Price Equity Method Investments and Joint Ventures [Abstract] Subsequent Event Subsequent Event [Member] Equity Method Investment Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Money Market Funds Money Market Funds [Member] 2029, finance lease Finance Lease, Liability, to be Paid, Year Four Class B Ordinary Share Class B Ordinary Share [Member] Class B Ordinary Share Equity Components [Axis] Equity Components [Axis] Entity Ex Transition Period Entity Ex Transition Period Standby Letters of Credit Standby Letters of Credit [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Entity Address, State or Province Entity Address, State or Province Repayment of principal portion of finance lease liabilities Finance Lease, Principal Payments Antidilutive Security, Excluded EPS 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One Entity Address, Address Line Two Entity Address, Address Line Two Per share amounts: Net income (loss) per share of Class A common stock Earnings Per Share, Basic And Diluted EPS [Abstract] Earnings Per Share, Basic And Diluted EPS Project development and startup costs Research and Development Expense Accumulated other comprehensive income AOCI Attributable to Parent [Member] Withheld for settlement of taxes (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Weighted-Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Exercise Price [Abstract] Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Exercise Price Aggregate offering price Sale of Stock, Consideration Received Per Transaction Ownership [Axis] Ownership [Axis] Fair Value as of Grant Date Award Grant Date Fair Value Schedule of Stock Option Activity Share-Based Compensation Arrangements 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be Paid, Year Two Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Other Income Other Income [Member] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Parts sales Parts [Member] Parts Non-PEO NEO Non-PEO NEO [Member] Standby letters of credit outstanding balance Letters of Credit Outstanding, Amount Proceeds from sale of short-term investments Payments for (Proceeds from) Short-Term Investments Noncontrolling interest Noncontrolling Interest in Variable Interest Entity Award Type [Domain] Award Type [Domain] 2026, operating lease Lessee, Operating Lease, Liability, to be Paid, Year One Gain on net periodic settlements Derivative Instruments Not Designated As Hedging Instruments, Net Periodic 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recognized included in contract liabilities Contract with Customer, Liability, Revenue Recognized Right-of-use assets arising from lease modifications Noncash, Right-Of-Use Asset From Modification Of Lease Noncash, Right-Of-Use Asset From Modification Of Lease Accrued payroll Increase (Decrease) in Employee Related Liabilities MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Weighted average exercise price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price Withheld for settlement of taxes (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Shares Withheld For Tax Withholding Obligation, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Shares Withheld For Tax Withholding Obligation, Weighted Average Grant Date Fair Value Termination written notice, term Termination Written Notice, Term Termination Written Notice, Term Revenues: Revenues [Abstract] 2025, finance lease Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Pine Bend Pine Bend [Member] Pine Bend Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax 2026 Long-Term Debt, Maturity, Year One Gain recognized in other income Gain (Loss) on Sale of Leased Assets, Net, Operating Leases 2030 Long-Term Debt, Maturity, Year Five Unvested PSUs Performance Stock Units Performance Shares [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Exercise Year 3 Exercise Year 3 [Member] Exercise Year 3 One Customer One Customer [Member] One Customer Minimum Minimum [Member] Percentage of common stock subject to vesting and forfeiture conditions Reverse Recapitalization, Percentage Of Common Stock Subject To Vesting And Forfeiture Conditions Reverse Recapitalization, Percentage Of Common Stock Subject To Vesting And Forfeiture Conditions Company Selected Measure Name Company Selected Measure Name Investment Tax Credits Income Tax Uncertainties, Policy [Policy Text Block] Borrowings Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Total derivatives Derivative Assets (Liabilities), at Fair Value, Net Diluted (in shares) Weighted average number of shares of Class A common stock - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Entity Small Business Entity Small Business Income Tax Disclosure [Abstract] Net income (loss) attributable to 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in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Operating lease liabilities - current and non-current Increase (Decrease) in Operating Lease Liability Total Stockholders' deficit Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] Net Loss Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Additional paid-in capital Additional Paid in Capital Product and Service [Axis] Product and Service [Axis] Total revenue from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Total current assets Current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Dividends on redeemable preferred non-controlling interests Temporary Equity, Dividends, Adjustment Vehicle and Equipment leases Vehicles [Member] 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 Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for taxes related to net share settlement of equity awards Payment, Tax Withholding, Share-Based Payment Arrangement Fuel Purchasing Agreements Fuel Purchasing Agreements [Member] Fuel Purchasing Agreements Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Net income (loss) attributable to Class A common stockholders Net income (loss) attributable to Class A common stockholders Net Income (Loss) Available to Common Stockholders, Basic 2027 Operating And Finance Lease Liability, To Be Paid, Year Two Operating And Finance Lease Liability, To Be Paid, Year Two Stock-based compensation Temporary Equity, Increase From Stock Based Compensation Temporary Equity, Increase From Stock Based Compensation Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Current liabilities: Liabilities, Current [Abstract] Schedule of Effect of Derivative Instruments on Statement of Operations Derivative Instruments, Gain (Loss) [Table Text Block] Redeemable preferred non-controlling interests Redeemable Preferred non-controlling interests Redeemable Preferred Noncontrolling Interest [Member] Redeemable Preferred Noncontrolling Interest Level 1 Fair Value, Inputs, Level 1 [Member] Accrued expenses and other current and non-current liabilities Increase (Decrease) in Accrued Liabilities Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Diluted (in dollars per share) Earnings Per Share, Diluted Accounts receivable, net of allowance for credit losses of $2,454 and $—, respectively (includes $25 and $435 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Accounts receivable, net Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Sponsor Earnout Awards gain Sponsor Earnout Shares [Member] Sponsor Earnout Shares RNG Facility RNG Facility [Member] RNG Facility Environmental Processing Fees Environmental Processing Fees [Member] Environmental Processing Fees Stock issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Accounts payable Increase (Decrease) in Other Accounts Payable 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 Increase (Decrease) In Temporary Equity, Amount [Roll Forward] Increase (Decrease) In Temporary Equity, Amount [Roll Forward] Increase (Decrease) In Temporary Equity, Amount Consolidation Items [Domain] Consolidation Items [Domain] Investments in Other Entities Equity Method Investments and Joint Ventures Disclosure [Text Block] Gross profit Gross Profit Tax benefit received Income Taxes Paid, Net Legal and insurance fees Legal And Insurance Fees, Investment Tax Credit Legal And Insurance Fees, Investment Tax Credit M D Digester L L C M D Digester L L C [Member] M D Digester L L C Long-term debt, gross Debt outstanding Long-Term Debt, Gross Exercise price (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Accrued payroll (includes $27 and $45 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Accrued payroll Employee-related Liabilities, Current Future minimum lease payments, operating lease Lessee, Operating Lease, Liability, to be Paid Property, plant, and equipment, net (includes $31,303 and $25,428 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Property, plant and equity, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Apollo Management Holdings, L..P. Apollo Management Holdings, L..P. [Member] Apollo Management Holdings, L..P. Distributions to non-redeemable non-controlling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Change in fair value of derivative instruments, net Gain (Loss) on Derivative Instruments, Net, Pretax Service agreements Property Management Fee Revenue Intersegment Eliminations Intersegment Eliminations [Member] Expiration Date Trading Arrangement Expiration Date Schedule of Equity Method Investments Equity Method Investments [Table Text Block] Weighted Average Remaining Contractual Term (Years), Vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Accounts receivable Increase (Decrease) in Accounts Receivable Sunoma Loan Sunoma Loan Sunoma Loan Construction Loans [Member] Series A preferred units Series A Preferred Stock [Member] Entity Current Reporting Status Entity Current Reporting Status Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Domain] Consolidated Entities [Domain] 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 Transaction [Domain] Transaction [Domain] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Site leases Site [Member] Site Current Fiscal Year End Date Current Fiscal Year End Date Equipment loan Equipment Loan [Member] Equipment Loan Expiration term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Service Agreements Service Agreements [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Total commodity swaps - unrealized gain (loss) Commodity swap contracts Derivative Liability Contribution by the Company Equity Method Investments, Contributions Equity Method Investments, Contributions Comprehensive income (loss) attributable to Class A common stockholders Comprehensive Income (Loss) Available To Common Stockholders Comprehensive Income (Loss) Available To Common Stockholders Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Distributions from equity method investments Distributions from return on investment in equity method investment Proceeds from Equity Method Investment, Distribution Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] 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 Antidilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Weighted average shares outstanding of Class A common stock: Weighted Average Number of Shares Outstanding, Diluted [Abstract] 2027 Long-Term Debt, Maturity, Year Two Leases Lessee, Operating Leases [Text Block] Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Measure: Measure [Axis] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Issuance of Class A common stock for vesting of equity awards Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Cost of sales Cost of Product and Service Sold 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") Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Annual risk free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Amortization of deferred financing costs Amortization of deferred financing cost Amortization of Debt Issuance Costs Entity Tax Identification Number Entity Tax Identification Number Redeemable non-controlling interests Redeemable non-controlling interests Redeemable Noncontrolling Interest [Member] Redeemable Noncontrolling Interest Common stock, shares issued (in shares) Common Stock, Shares, Issued Sunoma Loan Sunoma Loan [Member] Sunoma Loan 2029 Long-Term Debt, Maturity, Year Four Accrued capital expenses Accrued Capital Expenses, Current Accrued Capital Expenses, Current Trading 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Operation Dilutive effect of stock options and restricted stock units (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Unrealized gain on note receivable Unrealized Gain (Loss) on Investments Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] 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] 2030 and beyond, operating lease Lessee, Operating Lease, Liability, to be Paid, after Year Five Restricted cash - current (includes $979 and $972 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Restricted cash - current Restricted Cash, Current Related Party Transaction [Axis] Related Party Transaction [Axis] Costar Costar Partners LLC ("Costar") [Member] Costar Partners LLC ("Costar") Other long-term assets Other Noncurrent Assets [Member] Interest rate swap contracts Interest Rate Swap [Member] Financing costs paid to other third parties Payments of Financing Costs Income from equity method investments Income from equity method investments Net income from equity method investments Income from equity method investments Income (Loss) from Equity Method Investments Leases [Abstract] NextEra NextEra [Member] NextEra Interest income Interest Income, Interest-Earning Asset Contract assets Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Current RNG Fuel RNG Fuel [Member] RNG Fuel OPAL Term Loan, net of debt issuance costs Secured Long-Term Debt, Noncurrent Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic (in dollars per share) Earnings Per Share, Basic Liabilities: Liabilities, Fair Value Disclosure [Abstract] Discount rate Measurement Input, Discount Rate [Member] Schedule of Interest Expense on Borrowings, Depreciation, Amortization and Accretion and Cash Paid for Purchases, 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related to consolidated VIEs) Other long-term liabilities Other Liabilities, Noncurrent RNG fuel RNG Fuel Renewable Natural Gas Fuel Supply Segment [Member] Renewable Natural Gas Fuel Supply Segment Less: current portion Long-Term Debt, Current Maturities Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount 2028, operating lease Lessee, Operating Lease, Liability, to be Paid, Year Three 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 Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name OPAL Term Loan and Revolving Loan OPAL Term Loan Secured Debt Secured Debt [Member] Reverse recapitalization, number of shares subject to forfeiture shares (in shares) Reverse Recapitalization, Number of Shares Subject to 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Concentration Risk Type [Axis] Concentration Risk Type [Axis] Assets: Assets, Fair Value Disclosure [Abstract] Third party construction Third Party Construction [Member] Third Party Construction 2026, finance lease Finance Lease, Liability, to be Paid, Year One Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Level 2 Fair Value, Inputs, Level 2 [Member] Investment in other entities Beginning balance Ending balance Investment in other entities Equity Method Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Related Party Related Party [Member] Sunoma Loan - current portion (includes $1,825 and $1,756 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Secured debt, current Secured Debt, Current Gain on lease termination Gain (Loss) on Termination of Lease 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 Plan Name [Axis] Plan Name [Axis] Document Information [Table] Document Information [Table] PEO PEO [Member] 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 Proceeds from OPAL Term Loan Proceeds from Issuance of Secured Debt Noncash investing and financing activities: Noncash Investing and Financing Items [Abstract] Income from equity method investments Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Changes in operating assets and liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Share price Measurement Input, Share Price [Member] OPAL Term Loan - current portion Long-Term Construction Loan, Current (Accumulated deficit) Retained Earnings Retained Earnings [Member] Share-Based Payment Arrangement [Abstract] Cash, restricted cash, and cash equivalents, beginning of period Cash, restricted cash, and cash equivalents, end of period Cash and cash equivalents and restricted cash - current and non-current Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Commodity swap contracts Derivative Asset Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Derivatives not designated as hedging instruments Not Designated as Hedging Instrument, Economic Hedge [Member] Other long-term assets Derivative Liability, Noncurrent Interest rate swap contracts Investments, Fair Value Disclosure Dividend yield Measurement Input, Expected Dividend Rate [Member] Product and Service [Domain] Product and Service [Domain] Customer Concentration Risk Customer Concentration Risk [Member] 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 Wasatch Interest Wasatch Interest [Member] Wasatch Interest Net income Net income Net income Consolidated net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Opal Fuels Opal Fuels [Member] Opal Fuels Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Draws on letters of credit Draws on standby letters of credit Proceeds from Long-Term Lines of Credit Schedule of Receivables, Contract Assets and Contract Liabilities From Contracts With Customers Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Share conversion Conversion of Stock, Amount Converted Capitalized interest Equity Method Investment, Capitalized Interest Equity Method Investment, Capitalized Interest Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Supplier [Axis] Supplier [Axis] Related Party Transactions [Abstract] Cash Flow Hedging Cash Flow Hedging [Member] Goodwill Goodwill Estimated loss from claim Loss Contingency, Estimate of Possible Loss Non-US Non-US [Member] Number of variable interest entities Number Of Variable Interest Entities Number Of Variable Interest Entities Profit Interests Profit Interests [Member] Profit Interests Warrants expiration period Warrants and Rights Outstanding, Term Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Other Performance Measure, Amount Other Performance Measure, Amount Financing fees paid Payments of Debt Issuance Costs Contract liabilities: Contract with Customer, Liability [Abstract] Capital contribution from non-redeemable non-controlling interests Noncontrolling Interest, Increase from Sale of Parent Equity Interest Related Party [Domain] Related and Nonrelated Parties [Domain] Thereafter Operating And Finance Lease Liability, To Be Paid, After Year Five Operating And Finance Lease Liability, To Be Paid, After Year Five Derivative Instrument [Axis] Derivative Instrument [Axis] Fair value measurements Fair Value of Financial Instruments, Policy [Policy Text Block] Leases Lessee, Finance Leases [Text Block] Entity [Domain] Entity [Domain] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change 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Credit Facility [Member] Partner Capital Components [Axis] Partner Capital Components [Axis] Write-offs of capitalized costs Deferred Debt Issuance Cost, Writeoff Arrangement Duration Trading Arrangement Duration Segments [Axis] Segments [Axis] Fuel Provider Agreements ("FPAs") Fuel Provider Agreements ("FPAs") [Member] Fuel Provider Agreements ("FPAs") Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Accounts receivable, related party Accounts receivable, related party Accounts Receivable, before Allowance for Credit Loss, Current Closing share price (in dollars per share) Share Price Thereafter Long-Term Debt, Maturity, after Year Five Stock-based compensation Share-Based Payment Arrangement [Text Block] Weighted-Average Exercise Price (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercisable, Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercisable, Exercise Price Assets Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Debt Instrument [Axis] Debt Instrument [Axis] Forfeited (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 Credit Facility [Domain] Credit Facility [Domain] Increase (Decrease) In Temporary Equity, Units [Roll Forward] Increase (Decrease) In Temporary Equity, Units [Roll Forward] Increase (Decrease) In Temporary Equity, Units Accrued expenses and other current liabilities Derivative Liability, Current Investment, Name [Axis] Investment, Name [Axis] Land2Gas SJI Landfill RNG LLC (“SJI LRNG”) [Member] SJI Landfill RNG LLC (“SJI LRNG”) Operating lease liabilities - non-current portion Operating Lease, Liability, Noncurrent Change in fair value of commodity swaps Unrealized Gain (Loss) On Convertible Notes Payable Unrealized Gain (Loss) On Convertible Notes Payable Depreciation, amortization, and accretion Depreciation, Amortization and Accretion, Net Entity Registrant Name Entity Registrant Name Beginning balance (in shares) Ending balance (in shares) Temporary Equity, Shares Outstanding Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Sponsor Letter Agreement Sponsor Letter Agreement [Member] Sponsor Letter Agreement Provision for bad debts Provision for Loan, Lease, and Other Losses Number of operating segments Number of Operating Segments Future minimum lease payments Operating And Finance Lease Liability, To Be Paid Operating And Finance Lease Liability, To Be Paid Schedule of Borrowings Schedule of Debt [Table Text Block] Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Related Party [Axis] Related and Nonrelated Parties [Axis] Rent - fixed compensation Rent - Fixed Compensation [Member] Rent - Fixed Compensation Service Service [Member] Other long-term liabilities Other Noncurrent Liabilities [Member] Repayments on letters of credit Repayments of Long-Term Lines of Credit Restatement Determination Date: Restatement Determination Date [Axis] Accounts Receivable Accounts Receivable [Member] Schedule of Interest Rate Swaps Schedule of Interest Rate Derivatives [Table Text Block] Interest expense Interest Expense, Debt Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Credit Agreement Credit Agreement [Member] Credit Agreement Redemption price (in dollars per share) Temporary Equity, Redemption Price Per Share Name Trading Arrangement, Individual Name Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Warrants, measurement input Warrants and Rights Outstanding, Measurement Input Aggregate principal amount Debt Instrument, Face Amount Statement of Comprehensive Income [Abstract] Name Awards Close in Time to MNPI Disclosures, Individual Name Weighted-Average Grant-Date Fair Value beginning balance (in dollars per share) Weighted-Average Grant-Date Fair Value ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Restricted cash - non-current (includes $2,528 and $2,315 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Restricted cash - non-current Restricted Cash, Noncurrent Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Comprehensive income attributable to non-redeemable non-controlling interests Other Comprehensive Income (Loss), Net of 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common stock under the ATM program, net Proceeds from issuance of common stock Proceeds from Issuance of Common Stock All Individuals All Individuals [Member] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] 2026 Operating And Finance Lease Liability, To Be Paid, Year One Operating And Finance Lease Liability, To Be Paid, Year One Purchase of property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Unrealized gain on derivative financial instruments Unrealized Gain (Loss) on Derivatives Interest capitalized Interest Paid, Capitalized, Investing Activity 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] Environmental Attributes Environmental Attributes [Member] Environmental Attributes Schedule of Commodity Swaps And Other Derivatives Schedule of Derivative Instruments [Table Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Geographical [Axis] Geographical [Axis] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Transaction Type [Axis] Transaction Type [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Brown gas sales Brown Gas [Member] Brown Gas Leases Lessor, Operating Leases [Text Block] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Parts Inventory Inventory Supplies, Policy [Policy Text Block] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Title of 12(b) Security Title of 12(b) Security Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Earnout Target Earnout Target [Member] Earnout Target Business acquisition, hourly rate fee, maximum Business Acquisition, Hourly Rate Fee, Maximum Business Acquisition, Hourly Rate Fee, Maximum Senior secured credit facility Senior Secured Credit Facility [Member] Senior Secured Credit Facility Earnings Per Share [Abstract] 2030, operating lease Lessee, Operating Lease, Liability, to be Paid, Year Five Share conversion (in shares) Conversion of stock, shares converted (in shares) Conversion of Stock, Shares Converted Total other expenses Nonoperating Income (Expense) Subsidiary, ownership percentage, parent Subsidiary, Ownership Percentage, Parent Distributions received from equity method investment Distributions from return of investment in equity method investment Proceeds from Equity Method Investment, Distribution, Return of Capital Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Interest Expense on Borrowings Interest Income and Interest Expense Disclosure [Table Text Block] Contract liabilities Increase (Decrease) in Contract with Customer, Liability Accounts payable Accounts payable Accounts payable, related party Accounts Payable, Other, Current Exercise Year [Axis] Exercise Year [Axis] Exercise Year 2030 and beyond, finance lease Finance Lease, Liability, to be Paid, after Year Five Scenario, Plan Scenario, Plan [Member] Award Timing Disclosures [Line Items] Measurement Frequency [Domain] Measurement Frequency [Domain] Interest rate during period Debt Instrument, Interest Rate During Period Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Amortization of basis difference Equity Method Investment, Amortization Of Basis Difference Equity Method Investment, Amortization Of Basis Difference Accrued expenses and other current liabilities (includes $1,008 and $974 at June 30, 2025 and December 31, 2024, respectively, related to consolidated VIEs) Accrued expenses and other current liabilities Other Accrued Liabilities, Current Weighted-Average Remaining Contractual Term (Years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Adoption Date Trading Arrangement Adoption Date Expected term Measurement Input, Expected Term [Member] Customer [Axis] Customer [Axis] Operating (loss) income Operating Income (Loss) Line of Credit Line of Credit [Member] Gain (loss) on earnout awards Business Combination, Deconsolidation And Equity Method Investments, Gain (Loss), Amount Business Combination, Deconsolidation And Equity Method Investments, Gain (Loss), Amount Accumulated deficit Retained Earnings (Accumulated Deficit) Supplier Concentration Risk Supplier Concentration Risk [Member] 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] Fair value of 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[Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Revenue Benchmark Revenue Benchmark [Member] Net proceeds from the sale of tax credits Proceeds From Sale Of Investment Tax Credits Proceeds From Sale Of Investment Tax Credits Risk free interest rate Measurement Input, Risk Free Interest Rate [Member] Leases Lessor, Leases [Policy Text Block] Change in redemption value of Redeemable non-controlling interests Temporary Equity, Accretion to Redemption Value, Adjustment Commodity swaps - realized gain (loss) Gain (Loss) on Sale of Commodity Contracts All Adjustments to Compensation All Adjustments to Compensation [Member] Electricity sales Electricity [Member] Amendment Flag Amendment Flag Sales price (in dollars per share) Sale of Stock, Price Per Share Fuel Station Services Fuel Station Services Fuel Station Services Segment [Member] Fuel Station Services Segment Class A common stock in treasury, at cost; 1,635,783 at June 30, 2025 and December 31, 2024 Treasury Stock, Common, Value Termination Date Trading Arrangement Termination Date Repayment of Sunoma Loan Repayments Of Long-Term Construction Loan Repayments Of Long-Term Construction Loan Contract assets Increase (Decrease) in Contract with Customer, Asset Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] OPAL Term Loan and Revolving Loan Opal Term Loan [Member] Opal Term Loan Basic (in shares) Weighted average number of shares of Class A common stock - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule of Basic and Diluted Net Loss Per Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Stock options vested and exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Related Party Transaction [Domain] Related Party Transaction [Domain] Subsequent Events [Abstract] Segment Reporting [Abstract] Supplier [Domain] Supplier [Domain] Debt Disclosure [Abstract] Scenario [Domain] Scenario [Domain] Operating expenses: Costs and Expenses [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Consolidated Entities [Axis] Consolidated Entities [Axis] Fuel tax credits receivable Income Taxes Receivable, Current Three Customers Three Customers [Member] Three Customers Estimated loss per contract Loss Contingency, Estimate of Possible Loss, Per Contract Loss Contingency, Estimate of Possible Loss, Per Contract Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Use of estimates Use of Estimates, Policy [Policy Text Block] Number of fuel stations Number Of Fuel Stations Number Of Fuel Stations Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Total liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Distribution to non-redeemable non-controlling interest Payments of Ordinary Dividends, Noncontrolling Interest Redeemable non-controlling interests, Redeemable preferred non-controlling interests and Stockholders' Equity (Deficit) Members' Equity Notes Disclosure [Text Block] 2030, finance lease Finance Lease, Liability, to be Paid, Year Five Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Power Purchase Agreements Power Purchase Agreements [Member] Power Purchase Agreements Preferred dividends attributable to Class A common stockholders Temporary Equity, Accretion Of Dividends, Attributable To Common Stockholders, Basic Temporary Equity, Accretion Of Dividends, Attributable To Common Stockholders, Basic Issuance of Class A common stock under the ATM program Stock Issued During Period, Value, New Issues 2028 Operating And Finance Lease Liability, To Be Paid, Year Three Operating And Finance Lease Liability, To Be Paid, Year Three Consolidation Items [Axis] Consolidation Items [Axis] Counterparty Name [Axis] Counterparty Name [Axis] Net income Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member]