Equity Method Investments and Joint Ventures [Abstract] Balance Sheet Equity Method Investment, Summarized Financial Information [Abstract] Current assets Equity Method Investment, Summarized Financial Information, Current Assets Property, plant and equipment Equity Method Investment, Summarized Financial Information, Property, Plant And Equipment Equity Method Investment, Summarized Financial Information, Property, Plant And Equipment Other assets Equity Method Investment, Summarized Financial Information, Other Assets Equity Method Investment, Summarized Financial Information, Other Assets Total assets Equity Method Investment, Summarized Financial Information, Assets Current liabilities Equity Method Investment, Summarized Financial Information, Current Liabilities Other liabilities Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities Member's Equity Equity Method Investment Summarized Financial Information, Equity Total liabilities and member's equity Equity Method Investment, Summarized Financial Information, Liabilities and Equity Income Statement Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Revenue Equity Method Investment, Summarized Financial Information, Revenue Operating expenses Equity Method Investment, Summarized Financial Information, Operating Expenses Equity Method Investment, Summarized Financial Information, Operating Expenses Net income Equity Method Investment, Summarized Financial Information, Net Income (Loss) Revenue Recognition and Deferred Revenue [Abstract] Disaggregation of revenue Disaggregation of Revenue [Table Text Block] Segment Reporting [Abstract] Schedule of operating business segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] ORGANIZATION AND BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Provision for deferred income taxes Deferred Income Tax Expense (Benefit) Depreciation, amortization and accretion Depreciation, Depletion and Amortization Excluding Amortization of Financing Costs Depreciation, Depletion and Amortization Excluding Amortization of Financing Costs Loss on disposal of property, plant and equipment Gain (Loss) on Disposition of Property Plant Equipment Unit-based compensation expense Share-based Payment Arrangement, Noncash Expense Loss (Income) from equity method investments Income (Loss) from Equity Method Investments Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable—related party Increase (Decrease) in Accounts Receivable, Related Parties Accounts receivable—third party Increase (Decrease) in Accounts Receivable Accounts payable, accrued liabilities and taxes payable Increase (Decrease) in Income Taxes Payable Other Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Additions to property, plant and equipment Payments to Acquire Other Productive Assets Contributions to equity method investments Payments to Acquire Equity Method Investments Proceeds from the sale of fixed assets Proceeds from Sale of Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from borrowings from credit facility Proceeds from Lines of Credit Payments on credit facility Repayments of Lines of Credit Distribution equivalent rights Payments of Distributions to Affiliates Debt issuance costs Payments of Debt Issuance Costs Net proceeds from initial public offering—public Proceeds from Issuance Initial Public Offering Net proceeds from initial public offering—General Partner Proceeds From Issuance Initial Public Offering, General Partner Proceeds From Issuance Initial Public Offering, General Partner Net proceeds from initial public offering—Diamondback Proceeds From Issuance Initial Public Offering, Related Party Proceeds From Issuance Initial Public Offering, Related Party Distribution to General Partner (Note 1) Payments of Ordinary Dividends, Preferred Stock and Preference Stock Distribution to General Partner (Note 1) Payments of Capital Distribution Distribution to public (Note 1) Payments of Ordinary Dividends, Common Stock Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase in cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash at end of period Supplemental disclosure of cash flow information: Additional Cash Flow Elements, Financing Activities [Abstract] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Supplemental disclosure of non-cash financing activity: Cash Flow, Noncash Financing Activities Disclosure [Abstract] Cash Flow, Noncash Financing Activities Disclosure [Abstract] Contributions from Diamondback Non-cash Capital Contributions Non-cash Capital Contributions Supplemental disclosure of non-cash investing activity: Cash Flow, Noncash Investing Activities Disclosure [Abstract] Cash Flow, Noncash Investing Activities Disclosure [Abstract] Increase in long term assets and inventory due to contributions from Diamondback Increase In Long Term Assets And Inventory From Contributions Increase In Long Term Assets And Inventory From Contributions Change in accrued liabilities related to property, plant and equipment Increase (Decrease) in Accrued Capital Expenditures Increase (Decrease) in Accrued Capital Expenditures Earnings Per Share [Abstract] EARNINGS PER COMMON UNIT Earnings Per Share [Text Block] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Produced water disposal systems Produced Water Gathering and Disposal [Member] Produced Water Gathering and Disposal [Member] Crude oil gathering systems Crude Oil [Member] Natural gas gathering and compression systems Natural Gas, Midstream [Member] Sourced water gathering systems Sourced Water Services [Member] Sourced Water Services [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property and equipment estimated useful lives (in years) Property, Plant and Equipment, Useful Life Property, plant and equipment, gross Property, Plant and Equipment, Gross Land Land Less: accumulated depreciation, amortization and accretion Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net Property, Plant and Equipment, Net Assets not subject to depreciation, amortization and accretion Property, plant and equipment not subject to depreciation, amortization or accretion Property, plant and equipment not subject to depreciation, amortization or accretion Depreciation expense related to property, plant and equipment Depreciation, Nonproduction Capitalized internal costs Capitalized Internal Costs During Period Capitalized Internal Costs During Period Capitalized interest related to property, plant and equipment Accumulated Capitalized Interest Costs Losses related to weather damage Unusual or Infrequent Item, or Both, Loss, Gross Expect insurance proceeds on damage Unusual or Infrequent Item, or Both, Insurance Proceeds Net loss related to weather damage Unusual or Infrequent Item, or Both, Net of Insurance Proceeds Equity [Abstract] UNITHOLDERS’ EQUITY AND PARTNERSHIP DISTRIBUTIONS Partners' Capital Notes Disclosure [Text Block] Cover page. Entities [Table] Entities [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Class B Units Class B Units [Member] Class B Units [Member] Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type Document Annual Report Document Annual Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Ex Transition Period Entity Ex Transition Period Entity Shell Company Entity Shell Company Entity Public Float Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Units outstanding (in shares) Limited Partners' Capital Account, Units Outstanding Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Common Unit Common Stock [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Partners' capital, cash distribution (in USD per common unit) Partners' Capital, Distribution Amount Per Share Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Rattler Credit Facility Rattler Credit Facility [Member] Rattler Credit Facility [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Base Rate Prime Rate [Member] LIBOR London Interbank Offered Rate (LIBOR) [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Operating Company revolving credit facility Long-term Debt, Gross Total long-term debt Long-term Debt Revolving credit facility maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Available borrowings capacity Line of Credit Facility, Remaining Borrowing Capacity Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Commitment fee on the unused portion of the borrowing base Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Limited Partners Member's Equity Member Units [Member] Common Units Non-Controlling Interest Noncontrolling Interest [Member] Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] Non-Controlling Interest-Accumulated Other Comprehensive Income AOCI Attributable to Noncontrolling Interest [Member] Partner Type [Axis] Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] Limited Partners Limited Partner [Member] General Partner General Partner [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Partners' Capital [Roll Forward] Increase (Decrease) in Partners' Capital [Roll Forward] Beginning balance Partners' Capital, Including Portion Attributable to Noncontrolling Interest Beginning balance (in shares) Shares, Outstanding Contributions from Diamondback Partners' Capital Account, Contributions Distributions to public Partners' Capital Account, Distributions Distributions to Diamondback vnom_LimitedPartnersCapitalAccountDistributionAmount-RelatedParty The total amount of distributions to related party limited partners. Net proceeds from the offering - public (in shares) Partners' Capital Account, Units, Sold in Public Offering Net proceeds from the offering - public Partners' Capital Account, Public Sale of Units Net of Offering Costs Net proceeds from the offering - General Partner Partners' Capital Account, Sale Of Units, General Partner Partners' Capital Account, Sale Of Units, General Partner Net proceeds from the offering - Diamondback (in shares) Partners' Capital Account, Units Sold In Offering, Related Party Partners' Capital Account, Units Sold In Offering, Related Party Net proceeds from the offering - Diamondback Partners' Capital Account, Sale Of Units, Related Party Partners' Capital Account, Sale Of Units, Related Party Unit-based compensation, net of distribution equivalent right payments Partners' Capital Account, Unit-based Payment Arrangement, Amount Elimination of current and deferred tax liabilities Elimination of current and deferred tax liabilities Elimination of current and deferred tax liabilities Allocation of net investment to unitholder Allocation of net investment to unitholder Allocation of net investment to unitholder Distributions to General Partner General Partners' Capital Account, Period Distribution Amount Distributions to non-controlling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Net income Ending balance Ending balance (in shares) Asset Retirement Obligation [Abstract] ASSET RETIREMENT OBLIGATIONS Asset Retirement Obligation Disclosure [Text Block] PROPERTY, PLANT AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Schedule of equity method investments Equity Method Investments [Table Text Block] Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Income Tax Disclosure [Abstract] Deferred tax assets Deferred Tax Assets, Gross [Abstract] Net operating loss and other carryforwards (indefinite life) Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration Investment in the Operating Company Deferred Tax Assets, Investments Other Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Deferred tax liabilities Components of Deferred Tax Liabilities [Abstract] Investment in the Operating Company Deferred Tax Liabilities, Investments Midstream assets Deferred Tax Liabilities, Property, Plant and Equipment Other Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities, Gross Net deferred tax liabilities Deferred Tax Liabilities, Net Schedule of Limited Partners' Capital Account by Class [Table] Schedule of Limited Partners' Capital Account by Class [Table] Ownership [Axis] Ownership [Axis] Ownership [Domain] Ownership [Domain] Rattler Midstream Partners LLC Rattler Midstream Partners LLC [Member] Rattler Midstream Partners LLC [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Diamondback Energy, Inc. Diamondback Energy, Inc. [Member] Diamondback Energy, Inc. [Member] Common Units Limited Partners' Capital Account [Line Items] Limited Partners' Capital Account [Line Items] Common units issued (in shares) Limited Partners' Capital Account, Units Issued Limited partners, ownership interest Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Units outstanding, begging balance (in shares) Units issued in public offerings (in shares) Units related to tax conversion (in shares) Recapitalization related to tax conversion, units Recapitalization related to tax conversion, units Units outstanding, ending balance (in shares) Partners' capital, cash distribution, period of record date after quarter end Partners' Capital, Cash Distribution, Period Of Record Date After Quarter End Partners' Capital, Cash Distribution, Period Of Record Date After Quarter End Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Income tax expense at the federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Impact of nontaxable noncontrolling interest Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount State income tax expense, net of federal tax effect Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Income tax benefit relating to change in statutory tax rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Other, net Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Total provision for income taxes Income Tax Expense (Benefit) Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash Cash and Cash Equivalents, Policy [Policy Text Block] Accounts Receivable-Related Party Accounts Receivable [Policy Text Block] Sourced Water Inventory Inventory, Policy [Policy Text Block] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Equity Method Investments Equity Method Investments [Policy Text Block] Real Estate Assets Real Estate Assets, Policy [Policy Text Block] Real Estate Assets, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Asset Retirement Obligations Asset Retirement Obligation [Policy Text Block] Commitments and Contingencies Commitments and Contingencies, Policy [Policy Text Block] Revenue Recognition and Real Estate Revenue Recognition Revenue [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Capital Contributions Combination of Entities under Common Control, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Revenue from Contracts with Customers Revenue from Contract with Customer [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Statement of Comprehensive Income [Abstract] Other comprehensive income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Change in accumulated other comprehensive loss of equity method investees attributable to non-controlling interest Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Change in accumulated other comprehensive loss of equity method investees attributable to limited partner Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total other comprehensive income Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to non-controlling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to Rattler Midstream LP Comprehensive Income (Loss), Net of Tax, Attributable to Parent Equity method investment, other than temporary impairment Equity Method Investment, Other than Temporary Impairment Schedule of basic and diluted net income per common unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] 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] Current income tax provision: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State Current State and Local Tax Expense (Benefit) Total current income tax provision Current Income Tax Expense (Benefit) Deferred income tax provision: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Total deferred income tax provision Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Sourced water gathering Produced water gathering and disposal Crude oil gathering Natural gas gathering Natural Gas, Gathering, Transportation, Marketing and Processing [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] ASC 606 revenues Revenue from Contract with Customer, Excluding Assessed Tax Surface revenue (non ASC 606 revenues) Other Income Real estate contracts (non ASC 606 revenues) Operating Lease, Lease Income Total revenues Revenues Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information Quarterly Financial Information [Table Text Block] Leases [Abstract] LEASES Lessee, Operating Leases [Text Block] SUBSEQUENT EVENTS Subsequent Events [Text Block] Revenues Income from operations Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax expense Net income Net income attributable to non-controlling interest subsequent to initial public offering Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to Rattler Midstream LP Net Income (Loss) Attributable to Parent Net income (loss) attributable to limited partners per common unit: Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Real Estate [Abstract] Schedule of real estate assets and intangible lease assets Schedule of Real Estate Properties [Table Text Block] Share-based Payment Arrangement [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Phantom Share Units (PSUs) Phantom Share Units (PSUs) [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of common units reserved for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Unit-based compensation expenses Share-based Payment Arrangement, Expense Unrecognized compensation cost related to unvested phantom units Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unrecognized compensation cost related to unvested phantom units, period for recognition Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Phantom Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unvested at May 28, 2019 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 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 Unvested at December 31, 2019 (in shares) 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] Unvested at May 28, 2019 (in USD 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 USD 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 Forfeited (in USD Per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Unvested at December 31, 2019 (in USD Per share) Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] HMW Fluid Management LLC HMW Fluid Management LLC [Member] HMW Fluid Management LLC, a limited liability company formed to develop, own and operate an integrated water management system to gather, store, process, treat, distribute and dispose of water to exploration and production companies operating in Midland, Martin and Andrews Counties, Texas. Property, Plant and Equipment, Type [Axis] Sourced water asset Sourced Water Asset [Member] Sourced Water Asset [Member] Sourced water asset, inventory Sourced Water Asset, Inventory [Member] Sourced Water Asset, Inventory [Member] Produced Water Disposal Wells Produced Water Disposal Wells [Member] Produced Water Disposal Wells [Member] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] State State and Local Jurisdiction [Member] Related Party [Axis] Related Party [Axis] Related Party Transaction [Domain] Related Party [Domain] General Partner Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Partnership Agreement Partnership Agreement [Member] Partnership Agreement [Member] Asset Contribution Agreement Asset Contribution Agreement [Member] Asset Contribution Agreement [Member] Services and Secondment Agreement Services and Secondment Agreement [Member] Services and Secondment Agreement [Member] Fasken Center Agreements Fasken Center Agreements [Member] Fasken Center Agreements [Member] Crude Oil Gathering Agreement Crude Oil Gathering Agreement [Member] Crude Oil Gathering Agreement [Member] Gas Gathering and Compression Agreement Gas Gathering and Compression Agreement [Member] Gas Gathering and Compression Agreement [Member] Flowback Water Gathering and Disposal Agreement Flowback Water Gathering and Disposal Agreement [Member] Flowback Water Gathering and Disposal Agreement [Member] Exchange Agreement Exchange Agreement [Member] Exchange Agreement [Member] Sourced Water Services Agreement Sourced Water Services Agreement [Member] Sourced Water Services Agreement [Member] Equity Contribution Agreement Equity Contribution Agreement [Member] Equity Contribution Agreement [Member] Tax Sharing Agreement Tax Sharing Agreement [Member] Tax sharing agreement between Diamondback and Viper Related Party Transaction [Line Items] Related Party Transaction [Line Items] Payment under Services and Secondment Agreement Related Party Transaction, Expenses from Transactions with Related Party Ownership Interest Equity Method Investment, Ownership Percentage Property, Plant and Equipment, Net Equity method investments Equity Method Investments Asset retirement obligation Asset Retirement Obligation Fair value of assets contributed Related Party Transaction, Assets Contribution, Fair Value Related Party Transaction, Assets Contribution, Fair Value Carrying value of assets contributed Related Party Transaction, Assets Contribution, Carrying Value Related Party Transaction, Assets Contribution, Carrying Value Ownership percentage of oil and gas property Ownership Percentage Of Oil And Gas Property Ownership Percentage Of Oil And Gas Property Number of oil and gas properties Oil And Gas Properties, Number Of Units Oil And Gas Properties, Number Of Units Revenue from related parties Revenue from Related Parties Unit exchange term, number of days for exchange calculation Related Party Transaction, Unit Exchange Term, Number Of Days Related Party Transaction, Unit Exchange Term, Number Of Days Unit exchange term, calculation base Related Party Transaction, Unit Exchange Term, Calculation Base Related Party Transaction, Unit Exchange Term, Calculation Base Unit exchange term, exchange ratio Related Party Transaction, Unit Exchange Term, Ratio Related Party Transaction, Unit Exchange Term, Ratio Number of units exchanged (in shares) Related Party Transaction, Unit Exchanged Related Party Transaction, Unit Exchanged Related party transaction amount Related Party Transaction, Amounts of Transaction State income tax expense Business Combinations [Abstract] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Ajax Ajax Acquisition [Member] Ajax Acquisition [Member] Energen Energen [Member] Energen Corporation Water Wells Water Wells [Member] Water Wells [Member] Produced Water Disposal Produced Water Disposal [Member] Produced Water Disposal [Member] Gathering system Gathering System [Member] Gathering System [Member] Hydraulic Fracturing Pits Hydraulic Fracturing Pits [Member] Hydraulic Fracturing Pits [Member] Sourced Water Transportation System Sourced Water Transportation System [Member] Sourced Water Transportation System [Member] Ajax Contribution Ajax Contribution [Member] Ajax Contribution [Member] Energen Contribution Energen Contribution [Member] Energen Contribution [Member] Sourced Water Asset Contribution Sourced Water Asset Contribution [Member] Sourced Water Asset Contribution [Member] Sourced Water Inventory Contribution Sourced Water Inventory Contribution [Member] Sourced Water Inventory Contribution [Member] Tall Tower Tall Tower [Member] Tall Tower [Member] Midstream Assets Midstream Assets [Member] Midstream Assets [Member] Midstream Land Midstream Land [Member] Midstream Land [Member] Field office Midland Field Office [Member] Midland Field Office [Member] Contribution of property Contribution of Property Number of water disposal wells acquired Number Of Water Disposal Well Acquired Number Of Water Disposal Well Acquired Asset retirement obligations, associated with assets contribution Asset Retirement Obligations, Associated With Assets Contribution Asset Retirement Obligations, Associated With Assets Contribution Payment to acquire produced water disposal wells and related assets Payments to Acquire Water and Waste Water Systems Increase of disposal capacity (in barrels per day) Number Of Additional Disposal Capacity Number Increase Disposal Capacity. Contributed Assets [Table] Contributed Assets [Table] Contributed Assets [Table] Office building Office Building [Member] Land Land and Land Improvements [Member] Produced water disposal assets Produced Water Disposal Assets [Member] Produced Water Disposal Assets [Member] Crude oil assets Crude Oil Gathering Assets [Member] Crude Oil Gathering Assets [Member] Contributed Assets [Line Items] Contributed Assets [Line Items] [Line Items] for Contributed Assets [Table] Capital contribution related to equity method investments Capital Contribution Related To Equity Method Investments Capital Contribution Related To Equity Method Investments Capital contribution related to elimination of current and deferred liabilities Capital Contribution Related To Elimination Of Current And Deferred Liabilities Capital Contribution Related To Elimination Of Current And Deferred Liabilities Capital contribution in additional assets and liabilities, net, related to operations Capital Contribution In Additional Assets And Liabilities, Net, Related To Operations Capital Contribution In Additional Assets And Liabilities, Net, Related To Operations Schedule of nonvested share activity Schedule of Nonvested Share Activity [Table Text Block] 2020 Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less: interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Present value of lease liabilities Operating Lease, Liability Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] UNIT-BASED COMPENSATION Share-based Payment Arrangement [Text Block] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Dawson, Martin And Andrews Counties, Texas Dawson, Martin And Andrews Counties, Texas [Member] Dawson, Martin And Andrews Counties, Texas [Member] Martin County, Texas Martin County, Texas [Member] Martin County, Texas [Member] Reliance Gathering, LLC Reliance Gathering LLC [Member] Reliance Gathering LLC [Member] Joint Venture of Wink to Webster Project Joint Venture Of Wink To Webster Project [Member] Joint Venture Of Wink To Webster Project [Member] Amarillo Rattler, LLC Amarillo Rattler, LLC [Member] Amarillo Rattler, LLC [Member] Gray Oak Pipeline, LLC Gray Oak Pipeline [Member] Gray Oak Pipeline [Member] OMOG JV LLC OMOG JV LLC [Member] OMOG JV LLC [Member] 2.52% Short-Term Promissory Note 2.52% Short-Term Promissory Note [Member] 2.52% Short-Term Promissory Note [Member] EPIC Crude Holdings, LP Epic Pipeline [Member] Epic Pipeline [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Borrowing amount Equity Method Investment Promissory Note Equity method investment promissory note Promissory note stated interest rate Equity Method Investment Promissory Note, Stated Interest Rate Equity Method Investment Promissory Note, Stated Interest Rate Proceeds from short-term promissory note Proceeds from Notes Payable Member ownership percentage Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Percentage acquired Business Acquisition, Percentage of Voting Interests Acquired Gas gathering and cryogenic processing system capacity Gas Gathering And Cryogenic Processing System Capacity Gas Gathering And Cryogenic Processing System Capacity Distance of gathering and regional transportation pipelines Distance Of Gathering And Regional Transportation Pipelines Distance Of Gathering And Regional Transportation Pipelines Aggregate difference between the carrying amounts of these investments and the amounts of underlying equity in net assets Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Equity method investment, capitalized interest Equity Method Investment Capitalized Interest Equity Method Investment Capitalized Interest Lease, Cost Lease, Cost [Table Text Block] Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, Maturity [Table Text Block] INCOME TAXES Income Tax Disclosure [Text Block] Components of the provision for income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Reconciliation of statutory federal income tax amount to the recorded expense Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Components of the Partnership’s deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Statement of Financial Position [Abstract] Earnings Per Share, Basic [Abstract] Earnings Per Share, Basic [Abstract] Net income attributable to Rattler Midstream LP Less: net income allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Net income attributable to common unitholders Net Income (Loss) Available to Common Stockholders, Basic Basic weighted average common units outstanding (in shares) Weighted Average Limited Partnership Units Outstanding, Basic Diluted weighted average common units outstanding (in shares) Weighted Average Limited Partnership Units Outstanding, Diluted Net income per common unit, basic (in USD per share) Net income per common unit, diluted (in USD per share) Effect of dilutive securities: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Phantom units (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Assets Assets [Abstract] Current assets: Assets, Current [Abstract] Cash Cash and Cash Equivalents, at Carrying Value Accounts receivable—related party Accounts Receivable, Related Parties, Current Accounts receivable—third party Accounts Receivable, after Allowance for Credit Loss, Current Sourced water inventory Inventory, Net Other current assets Other Assets, Current Total current assets Assets, Current Property, plant and equipment: Property, plant and equipment Accumulated depreciation, amortization and accretion Right of use assets Operating Lease, Right-of-Use Asset Real estate assets, net Real Estate Investments, Net Intangible lease assets, net Intangible Assets, Net (Excluding Goodwill) Other assets Other Assets, Noncurrent Total assets Assets Liabilities and Unitholders’ Equity Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued liabilities Accrued Liabilities, Current Taxes payable Taxes Payable, Current Short-term lease liability Operating Lease, Liability, Current Total current liabilities Liabilities, Current Long-term debt Asset retirement obligations Asset Retirement Obligations, Noncurrent Deferred income taxes Deferred Income Tax Liabilities, Net Total liabilities Liabilities Commitments and contingencies (Note 17) Commitments and Contingencies Unitholders' equity: Unitholders' Equity [Abstract] Unitholders' Equity [Abstract] Limited partners member's equity—Diamondback Members' Equity General partner—Diamondback General Partners' Capital Account Common units—public (43,700,000 units issued and outstanding as of December 31, 2019) Limited Partners' Capital Account Class B units—Diamondback (107,815,152 units issued and outstanding as of December 31, 2019) Other Partners' Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total Rattler Midstream LP unitholders’ equity Partners' Capital Non-controlling interest Partners' Capital Attributable to Noncontrolling Interest Non-controlling interest in accumulated other comprehensive loss Non-controlling Interest in Accumulated other Comprehensive Loss Non-controlling Interest in Accumulated other Comprehensive Loss Total equity Total liabilities and unitholders’ equity Liabilities and Equity Contractual obligation Other Commitment Rattler MIdstream LP Rattler MIdstream LP [Member] Rattler MIdstream LP [Member] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] Over-Allotment Option Over-Allotment Option [Member] IPO IPO [Member] Number of shares issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Shares price (in dollars per share) Shares Issued, Price Per Share Net proceeds received from sale of common units Sale of Stock, Consideration Received on Transaction Cash contribution from Diamondback Limited Partners' Contributed Capital Cash contribution from the general partner General Partners' Contributed Capital Payments of distributions to affiliates General partners capital account, percentage of preferred cash distribution received General Partners' Capital Account, Percentage Of Preferred Cash Distribution Received General Partners' Capital Account, Percentage Of Preferred Cash Distribution Received General partners, ownership interest Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Number of operating segments Number of Operating Segments Schedule of partnership’s common units Schedule of Limited Partners' Capital Account by Class [Table Text Block] Schedule of cash distributions Distributions Made to Limited Partner, by Distribution [Table Text Block] REPORT OF OPERATING BUSINESS SEGMENTS Segment Reporting Disclosure [Text Block] EQUITY METHOD INVESTMENTS Equity Method Investments and Joint Ventures Disclosure [Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] AOCI Including Portion Attributable to Noncontrolling Interest AOCI Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Other comprehensive loss before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Total other comprehensive income QUARTERLY FINANCIAL DATA (Unaudited) Quarterly Financial Information [Text Block] Schedule of accrued liabilities Schedule of Accrued Liabilities [Table Text Block] Schedule of accumulated other comprehensive income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Description of recent accounting pronouncements Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Real Estate [Table] Real Estate [Table] Tall Tower A-Street Building A-Street Building [Member] A-Street Building [Member] Buildings Building [Member] Tenant improvements Leasehold Improvements [Member] Land improvements Land Improvements [Member] Finite-lived Intangible Assets [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] In-place lease intangibles Leases, Acquired-in-Place [Member] Above-market lease intangibles Above Market Leases [Member] Lease intangibles Lease Intangibles [Member] Lease Intangibles [Member] Real Estate [Line Items] Real Estate [Line Items] Payments to acquire real estate and real estate joint ventures Buildings, Gross Buildings and Improvements, Gross Tenant improvements Tenant Improvements Land improvements Land Improvements Total real estate assets Real Estate Investment Property, at Cost Less: accumulated depreciation Real Estate Owned, Accumulated Depreciation Total investment in real estate, net Real Estate Investment Property, Net Intangible assets, weighted average useful lives (in years) Finite-Lived Intangible Asset, Useful Life Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Less: accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Finite-lived intangibles assets, net Finite-Lived Intangible Assets, Net Depreciation and amortization expense for real estate assets Depreciation And Amortization, Nonproduction, Real Estate Depreciation And Amortization, Nonproduction, Real Estate Estimated amortization expense, year one Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Estimated amortization expense, year two Finite-Lived Intangible Assets, Amortization Expense, Year Two Estimated amortization expense, year three Finite-Lived Intangible Assets, Amortization Expense, Year Three Estimated amortization expense, year four Finite-Lived Intangible Assets, Amortization Expense, Year Four Estimated amortization expense, year five Finite-Lived Intangible Assets, Amortization Expense, Year Five REVENUE FROM CONTRACTS WITH CUSTOMERS Revenue from Contract with Customer [Text Block] REAL ESTATE ASSETS Real Estate Disclosure [Text Block] Income Statement [Abstract] Revenues—related party Midstream Services - Related Party [Member] Midstream Services - Related Party [Member] Revenues—third party Midstream Services [Member] Midstream Services [Member] Rental income—related party Real Estate Income - Related Party [Member] Real Estate Income - Related Party [Member] Rental income—third party Real Estate Income [Member] Real Estate Income [Member] Other real estate income—related party Other Real Estate Income - Related Party [Member] Other Real Estate Income - Related Party [Member] Other real estate income—third party Other Real Estate Income [Member] Other Real Estate Income [Member] Revenues: Revenues [Abstract] Total revenues Costs and expenses: Operating Expenses [Abstract] Direct operating expenses Direct Operating Costs Cost of goods sold (exclusive of depreciation and amortization) Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Real estate operating expenses Other Revenue (Expense) from Real Estate Operations Depreciation, amortization and accretion Depreciation, Depletion and Amortization, Nonproduction General and administrative expenses Selling, General and Administrative Expense Total costs and expenses Costs and Expenses Income from operations Operating Income (Loss) Other income (expense): Other Income, Nonoperating [Abstract] Interest expense, net Interest Income (Expense), Net Income (loss) from equity method investments Total other income (expense), net Nonoperating Income (Expense) Net income before income taxes Provision for income taxes Net income attributable to limited partners per common unit - subsequent to initial public offering: Weighted average number of limited partner common units outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted EPIC Crude Holdings, LP Gray Oak Pipeline, LLC Wink to Webster Pipeline LLC Wink To Webster Pipeline [Member] Wink To Webster Pipeline [Member] Amarillo Rattler, LLC HMW LLC HMW LLC [Member] HMW LLC [Member] Income (loss) of equity method investees Unrecognized tax benefits material impact on the effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized tax benefits, income tax penalties and interest expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset retirement obligation, beginning of period Liabilities incurred Asset Retirement Obligation, Liabilities Incurred Liabilities settled Asset Retirement Obligation, Liabilities Settled Estimates revised Asset Retirement Obligation, Revision of Estimate Accretion expense during period Asset Retirement Obligation, Accretion Expense Asset retirement obligation, end of period Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Midstream Services Midstream Services Segment [Member] Midstream Services Segment [Member] Real Estate Operations Real Estate Operations Segment [Member] Real Estate Operations Segment [Member] Revenues—related party Revenues—third party Rental income—related party Rental income—third party Other real estate income—related party Other real estate income—third party Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Cost of goods sold (exclusive of depreciation and amortization) Loss on disposal of property, plant and equipment Loss from equity method investments Segment profit Gross Profit General and administrative expenses Segment assets ACQUISITIONS Business Combination Disclosure [Text Block] DEBT Long-term Debt [Text Block] Schedule of asset retirement obligation Schedule of Asset Retirement Obligations [Table Text Block] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-02 Accounting Standards Update 2016-02 [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Operating lease costs Operating Lease, Cost Cash paid for operating lease liabilities Operating Lease, Payments Additional amount of operating lease right of use asset recorded Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Consolidated Total Leverage Ratio Line of Credit, Covenant Terms, Consolidated Total Leverage Ratio Line of Credit, Covenant Terms, Consolidated Total Leverage Ratio Consolidated Total Leverage Ratio, for three fiscal quarters following certain acquisitions Line Of Credit, Covenant Terms, Consolidated Total Leverage Ratio, For Three Fiscal Quarters Following Certain Acquisitions Line Of Credit, Covenant Terms, Consolidated Total Leverage Ratio, For Three Fiscal Quarters Following Certain Acquisitions Consolidated Total Leverage Ratio when consolidated senior secured leverage ration is applicable Line Of Credit, Covenant Terms, Consolidated Total Leverage Ratio When Consolidated Senior Secured Leverage Ration Is Applicable Line Of Credit, Covenant Terms, Consolidated Total Leverage Ratio When Consolidated Senior Secured Leverage Ration Is Applicable Consolidated Senior Secured Leverage, not greater than 3.50 Line of Credit Facility, Covenant Terms, Ratio of Consolidated Senior Secured Leverage Ratio Line of Credit Facility, Covenant Terms, Ratio of Consolidated Senior Secured Leverage Consolidated Interest Coverage Ratio, not less than 2.50 Line of Credit Facility, Covenant Terms, Ratio of Consolidated Interest Coverage Line of Credit Facility, Covenant Terms, Ratio of Consolidated Interest Coverage Schedule of property, plant and equipment Property, Plant and Equipment [Table Text Block] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Elimination of current and deferred tax liabilities Elimination of deferred tax Elimination of deferred tax Income tax expense Deferred Tax Benefit Net noncurrent deferred tax liabilities Federal NOLs with indefinite carryforward life Schedule of long-term debt Schedule of Debt [Table Text Block] Schedule of financial covenants Schedule of Line of Credit Facilities, Covenant Terms [Table Text Block] Schedule of Line of Credit Facilities, Covenant Terms [Table Text Block] Capital expenditures accrued Accrued Capital Expenditures, Current Accrued Capital Expenditures, Current Direct operating expense accrued Accrued Direct Operating Expense, Current Accrued Direct Operating Expense, Current Sourced water purchases accrued Accrued Sourced Water Purchases, Current Accrued Sourced Water Purchases, Current Other Other Sundry Liabilities, Current Total accrued liabilities