Cover [Abstract] Amendment Flag Current Fiscal Year End Date Document Period End Date Entities [Table] Entity [Domain] Entity Information [Line Items] Entity Address, State or Province Entity Current Reporting Status Entity Filer Category Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Legal Entity [Axis] Document Type Entity Interactive Data Current Entity Shell Company Entity Emerging Growth Company Entity Ex Transition Period Entity Small Business Operating lease future minimum payments before adoption of ASC 842 [Abstract] Award Type [Axis] Significant accounting policies [Abstract] ASU 2016-02 [Member] Accounting Standards Update 2016-02 [Member] Accounts payable Accrued liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Receivables, net of allowances of $0 and $0, respectively Accounts Receivable, after Allowance for Credit Loss, Current Accrued bonuses Accrued liabilities Total accrued liabilities Accrued Liabilities, Current Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated other comprehensive loss Accumulated Other Comprehensive (Loss) Income [Member] Weighted average remaining amortization period for intangible assets Adjustments for: Adjustments for New Accounting Pronouncements [Axis] Recognized compensation expense Allowances for receivables Accounts Receivable, Allowance for Credit Loss, Current Amortization Amortization of deferred financing costs Amortization of debt issuance costs Antidilutive Securities [Axis] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities, Name [Domain] Anti-dilutive securities excluded from computation of diluted weighted average shares outstanding (in shares) Assets [Abstract] Assets, Fair Value Disclosure [Abstract] Total Assets, Fair Value Disclosure Assets Assets [Abstract] Total assets Assets Total current assets Assets, Current Current assets Investment in equity securities Available-for-sale Securities, Equity Securities Basis of presentation and principles of consolidation Basis of Accounting, Policy [Policy Text Block] Finance leases, net Capital Leases, Lessor Balance Sheet, Net Investment in Direct Financing Leases, Noncurrent Capitalized contract costs Cost to fulfill (Note 4) Other noncurrent assets Capitalized Contract Cost, Net, Noncurrent Capitalized Contract Cost [Abstract] Other current assets Capitalized Contract Cost, Net, Current Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Cash, cash equivalents and restricted cash - end of period Cash, cash equivalents and restricted cash - beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents Net increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Class of Stock [Domain] Commitments and contingences (Note 18) Legal and contingencies Commitments and contingencies [Abstract] Commitments and contingencies Class B [Member] Common Stock [Member] Class A [Member] Class A [Member] Common stock, shares issued (in shares) Shares outstanding (in shares) Shares outstanding (in shares) Common stock Comprehensive loss attributable to stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive loss attributable to non-controlling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Construction in progress Balance at beginning of period Balance at end of period Construction in Progress, Gross Construction in Progress [Member] Accrued construction costs Contract liability Contract with Customer, Liability Amounts included in contract liability at the beginning of the period Contract with Customer, Asset and Liability [Abstract] Contract assets - current Contract with Customer, Asset, Net, Current Contract asset (Note 4) Contract assets - non-current Contract with Customer, Asset, Net, Noncurrent Total contract assets Contract with Customer, Asset, after Allowance for Credit Loss Contract with Customer, Asset and Liability Cost of sales Cost of Sales [Member] Total operating expenses Costs and Expenses Cumulative effect of accounting change (ASC 842) Adjustments to retained earnings, net of tax Adjustment to retained earnings Other Revenue Disaggregation of Revenue [Abstract] Increase in interest rate Increase in interest rate Maturity period Debt Instrument, Term Debt instrument, basis spread on variable rate Variable interest rate Debt [Abstract] Debt [Member] Debt [Member] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Outstanding borrowings Debt Instrument [Line Items] Debt Instrument, Name [Domain] Aggregate principal amount Fixed interest rate Debt Instrument, Interest Rate, Stated Percentage Fees paid Debt maturity date Maturity date Debt instrument, frequency of periodic payment Frequency of payments Term loan facility Debt, Current Debt instrument, periodic payment Deferred tax assets, net Deferred Income Tax Assets, Net Deferred tax liabilities, net Unamortized deferred financing cost Remaining unamortized deferred financing costs Unamortized deferred financing cost Deferred taxes Deferred tax asset Depreciation and amortization Depreciation Depreciation and amortization Depreciation, Depletion and Amortization Derivative liability Share-based compensation [Abstract] Share-based compensation Share-based Payment Arrangement [Text Block] Amounts due from affiliates Due from Affiliates Due from affiliates (Note 21) Due from Affiliate, Current Amount due to affiliates Amounts due to affiliates Due to affiliates Earnings per share Net loss per share - basic and diluted (in dollars per share) Net loss per share - basic and diluted (in dollars per share) Earnings per share [Abstract] Statutory tax rate Effective tax rate Effective Income Tax Rate Reconciliation, Percent Unrecognized compensation cost Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Weighted-average remaining vesting period of non-vested stock (in years) LNG and natural gas inventory Energy Related Inventory, Natural Gas Liquids Investment cost Equity Securities, FV-NI, Cost Investment in equity securities Fair value Equity Securities, FV-NI Equity Component [Domain] Unrealized (loss) gain Equity Securities, FV-NI, Unrealized Gain (Loss) Shannon Equity Agreement [Member] Fair value [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair value Financial Assets and Financial Liabilities Level 1 [Member] Level 3 [Member] Level 2 [Member] Federal Funds Rate [Member] Current finance leases, net Non-current finance leases, net Financial Instrument [Axis] Definite-Lived Intangible Assets, Gross Carrying Amount Definite-Lived Intangible Assets, Net Carrying Amount Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Major Class Name [Domain] Definite-Lived Intangible Assets, Accumulated Amortization Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets by Major Class [Axis] Definite-Lived Intangible Assets, Weighted Average Life Unrealized gain on currency translation Partial rebate from legal proceeding Loss on extinguishment of debt, net Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Intangible assets [Abstract] Income Approach [Member] Income taxes [Abstract] Income Statement Location [Axis] Income Statement Location [Domain] Loss before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) [Abstract] Loss before Income Taxes [Abstract] Income taxes Income Tax Disclosure [Text Block] Tax (benefit) expense Tax expense/(benefit) Change in value of Investment in equity securities Increase (Decrease) in Equity Securities, FV-NI Increase in accounts payable/accrued liabilities (Decrease) Increase in amounts due to affiliates (Increase) Decrease in other assets Increase (Decrease) in Other Operating Assets Decrease (Increase) in inventories Increase (Decrease) in Inventories (Decrease) in other liabilities Decrease (Increase) in receivables Increase (Decrease) in Receivables Increase (Decrease) in Stockholders' Equity [Roll Forward] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets, Carrying Amount Total Intangible Assets, Gross Carrying Amount Intangible assets, net Total Intangible Assets, Net Carrying Amount Intangible Assets, Net (Excluding Goodwill) Intangible assets Intangible Assets, Net [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] Accrued interest Interest expense on note payable Capitalized interest Interest Expense Interest Income and Interest Expense Disclosure [Table Text Block] Interest costs capitalized Interest Costs Capitalized Total interest costs Interest Costs Incurred Interest expense Interest expense Interest per contractual rates Interest costs [Abstract] Interest Expense, Debt [Abstract] Interest Rate Floor [Member] Inventory [Abstract] Inventory adjustments Inventory Automotive diesel oil inventory Inventory Total inventory Inventory, Net Investment in equity securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investment in equity securities [Abstract] IPO [Member] LIBOR [Member] Operating lease, payments, fiscal year maturity [Abstract] Total Lessor, Operating Lease, Payments to be Received Thereafter Lessor, Operating Lease, Payments to be Received, Thereafter 2023 Lessor, Operating Lease, Payments to be Received, Four Years 2021 Lessor, Operating Lease, Payments to be Received, Two Years Reminder of 2020 Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year 2024 Lessor, Operating Lease, Payments to be Received, Five Years 2022 Lessor, Operating Lease, Payments to be Received, Three Years Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Total lease payments Future Payments Due under Operating Leases Operating lease cost [Abstract] Lessee, Operating Lease, Description [Abstract] Due remainder of 2020 Less: effects of discounting 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two Long-term Debt, Current and Noncurrent [Abstract] Long-term Debt, Current and Noncurrent [Abstract] Land and Building [Member] Land [Member] Capitalized lease cost Components of Operating Lease Costs Lease expense Leasehold Improvements [Member] Leases [Abstract] Liabilities [Abstract] Liabilities, Fair Value Disclosure [Abstract] Total Financial and Nonfinancial Liabilities, Fair Value Disclosure Liabilities Liabilities [Abstract] Total liabilities Liabilities Total liabilities and stockholders' equity Liabilities and Equity Current liabilities Total current liabilities Liabilities, Current Uncertain tax positions Outstanding principal amount Total debt Long-term Debt Debt Long-term Debt [Text Block] Non-current portion of debt Long-term debt Long-term Debt, Excluding Current Maturities Current portion of debt Long-term Debt, Current Maturities Materials, supplies and other Materials, Supplies, and Other Market Approach [Member] Members' Capital [Member] Non-controlling interest Stockholders' Equity Attributable to Noncontrolling Interest Minority interest percentage in exchange for cash consideration Organization Numerator [Abstract] Net Income (Loss) Attributable to Parent [Abstract] Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from investing activities Cash flows from operating activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net loss attributable to stockholders Net Income (Loss) Attributable to Parent Cash flows from financing activities Less: net loss attributable to non-controlling interests Net loss attributable to non-controlling interest Net Income (Loss) Attributable to Noncontrolling Interest Transition adjustment New Accounting Pronouncements or Change in Accounting Principle [Line Items] Adjustments for New Accounting Pronouncement [Member] Adoption of new and revised standards [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] Adoption of new and revised standards Supplemental disclosure of non-cash investing and financing activities: Note payable due Number of operating segments Issuance of Class A shares in the IPO, net of underwriting discount and offering costs Noncontrolling Interest, Increase from Subsidiary Equity Issuance Non-controlling Interest [Member] Gas Terminals Structure [Member] Operating Leased Assets [Line Items] Operations and Maintenance [Member] Future minimum payments of operating lease liability [Abstract] Weighted-average remaining lease term Right of use asset, net Right-of-use asset Fixed lease cost Rental expense Weighted average discount rate Operating loss Operating Income (Loss) Current lease liabilities Non-current lease liabilities Operating cash outflows for operating lease liabilities Operating expenses Operating Expenses [Abstract] Lease liability Present value of lease liabilities 2021 Operating Leases, Future Minimum Payments, Due in Two Years 2024 Operating Leases, Future Minimum Payments, Due in Five Years 2023 Operating Leases, Future Minimum Payments, Due in Four Years Operating leases, rent expense [Abstract] Operating Leases, Rent Expense, Net [Abstract] 2022 Operating Leases, Future Minimum Payments, Due in Three Years Total 2020 Thereafter Organization [Abstract] Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Other Other Noncash Income (Expense) Other Other non-current assets [Abstract] Other current assets Total other non-current assets Other non-current assets Other Assets, Noncurrent Other comprehensive loss: Unrealized loss on currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Other current liabilities Other expense (income), net Other Nonoperating Income (Expense) Other long-term liabilities Other accrued expenses Accrued liabilities [Abstract] Payments related to tax withholdings for share-based compensation Payment, Tax Withholding, Share-based Payment Arrangement Payment of deferred financing costs Payments of Financing Costs Payment of offering costs Underwriting discounts and commissions Payments of Stock Issuance Costs Capital expenditures Payments to Acquire Property, Plant, and Equipment Performance Share Units [Member] Gas Pipelines [Member] Prepaid expenses and other current assets [Abstract] Prepaid expenses and other current assets Total prepaid expenses and other expenses Prepaid expenses Principal payments received on finance lease, net Proceeds from borrowings of debt Proceeds from Issuance of Medium-term Notes Proceeds from issuance of bonds Proceeds from IPO Net proceeds from initial public offering Cash received from settlement of cases Initial borrowing amount Net loss Net loss Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Property, plant and equipment, gross Accumulated depreciation Property, Plant and Equipment, Other, Accumulated Depreciation Property, plant and equipment, net Total property, plant and equipment, net Property, Plant and Equipment, Other, Net Property, Plant and Equipment [Line Items] Property, plant and equipment, net Property, Plant and Equipment Disclosure [Text Block] Property Subject to or Available for Operating Lease [Axis] Property, Plant and Equipment, Net Property, Plant and Equipment [Table Text Block] Property, plant and equipment, net [Abstract] Property Subject to or Available for Operating Lease [Domain] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, plant and equipment Property, Plant and Equipment, Net [Abstract] Property, Plant and Equipment, Net, by Type [Abstract] Right-of-use assets obtained in exchange for new operating leases Related party transactions [Abstract] Related Party Transaction [Line Items] Related party transaction [Abstract] Related Party [Axis] Charter costs Administrative and general expenses Related party transactions Related Party [Domain] Repayment of debt Repayments of Debt Restricted cash Total restricted cash Restricted Cash Restricted cash [Abstract] Restricted cash Non-current restricted cash Restricted Cash, Noncurrent Unvested RSU [Member] Restricted Stock Units [Member] Restricted cash Current restricted cash Accumulated Deficit [Member] Accumulated deficit Revenue recognition [Abstract] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue recognition Revenue from contracts with customers [Abstract] Revenue, Performance Obligation Satisfied over Time [Abstract] Remaining performance obligation, expected timing of satisfaction, period Remaining performance obligation Revenue from contracts with customers Remaining Performance Obligations Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Operating revenue Revenue from Contract with Customer, Excluding Assessed Tax Revenues Revenues [Abstract] Total revenues Revenues Sale of Stock [Domain] Thereafter Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter Remainder of 2020 2022 2021 Less: Imputed interest Sales-type and Direct Financing Leases, Lease Receivable, Undiscounted Excess Amount Total Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received Financing leases, lease receivable, fiscal year maturity [Abstract] Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract] Present value of total lease receipts Sales-type and Direct Financing Leases, Lease Receivable 2023 2024 Inventory Schedule of Inventory, Current [Table Text Block] Schedule of Operating Leased Assets [Table] Future Annual Minimum Lease Payments for Operating Leases Schedule of Finite-Lived Intangible Assets [Table] RSU Activity Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Long-term Debt Schedule of Long-term Debt Instruments [Table Text Block] Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share Effects Presented in Anti-dilutive Other Non-Current Assets Property, Plant and Equipment [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Selling, General and Administrative Expenses [Member] Selling, general and administrative Weighted Average Grant Date Fair Value Per Share [Abstract] 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 Share-based Payment Arrangement, Noncash Expense Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award [Line Items] 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 Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Number of Shares [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Non-vested RSUs, ending balance (in shares) Non-vested RSUs, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Non-vested RSUs, beginning balance (in dollars per share) Non-vested RSUs, 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 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 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 Equity Award [Domain] Shares withheld from employees related to share-based compensation, at cost (in shares) Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Effects of reorganization transactions (in shares) Shares, Issued Balance (in shares) Balance (in shares) Shares outstanding (in shares) Shares, Outstanding IPO price per share (in dollars per share) Short-term lease cost Significant accounting policies Condensed Consolidated Balance Sheets (Unaudited) [Abstract] Class of Stock [Axis] Equity Components [Axis] Statement [Line Items] Statement [Table] Condensed Consolidated Statements of Cash Flows (Unaudited) [Abstract] Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) [Abstract] Issuance of shares for vested RSUs (in shares) Issuance of Class A shares in the IPO, net of underwriting discount and offering costs (in shares) Shares issued in initial public offering (in shares) Shares issued (in shares) Issuance of shares for vested RSUs Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Issuance of Class A shares in the IPO, net of underwriting discount and offering costs Share-based compensation expense Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Total stockholders' equity attributable to NFE Stockholders' Equity Attributable to Parent Total stockholders' equity Balance Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Subsequent events Subsequent events [Abstract] Sale of Stock [Axis] Subsidiary, Sale of Stock [Line Items] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Financial Instruments [Domain] Treasury shares (in shares) Shares withheld from employees related to share-based compensation, at cost Treasury Stock, Value, Acquired, Cost Method Treasury shares, 583,508 shares as of March 31, 2020, at cost; 0 shares at December 31, 2019, at cost Treasury Stock, Value Treasury Shares [Member] Type of Adoption [Domain] Unbilled receivables included in other current assets Unbilled receivables Unbilled Contracts Receivable Gain from derivative liability fair value adjustment Unrealized Gain (Loss) on Derivatives Use of estimates Operations and maintenance Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Variable Rate [Domain] Variable lease cost Variable Rate [Axis] Weighted average number of shares outstanding - basic and diluted (in shares) Weighted-average shares-basic and diluted (in shares) Denominator [Abstract] Weighted Average Number of Shares Outstanding, Diluted [Abstract] Fortress Affiliate [Member] Maximum [Member] Minimum [Member] Ownership [Axis] Ownership [Domain] Product and Service [Domain] Product and Service [Axis] Statistical Measurement [Domain] Statistical Measurement [Axis] Title of Individual [Domain] Title of Individual [Axis] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Income Tax Disclosure [Line Items] Disclosure of information about income taxes. Income Tax Disclosure [Table] Supplemental Cash Flow Information Related to Leases [Abstract] Supplemental cash flow information related to leases [Abstract] Operating lease, noncancelable lease term of vessel. Lessee Operating Lease Noncancelable Vessel Lease Term Noncancelable term of vessel lease Amount of fixed payments for lease and non lease components. Fixed Payments for Lease and Non Lease Components Fixed payments for lease and non-lease components Name of the property. Terminal and Power Plant Equipment [Member] Support equipment and facilities used in oil and gas producing activities to liquified LNG. LNG Liquefaction Facilities [Member] LNG Liquefaction Facilities [Member] Name of the facility. CHP Facilities [Member] Assets commonly used in the storage and transportation of goods and other tangible personal property, nonconsumable in nature, with finite lives used to produce goods and services. ISO Containers and Other Equipment [Member] ISO Containers and Other Equipment [Member] The number of shares available in equity securities held at the balance sheet date that are not considered held to maturity or trading securities. Equity Securities Number of Shares Number of shares (in shares) Amount of cash restricted as to withdrawal or usage which is not reported separately as of balance sheet date. Other Restricted Cash Other restricted cash Cash collateral held for performance under customer agreements which is restricted as to withdrawal or usage as of balance sheet date. Cash Collateral for Performance Under Customer Agreements Collateral for performance under customer agreements Cash collateral held for secured and non-secured letter of credit and performance bonds which is restricted as to withdrawal or usage as of balance sheet date. Cash Collateral for Letter of Credit and Performance Bonds Collateral for letters of credit and performance bonds Cash collateral held for future purchases of Liquefied Natural Gas (LNG) which is restricted as to withdrawal or usage as of balance sheet date. Cash Collateral for Liquefied Natural Gas Collateral for LNG purchases Tabular disclosure of the prepaid expenses and other current assets. Schedule of Prepaid Expenses And Other Current Assets [Table Text Block] Prepaid Expenses and Other Current Assets Tabular disclosure of the reconciliation of construction in progress. Schedule of Construction in Progress Reconciliation [Table Text Block] Construction in Progress Activity Employee is serving on the company's payroll and non-employee is a sole director of the Company's commercial manager. Employee and Non-employee [Member] Employees and Non-employees [Member] Primary financial statement caption encompassing operations and maintenance expenses. Operations and Maintenance Expense [Member] Operations and Maintenance [Member] Amount of reversal for expense for award under share-based payment arrangement. Reversal of compensation expense Amount of increase in constructions in progress during the period. Construction in Progress, Additions Additions Amount of transfers into property plant and equipment, net during the period. Construction in Progress, Transferred to Property Plant and Equipment, Net Transferred to property, plant and equipment, net (Note 12) Construction in Progress [Roll Forward] Construction in Progress [Roll Forward] The entire disclosure for construction in progress. Construction in Progress [Text Block] Construction in progress Construction in Progress [Abstract] Property, Plant and Equipment Subjected to Operating Lease [Abstract] Disclosure of information about lessor's leases. Lessor [Member] Prepayment for LNG inventories. Prepaid Liquefied Natural Gas Prepaid LNG The entire disclosure for prepaid expenses and other current assets. Prepaid Expenses And Other Current Assets Disclosure [Text Block] Prepaid expenses and other current assets Fair value of equity agreement. Equity Agreement Fair Value Disclosure Equity agreement Amount of lease cost related to cost of sales. Lease Cost Related Cost of Sales Lease cost - Cost of Sales Amount of lease cost related to selling, general and administrative expenses Lease Cost Related to Selling, General and Administrative Expenses Lease cost - Selling, general and administrative Amount of lease cost related to operations and maintenance. Lease Cost Related to Operations and Maintenance Lease cost - Operations and maintenance Tabular disclosure of supplemental cash flow information related to operating and finance leases. Lessee Operating and Finance Lease Supplemental Cash Flow Information [Table Text Block] Supplemental Cash Flow Information Related to Leases Tabular disclosure of maturity of undiscounted cash flows to be received by lessor on annual basis for financing and operating lease. Lessor Financing and Operating Lease Payments To Be Received Maturity [Table Text Block] Operating and Financing Lease Payments to be Received Tabular disclosure of property, plant and equipment subject to operating leases. Property, Plant and Equipment Subject to Operating Leases [Table Text Block] Property, Plant and Equipment Subject to Operating Leases Loss from pricing or market conditions arising from an obligation under a purchase commitment. Loss on Mitigation Sales Loss on mitigation sales This element represents activity related to revenue of power and steam. Power and Steam [Member] Revenue realized in the period on operating leases, direct financing leases and development services. Other revenues Other revenue Revenue Recognized [Abstract] Revenue recognized in the period from [Abstract] This element represents activity of lease and other related revenue. Lease and Other Revenue [Member] This element represents activity related to revenue of development services. Development Services [Member] Trade receivable related revenue from contract with customers. Revenue From Contract With Customer, Trade Receivables Receivables, revenue from contracts with customers Amount of tangible personal property tax paid. Tangible Personal Property Tax Paid Tangible personal property tax paid The entire disclosure for the lessee and lessor entity's leasing arrangements. Leases of Lessee and Lessor Disclosure [Text Block] Leases A wholly owned subsidiary of the Company. New Fortress Energy South Power Holdings Limited [Member] South Power [Member] A debt instrument issued to financial institution which is not secured or without any collateral. Senior Unsecured Bonds [Member] Senior Unsecured Bonds [Member] A debt instrument issued to financial institution which is secured by collateral. Senior Secured Bonds [Member] Senior Secured Bonds [Member] Debt instrument which is secured by pledging with a collateral and unsecured is without any collateral. Senior Secured Bonds and Senior Unsecured Bonds [Member] Refers to the period upon which no principal payments will be due in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Debt Instrument Principal Non Payments Due Period Non-payment of principal due period Percentage of principal payments required to be paid on a quarterly basis after seven years of principal payments. Debt Instrument, Quarterly Principal Payments Percentage for Period One Percentage of quarterly principal payment Amount of additional bonds will be issued to financial institution upon completion of certain conditions. Debt Instrument, Additional Issuable Amount After Restrictions Debt instrument, issuable upon completion of certain conditions Maximum amount of bonds will be issued to financial institution. Debt Instrument, Maximum Issuable Amount Debt instrument, issuable Amount of debt service reserve account which is restricted as to withdrawal or usage as of balance sheet date. Debt Service Reserve Account Debt service reserve account Percent of balloon payments due upon maturity of the debt. Debt Instrument, Balloon Payments Due Percentage Upon Maturity Percentage of balloon payment due upon maturity Senior Secured and Unsecured Bonds [Abstract] Senior Secured and Unsecured Bonds [Abstract] South Power Bonds [Abstract] A debt instrument issued to financial institution which is secured by collateral and due in December 2034. Senior Secured Bonds, due December 2034 [Member] Senior Secured Bonds, due December 2034 [Member] An unsecured debt instrument issued to financial institution which is due in September 2036. Senior Unsecured Bonds, due September 2036 [Member] Senior Unsecured Bonds, due September 2036 [Member] A debt instrument issued to financial institution which is secured by collateral and due in September 2034. Senior Secured Bonds, due September 2034 [Member] Senior Secured Bonds, due September 2034 [Member] Name of the entity. Fortress Investment Group LLC [Member] Fortress [Member] Name of the related party. DevTech Investment [Member] Name of the affiliate entity. Florida East Coast Industries [Member] The affiliated entities of fortress. Fortress Affiliated Entities [Member] The percentage of note payable due from affiliate purchased by related party. Percentage of Note Payable Purchased by Related Party Percentage of note payable purchased by affiliate The entire disclosure for cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Restricted Cash [Text Block] Restricted cash Amount tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. Cumulative Effect of New Accounting Principle in Period of Adoption, Tax Adjustments to retained earnings, tax Retained earnings net of taxes Adoption of New Accounting Policies [Abstract] Adoption of New and Revised Standards [Abstract] Amount of the fee that accompanies borrowing money under the debt instrument. Debt Instrument, Origination and Other Fees Origination, structuring and other fees amount Credit Agreement [Abstract] A credit agreement which is due in January 15, 2023. Credit Agreement Due January15, 2023 [Member] Credit Agreement [Member] Credit Agreement, due January 15, 2023 [Member] Tabular disclosure of amounts due to/from Affiliates. Schedule of Amounts Due to and Due from Affiliates [Table Text Block] Due to/from Affiliates Refers to the number of performance obligations from contracts with customers. Number of Performance Obligations Number of performance obligations This element represents percentage of economic interest. Percentage of Economic Interest Percentage of economic interest in NFI This element represents percentage of voting interest. Percentage Of Voting Interest Percentage of voting interest in NFE This element represents percentage of entity for both voting and non economic interests. Percentage of Voting and non-Economic Interest Percentage of voting and non-economic interest Basis of presentation and principles of consolidation [Abstract] Line item represents information about all significant accounting policies of the reporting entity. Significant accounting policies [Line Items] Significant accounting policies [Line Items] Disclosure of information about all significant accounting policies of the reporting entity. Schedule of Significant accounting policies [Table] Significant accounting policies [Table] Term loan facility from syndicate of two lenders due on January 21, 2020. Term Loan Facility due January 21, 2020 [Member] Term Loan Facility, due January 21, 2020 [Member] Number of extensions for maturity date allowed. Number of Extensions for Maturity Date Number of extensions for maturity date Floor rate in debt instrument. Floor Rate [Member] Floor Rate [Member] Percentage of fee payable in outstanding principal for extension of maturity date. Percentage of Fee Payable in Outstanding Principal for Extension of Maturity Date Percentage of fee payable in outstanding principal for extension of maturity date Number of lenders from which the new term loan facility borrowed. Number of Lenders Number of lenders Extended maturity period per extension, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Debt Instrument, Extended Maturity Period Additional extended maturity period Term of interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Debt Instrument Term of Variable Rate Debt instrument, term of variable rate Percentage variable rate spread on the debt instrument. Interest Rate Plus Spread Interest rate plus spread Term Loan Facility [Abstract] Term Loan Facility [Abstract] Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment and disclosure of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity, by either major class or business segment. Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Table Text Block] Composition of Intangible Assets Contractual agreement that stipulates right to use of nonpossessory asset. Easements [Member] Contractual agreement that stipulates the lessee pay the lessor for use of an asset. Shannon Leases and Permits [Member] Shannon LNG Leases and Permits [Member] Ratio applied to the conversion of stock split related to shares effected in connection with IPO, for example but not limited to, one share converted to two or two shares converted to one. Stockholders' Equity Note, Stock Split, Conversion Ratio, IPO Stock split issued and outstanding shares effected in connection with IPO Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract] Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share Effects Presented in Anti-dilutive [Abstract] Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due after one year or the normal operating cycle, if longer. Unbilled Receivables NonCurrent Unbilled receivables (Note 4) Unbilled receivables included in other non-current asset Amount of upfront payments to customers. Upfront Payments To Customers Non Current Upfront payments to customers This elements represents the number of upfront payments the entity entered into, related to certain natural gas sales contracts. Number of sales contracts Amount of nonrefundable deposit expected to be realized or consumed after one year or normal operating cycle, if longer. Nonrefundable Deposit, Noncurrent Nonrefundable deposit Amount of port access rights assets and initial lease costs expected to be realized or consumed after one year or normal operating cycle, if longer. Port Access Rights and Initial Lease Costs, Noncurrent Port access rights and initial lease costs The changes in accounts payable and accrued liabilities associated with accrued construction in progress costs and property, plant and equipment reported in supplemental disclosure of non-cash investing and financing activities. Changes in Accounts Payable and Accrued Liabilities Associated With Construction in Progress Costs and Property Plant and Equipment Changes in Accounts payable and accrued liabilities associated with construction in progress and property, plant and equipment additions Amount of increase (decrease) in operating lease liabilities. Increase Decrease In Operating Lease Liabilities (Decrease) in lease liabilities Amount of increase (decrease) in operating lease right-of-use assets. Operating Lease Right Of Use Assets Decrease in right of use asset, net The entire disclosure for other non-current assets. Other Non-current Assets [Text Block] Other non-current assets Equity impact of the value related to the effects of the reorganization transactions. Effects of Reorganization Transactions Value Effects of the reorganization transactions Equity impact of the shares related to the effects of the reorganization transactions. Effects of Reorganization Transactions Shares Effects of reorganization transactions (in shares)