Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Document type Document Type Other income (expense) Other Nonoperating Income (Expense) COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Land improvements Land Improvements Consideration over three years Disposal Group, Including Discontinued Operation, Consideration Over Three Years Disposal Group, Including Discontinued Operation, Consideration Over Three Years Noncontrolling Interest [Table] Noncontrolling Interest [Table] Segments [Axis] Segments [Axis] 5.625% Senior Notes due 2026(1) 5.625% Senior Notes due 2026 [Member] 5.625% Senior Notes due 2026 Other accrued liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Other Accrued Liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Other Accrued Liabilities Vested (in USD per share) Vested (in USD 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 Level 3 Fair Value, Inputs, Level 3 [Member] Total Gross Fair Value Derivative Asset, Fair Value, Gross Asset, Current Derivative Asset, Fair Value, Gross Asset, Current Total Tier One acres (in acre) Combined Tier One Acres Combined Tier One Acres Repurchased units under buyback programs (in Shares) Stock Repurchased During Period, Shares Equity Plan Equity Plan [Member] The Company's Equity Incentive Plan Apr. - Dec. Derivative, Settlement Month Four [Member] Derivative, Settlement Month Four Oct. - Dec. Derivative, Settlement Month Three [Member] Derivative, Settlement Month Three Limited Partner Limited Partner [Member] Asset retirement obligations Asset Acquisition, Asset Retirement Obligation Asset Acquisition, Asset Retirement Obligation Statistical Measurement [Domain] Statistical Measurement [Domain] Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Apr. - June Derivative, Settlement Month One [Member] Derivative, Settlement Month One Restricted Stock Awards & Units Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Distribution to non-controlling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Jan. - June Derivative, Settlement Month Seven [Member] Derivative, Settlement Month Seven Deferred income taxes Deferred Income Tax Liabilities, Net DERIVATIVES Derivative Instruments and Hedging Activities Disclosure [Text Block] Security Exchange Name Security Exchange Name Energy [Axis] Energy [Axis] Changes in operating assets and liabilities: Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] Income (loss) from operations Income (loss) from operations Operating Income (Loss) Debt issuance costs Payments of Debt Issuance Costs Funds held in escrow Increase (Decrease) in Deposit Assets Infrastructure additions to oil and natural gas properties Payments to add oil and natural gas properties infrastructure Payments to add oil and natural gas properties infrastructure Total current liabilities Liabilities, Current Other Other Customer [Member] Diluted earnings per common share (in USD per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Performance Shares Performance Shares [Member] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Unvested, beginning balance (in USD per share) Unvested, ending balance (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 Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Commitments and contingencies (Note 15) Commitments and Contingencies Current federal taxes receivable Current Federal Taxes Receivable Current Federal Taxes Receivable Five-Year Share-based Payment Arrangement, Tranche Two [Member] Repurchased shares under buyback program Payments for Repurchase of Common Stock Assets Assets [Abstract] Investment, Name [Axis] Investment, Name [Axis] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Performance shares, performance period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Accounting Policies [Abstract] Accounting Policies [Abstract] Consideration period Disposal Group, Including Discontinued Operation, Consideration, Period Disposal Group, Including Discontinued Operation, Consideration, Period Exercise of stock options and issuance of restricted stock units and awards Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Entity Address, State or Province Entity Address, State or Province Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Net royalty area (in acre) Conventional And Noncore Assets Divested, Area Conventional And Noncore Assets Divested, Area Derivative instruments Derivative instruments Derivative Asset, Current Current: Derivative Liability, Current [Abstract] Derivative Liability, Current QEP Resources Inc QEP Resources Inc [Member] QEP Resources Inc Retained earnings (accumulated deficit) Retained Earnings (Accumulated Deficit) Wink to Webster Pipeline LLC(1) Wink To Webster Pipeline [Member] Wink To Webster Pipeline [Member] Subject to depletion Capitalized Costs, Proved Properties Repayments under credit facilities Repayments of Lines of Credit Henry Hub Henry Hub [Member] Henry Hub Unamortized discount costs Issuance costs and discount Debt Instrument, Unamortized Discount Loss on extinguishment of debt Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt 5.375% Senior Notes due 2025 5.375% Senior Notes Due 2025 [Member] 5.375% Senior Notes Due 2025 [Member] Distribution equivalent rights payments Limited Partners' Capital Account, Distribution Equivalent Rights Payments Limited Partners' Capital Account, Distribution Equivalent Rights Payments Fair value measurement information for financial instruments measured on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Share based award not recognized Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Customer [Axis] Customer [Axis] Income tax receivable Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Assets, Income Taxes Receivable, Current Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Assets, Income Taxes Receivable, Current Gain (loss) on derivative instruments, net (Gain) loss on derivative instruments, net Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Contributions to equity method investments Payments to Acquire Equity Method Investments Buildings Building [Member] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Premium on extinguishment of debt Payment for Debt Extinguishment or Debt Prepayment Cost Other long-term liabilities Other Liabilities, Noncurrent Deferred income taxes, net Deferred Income Tax Assets, Net Other Payments for (Proceeds from) Other Investing Activities Gross Amounts Offset in Balance Sheet Derivative Asset, Fair Value, Gross Liability, Current Derivative Asset, Fair Value, Gross Liability, Current Stock-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Asset retirement obligations, beginning of period Asset retirement obligations, end of period Asset Retirement Obligation Midland Basin Midland Basin [Member] Midland Basin Inventories Inventory, Net Revenue Revenue from Contract with Customer, Excluding Assessed Tax Derivative Instruments Derivative [Member] Measurement Frequency [Domain] Measurement Frequency [Domain] Northern Midland Basin Northern Midland Basin [Member] Northern Midland Basin Business Acquisition [Axis] Business Acquisition [Axis] Geographical [Domain] Geographical [Domain] Additions to midstream assets Payments to Acquire Oil and Gas Equipment Schedule of performance restricted stock units activity Share-based Compensation Arrangements by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest [Table Text Block] Statement [Line Items] Statement [Line Items] Common units issued for acquisitions (in shares) Stock Issued During Period, Shares, Acquisitions 2022 Derivative Settlement, Year Two [Member] Derivative Settlement, Year Two Shares of QEP equity awards included in precombination consideration (in shares) Business Acquisition, Equity Interest Issued Or Issuable, Number Of Shares, Precombination Consideration Business Acquisition, Equity Interest Issued Or Issuable, Number Of Shares, Precombination Consideration Forecast Forecast [Member] Class of Stock [Domain] Class of Stock [Domain] Prepaid expenses and other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Cash paid for tax withholding on vested equity awards Adjustment To Additional Paid In Capital, Repurchased Shares For Tax Withholding Adjustment To Additional Paid In Capital, Repurchased Shares For Tax Withholding Acquisition related costs Business Combination, Acquisition Related Costs Gross Amounts Offset in Balance Sheet Derivative Liability, Fair Value, Gross Asset, Current Derivative Liability, Fair Value, Gross Asset, Current Statement [Table] Statement [Table] Cash received (paid) on settlement of derivative instruments Derivative, Cash Received On Settlement Of Hedge Derivative, Cash Received On Settlement Of Hedge Statistical Measurement [Axis] Statistical Measurement [Axis] Fair value of liabilities assumed: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] Land Land Rattler revolving credit facility Rattler Credit Facility [Member] Rattler Credit Facility [Member] Derivative instruments Derivative instruments Derivative Liability, Noncurrent Nonrecurring Fair Value, Nonrecurring [Member] Business Combinations [Abstract] Business Combinations [Abstract] Entity Small Business Entity Small Business Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Swap Swap [Member] Amount attributable to assets acquired Asset Acquisition, Assets Acquired Asset Acquisition, Assets Acquired Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] DEBT Debt Disclosure [Text Block] Senior notes due Loans Payable, Fair Value Disclosure Less current portion Asset Retirement Obligation, Current Net assets acquired and liabilities assumed Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Amendment Flag Amendment Flag Derivative, Settlement Month [Axis] Derivative, Settlement Month [Axis] Derivative, Settlement Month Schedule of reconciliation of basic and diluted net income per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Effect of dilutive securities: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Schedule of preliminary purchase price allocation Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Viper Energy Partners LP Viper Energy Partners LP Viper Energy Partners LP [Member] Viper Energy Partners LP [Member] Other accrued liabilities Other Accrued Liabilities, Current Inventories Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Equity Method Investments Equity Method Investments [Table Text Block] Unamortized costs Oil and Gas Producing Properties of Rate Regulated Companies, Unamortized Cost Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Midstream Operations Midstream Operations Segment [Member] Midstream Operations Segment [Member] Entity Central Index Key Entity Central Index Key Number of shares authorized percent of shares granted Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Percent of Shares Granted Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Percent of Shares Granted Measurement Frequency [Axis] Measurement Frequency [Axis] Current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Total Gross Fair Value Derivative Liability, Fair Value, Gross Liability, Current Derivative Liability, Fair Value, Gross Liability, Current Rattler LLC and Amarillo Midstream Rattler LLC And Amarillo Midstream [Member] Rattler LLC And Amarillo Midstream Derivative Instrument [Axis] Derivative Instrument [Axis] Merger and integration expense Merger and integration expense Expenses related to merger and integration of the merger Financial Instruments [Domain] Financial Instruments [Domain] Repurchased units under buyback program Payments for Repurchase of Common Stock, Units Payments for Repurchase of Common Stock, Units Offsetting Assets Offsetting Assets [Table Text Block] Gain (loss) on derivative instruments, net Derivative, Gain (Loss) on Derivative, Net Fair Value Measurement [Domain] Fair Value Measurement [Domain] Viper 5.375% Senior Notes due 2027 5.375% Senior Notes Due 2027 [Member] 5.375% Senior Notes Due 2027 [Member] Statement of Partners' Capital [Abstract] Statement of Partners' Capital [Abstract] Funds held in escrow Escrow Deposit Income tax receivable Income Taxes Receivable, Current Geographical [Axis] Geographical [Axis] SUBSEQUENT EVENTS Subsequent Events [Text Block] Liabilities: Derivative Liability [Abstract] Asset retirement obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Asset Retirement Obligation Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Asset Retirement Obligation Segments [Domain] Segments [Domain] Real Estate [Table] Real Estate [Table] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] 3.500% Senior Notes due 2029 3.500% Senior Notes Due 2029 [Member] 3.500% Senior Notes Due 2029 [Member] Net income (loss) Business Acquisition, Pro Forma Net Income (Loss) Proceeds from debt, net Proceeds from Debt, Net of Issuance Costs Derivative, Settlement Year [Axis] Derivative, Settlement Year [Axis] Derivative, Settlement Year Potential common shares issuable (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Mont Belvieu Propane Mont Belvieu Propane [Member] Mont Belvieu Propane Summary of restricted stock units Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Number of wells Conventional And Noncore Assets Divested, Number Of Wells Conventional And Noncore Assets Divested, Number Of Wells Income Statement Location [Axis] Income Statement Location [Axis] Common units issued for acquisitions Stock Issued During Period, Value, Acquisitions Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Income Statement Location [Domain] Income Statement Location [Domain] Midstream assets Asset Acquisition, Midstream Assets Asset Acquisition, Midstream Assets Rolling Swap Rolling Hedge [Member] Rolling Hedge Company revolving credit facility Revolving credit facility Company Credit Facility [Member] Revolving credit facility entered into by Diamondback O&G, LLC. Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] General and administrative expenses Selling, General and Administrative Expense Guidon Operating LLC Guidon Operating LLC [Member] Guidon Operating LLC Oil and Natural Gas Oil and Gas Properties [Member] Line of Credit Facility [Table] Line of Credit Facility [Table] Other assets Other Assets, Noncurrent Plan Name [Axis] Plan Name [Axis] EQUITY METHOD INVESTMENTS Equity Method Investments and Joint Ventures Disclosure [Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Total assets Assets Assets Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Scenario [Axis] Scenario [Axis] Eligible shares of QEP common stock to be converted into shares of Diamondback common stock (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number Of Shares, Shares Eligible To Be Converted Business Acquisition, Equity Interest Issued or Issuable, Number Of Shares, Shares Eligible To Be Converted Derivative instruments Derivative instruments Derivative Liability, Current Upstream Upstream Services Segment [Member] Upstream Services Segment [Member] 7.320% Medium-term Notes, Series A, due 2022 7.32% Medium Term Series A due 2022 [Member] 7.32% Medium Term Series A due 2022 [Member] Total Gross Fair Value Derivative Asset, Fair Value, Gross Asset, Non-Current Derivative Asset, Fair Value, Gross Asset, Non-Current Unvested, beginning balance (in shares) Unvested, ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Title of 12(b) Security Title of 12(b) Security Disposal Group Classification [Axis] Disposal Group Classification [Axis] Gray Oak Pipeline, LLC Gray Oak Pipeline [Member] Gray Oak Pipeline [Member] Impairment without SEC waiver Impairment of Oil And Gas Properties Without Waiver Impairment of Oil And Gas Properties Without Waiver Rattler MIdstream LP Rattler MIdstream LP [Member] Rattler MIdstream LP [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Oil and gas properties Asset Acquisition, Oil And Gas Properties Asset Acquisition, Oil And Gas Properties Discrete income tax expense (benefit) related to deferred taxes recorded during the period Discrete income tax benefit related to deferred taxes recorded during the period Discrete income tax benefit related to deferred taxes recorded during the period Vesting [Domain] Vesting [Domain] ACQUISITIONS Mergers, Acquisitions and Dispositions Disclosures [Text Block] QEP Notes QEP Notes [Member] QEP Notes Depreciation, depletion, amortization and accretion Depreciation, Depletion and Amortization Cash, cash equivalents and restricted cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Product and Service [Axis] Product and Service [Axis] Total liabilities Liabilities Share based payment not recognized Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Company volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Revolving credit facility Lines of Credit, Fair Value Disclosure Position [Domain] Position [Domain] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Level 1 Fair Value, Inputs, Level 1 [Member] Liabilities settled and divested Asset Retirement Obligation, Liabilities Settled Lease operating expenses Operating Lease, Expense Natural gas sales Natural Gas, Production [Member] Proceeds from joint venture Proceeds from joint ventures Proceeds from joint ventures Oil and natural gas properties, full cost method of accounting ($8,430 million and $7,493 million excluded from amortization at March 31, 2021 and December 31, 2020, respectively) Gross oil and natural gas properties Oil and Gas Property, Full Cost Method, Gross Real Estate [Abstract] Real Estate [Abstract] 7.125% Medium-term Notes, Series B, due 2028 7.125% Medium Term Notes Series B [Member] 7.125% Medium Term Notes Series [Member] Investment in real estate, net Real Estate Investments, Net Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Phantom Share Units (PSUs) Phantom Share Units (PSUs) [Member] Natural gas liquid sales Natural Gas Liquids Production [Member] Process related to upstream activity for viscous liquid derived from flammable gas occurring naturally underground. Restricted Stock Awards & Units (in Shares) Awards & Units (in shares) Phantom Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Other Increase (Decrease) in Other Operating Assets and Liabilities, Net Non-current: Derivative Liability, Non-Current [Abstract] Derivative Liability, Non-Current Debt Instrument [Axis] Debt Instrument [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Derivative, Settlement Month [Domain] Derivative, Settlement Month [Domain] Derivative, Settlement Month Number of installments Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other than Options, Number Of Installments Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other than Options, Number Of Installments ASSET RETIREMENT OBLIGATIONS Asset Retirement Obligation Disclosure [Text Block] Partner Type [Axis] Partner Type [Axis] Accrued capital expenditures included in accounts payable and accrued expenses Increase (Decrease) in Accrued Capital Expenditures Increase (Decrease) in Accrued Capital Expenditures Operating Segments Operating Segments [Member] Other Other Operating Activities, Cash Flow Statement Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] EPIC Crude Holdings, LP Epic Pipeline [Member] Epic Pipeline [Member] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Oil sales Oil Exploration and Production [Member] Process related to upstream activity for viscous liquid derived from petroleum occurring naturally underground. Activity includes, but is not limited to, exploration, development and production. Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Shares Outstanding (in Shares) Balance at beginning of period (in Shares) Balance at end of period (in Shares) Common Stock, Shares, Outstanding Equity method investments Equity Method Investments Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Other operating income Other Operating Income Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Financing portion of net cash received (paid) for derivative instruments Payments for (Proceeds from) Derivative Instrument, Financing Activities WTI WTI [Member] WTI Long-term debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt Subsequent Event Subsequent Event [Member] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Shares authorized (in Shares) Common Stock, Shares Authorized OMOG JV LLC OMOG JV LLC [Member] OMOG JV LLC [Member] Results of the company business segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Asset Acquisition [Line Items] Schedule of Asset Acquisition [Line Items] Schedule of Asset Acquisition Derivative instruments Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Derivative Instrument Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Derivative Instrument Liabilities Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Income Statement [Abstract] Income Statement [Abstract] Schedule of asset acquisition Schedule Of Asset Acquisition [Table Text Block] Schedule Of Asset Acquisition Repayment of senior notes Repurchase of debt Repayments of Senior Debt Prepaid expenses and other Increase (Decrease) in Prepaid Expense and Other Assets Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Use of Estimates Use of Estimates, Policy [Policy Text Block] Current assets: Assets, Current [Abstract] Volume (Bbls) Derivative, Nonmonetary Notional Amount, Volume Schedule of change in ownership interest Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block] Williston Basin Williston Basin [Member] Williston Basin Costless Collar Costless Collar [Member] Costless Collar Weighted average differential (per Bbl) Derivative, Weighted Average Differential Derivative, Weighted Average Differential Scenario [Domain] Scenario [Domain] Proved properties Costs Incurred, Acquisition of Oil and Gas Properties with Proved Reserves Legal Entity [Axis] Legal Entity [Axis] City Area Code City Area Code Consolidation Items [Domain] Consolidation Items [Domain] Document Period End Date Document Period End Date Property and equipment: Property, Plant and Equipment [Abstract] Production and ad valorem taxes Production Tax Expense (Income) loss from equity investment Income (Loss) from Equity Method Investments Other property, equipment and land Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Property, Plant And Equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Property, Plant And Equipment Net income (loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Jan. - Mar. Derivative, Settlement Month Eight [Member] Derivative, Settlement Month Eight 4.750% Senior Notes due 2025 4.750% Senior Notes due 2025 [Member] 4.750% Senior Notes due 2025 Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Proceeds from senior notes Proceeds from Issuance of Senior Long-term Debt Additional liabilities incurred Asset Retirement Obligation, Liabilities Incurred Southern Midland Basin And Delaware Basin Southern Midland Basin And Delaware Basin [Member] Southern Midland Basin And Delaware Basin Equity-based compensation capitalized pursuant to full cost method of accounting for oil and natural gas properties Share-based Payment Arrangement, Amount Capitalized Equity-based compensation expense Share-based Payment Arrangement, Noncash Expense Repurchased units under buyback programs Stock Repurchased During Period, Value Derivative, Settlement Year [Domain] Derivative, Settlement Year [Domain] Derivative, Settlement Year Entity [Domain] Entity [Domain] Other Proceeds from (Payments for) Other Financing Activities Cover [Abstract] Cover [Abstract] Current: Derivative Asset, Current [Abstract] Derivative Asset, Current Accounts payable - trade Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Natural gas sales Natural Gas Income [Member] Natural Gas Income Real estate assets, estimated useful lives Property, Plant and Equipment, Useful Life Consideration at closing Disposal Group, Including Discontinued Operation, Consideration, Closing Disposal Group, Including Discontinued Operation, Consideration, Closing Weighted Average Fixed Price (per Bbl/MMBtu/Gallon) Derivative, Swap Type, Fixed Price Total debt, net Long-term Debt Tenant improvements Tenant Improvements Argus WTI Midland Argus WTI Midland [Member] Argus WTI Midland Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Federal net losses Federal Income Tax Expense (Benefit), Continuing Operations Revenues and royalties payable Increase (Decrease) in Deferred Revenue Fair value of Diamondback common stock issued Asset Acquisition, Fair Value Common Stock Issued Asset Acquisition, Fair Value Common Stock Issued Closing price per share of Diamondback common stock on the closing date (USD per share) Asset Acquisition, Share Price Asset Acquisition, Share Price Asset retirement obligations Asset retirement obligations - long-term Asset Retirement Obligations, Noncurrent Production capacity (BO/d) Conventional And Noncore Assets Divested, Volume Conventional And Noncore Assets Divested, Volume OIL Crude Oil [Member] Cost of goods and services sold Cost of Goods and Services Sold Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Total costs and expenses Costs and Expenses Equity Components [Axis] Equity Components [Axis] Gross Amounts Offset in Balance Sheet Derivative Liability, Fair Value, Gross Asset, Noncurrent Derivative Liability, Fair Value, Gross Asset, Noncurrent Accounts receivable - oil and natural gas sales, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Gross Amounts Offset in Balance Sheet Derivative Asset, Fair Value, Gross Liability. Non-Current Derivative Asset, Fair Value, Gross Liability. Non-Current Repurchased principal amount Debt Instrument, Repurchased Face Amount Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Rattler LLC Rattler LLC [Member] Rattler LLC [Member] Minimum Minimum [Member] Amount attributable to assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Noncurrent federal taxes receivable Income Taxes Receivable, Noncurrent Impairments in equity method investments Equity Method Investment, Other than Temporary Impairment Remaining debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Net income (loss) attributable to non-controlling interest Net Income (Loss) Attributable to Noncontrolling Interest Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Summary of derivative contract gains and losses included in the consolidated statements of operations Derivative Instruments, Gain (Loss) [Table Text Block] Forfeited (in USD per share) 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 Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Entity Interactive Data Current Entity Interactive Data Current 4.625% Notes due 2021 4.625% Notes due 2021 [Member] 4.625% Notes due 2021 [Member] Revenues: Revenues [Abstract] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] CAPITAL STOCK AND EARNINGS PER SHARE Stockholders' Equity Note Disclosure [Text Block] Real Estate [Line Items] Real Estate [Line Items] Commodity contracts Commodity Contract [Member] Customer [Domain] Customer [Domain] Land improvements Land Improvements [Member] Additional paid-in capital Additional Paid in Capital, Common Stock Entity Registrant Name Entity Registrant Name Subsequent Event Type [Domain] Subsequent Event Type [Domain] Derivative [Table] Derivative [Table] Business Acquisition [Line Items] Business Acquisition [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Total real estate assets Real Estate Investment Property, at Cost Eliminations Intersegment Eliminations [Member] Other operating expense Other Cost and Expense, Operating Unamortized debt issuance costs Debt Issuance Costs, Net Accrued capital expenditures Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Accrued Capital Expenditures Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Accrued Capital Expenditures Guidon Operating LLC And QEP Resources Guidon Operating LLC And QEP Resources [Member] Guidon Operating LLC And QEP Resources Other Property and Equipment, Net Property, Plant and Equipment, Other Types [Member] July - Sep. Derivative, Settlement Month Two [Member] Derivative, Settlement Month Two Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Dividends to stockholders Payments of Ordinary Dividends, Common Stock Effective percentage Debt Instrument, Interest Rate, Effective Percentage Consolidation Items [Axis] Consolidation Items [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Oil and natural gas sales, net Accounts Receivable, after Allowance for Credit Loss, Current Ownership percentage Noncontrolling Interest, Ownership Percentage by Parent Schedule of Cash, Cash Equivalents and Restricted Cash Schedule of Cash and Cash Equivalents [Table Text Block] Purchase of business and assets, net Payments to Acquire Oil and Gas Property Entity Address, Postal Zip Code Entity Address, Postal Zip Code Acquisition related costs, incurred by QEP Business Combination, Acquisition Related Costs, Incurred By Aquiree Business Combination, Acquisition Related Costs, Incurred By Aquiree Non-current: Derivative Asset, Non-Current [Abstract] Derivative Asset, Non-Current Disposed of by Sale Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Basic earnings per common share (in USD per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Document Transition Report Document Transition Report Impairment of oil and natural gas properties Impairment of Oil and Gas Properties Summary of grant-date fair values of performance restricted stock units granted and related assumptions Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Other long-term liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] July - Dec. Derivative, Settlement Month Five [Member] Derivative, Settlement Month Five Dividends declared per share (in USD per share) Common Stock, Dividends, Per Share, Declared Restricted cash Restricted Cash and Cash Equivalents, Current Aggregate principal amount Debt Instrument, Face Amount Level 2 Fair Value, Inputs, Level 2 [Member] Potential consideration Disposal Group, Including Discontinued Operation, Consideration Fair value measurement information for financial instruments measured on a nonrecurring basis Fair Value Measurements, Nonrecurring [Table Text Block] Short Short [Member] Document Quarterly Report Document Quarterly Report Vesting [Axis] Vesting [Axis] Weighted Average Put Price (USD per Bbl) Derivative, Put Price Derivative, Put Price General and administrative expenses General and Administrative Expense [Member] Equity [Abstract] Equity [Abstract] Basis of Presentation Basis of Accounting [Text Block] Revenues and royalties payable Contract with Customer, Liability, Current Subsequent Event [Line Items] Subsequent Event [Line Items] Accounts payable - trade Accounts Payable, Trade, Current Volume, energy measure (MMBtu) Derivative, Nonmonetary Notional Amount, Energy Measure Derivative Contract [Domain] Derivative Contract [Domain] Diluted (in shares) Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic (in USD per share) Basic net income attributable to common stock (in USD per share) Earnings Per Share, Basic Debt, redemption price, percentage upon change of control triggering event Debt Instrument, Redemption Price, Percentage, Upon Change Of Control Triggering Event Debt Instrument, Redemption Price, Percentage, Upon Change Of Control Triggering Event Other income (expense): Other Income and Expenses [Abstract] Number of business segments Number of Operating Segments Entity File Number Entity File Number Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Debt Disclosure [Abstract] Debt Disclosure [Abstract] 3.250% Senior Notes due 2026 3.250% Senior Notes Due 2026 [Member] 3.250% Senior Notes Due 2026 [Member] Fair value of assets acquired: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Common stock, $0.01 par value; 200,000,000 shares authorized; 180,984,014 and 158,088,182 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively Common Stock, Value, Outstanding Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities General and administrative expenses Share-based Payment Arrangement, Expense 5.375% Senior Notes due 2022(1) 5.375% Senior Notes Due 2022 [Member] 5.375% Senior Notes Due 2022 Disposal Group Name [Axis] Disposal Group Name [Axis] Document Fiscal Year Focus Document Fiscal Year Focus Expandable amount Line of Credit Facility, Maximum Borrowing Capacity, Subject To Commitments Line of Credit Facility, Maximum Borrowing Capacity, Subject To Commitments Deferred income taxes Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Consideration upon first anniversary of closing Disposal Group, Including Discontinued Operation, Consideration, First Anniversary Of Closing Disposal Group, Including Discontinued Operation, Consideration, First Anniversary Of Closing Current maturities of long-term debt Current maturities of long-term debt Long-term Debt, Current Maturities Entity Current Reporting Status Entity Current Reporting Status Assets: Derivative Asset [Abstract] Accrued capital expenditures Accrued Capital Expenditures Accrued Capital Expenditures Position [Axis] Position [Axis] Less: accumulated depreciation Real Estate Owned, Accumulated Depreciation Subsequent Event [Table] Subsequent Event [Table] Weighted Average Floor Price (USD per Bbl) Derivative, Floor Price Exercise of stock options and issuance of restricted stock units and awards (in Shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Change in ownership of consolidated subsidiaries, net Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Net Net assets acquired and liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Non-controlling interest Stockholders' Equity Attributable to Noncontrolling Interest Granted (in USD per share) 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 Business acquisition, share price (in USD per share) Business Acquisition, Share Price Oil and natural gas properties, amortization excluded Not subject to depletion Capitalized Costs of Unproved Properties Excluded from Amortization, Cumulative Gathering and transportation Natural Gas, Gathering, Transportation, Marketing and Processing [Member] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Shares Issued (in Shares) Common Stock, Shares, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Direct operating expenses Business Combination, Pro Forma Information, Direct Operating Expenses since Acquisition Date, Actual Business Combination, Pro Forma Information, Direct Operating Expenses since Acquisition Date, Actual Viper revolving credit facility Viper Credit Facility [Member] Revolving credit facility entered into by Viper Energy Partners, LP, a subsidiary of the reporting entity. Long-term debt Long-term Debt, Excluding Current Maturities Segment Reporting [Abstract] Segment Reporting [Abstract] Exchange ratio (in shares) Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Entity Shares Issued Per Acquiree Share Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Entity Shares Issued Per Acquiree Share Acquisitions of mineral interests Payments to Acquire Mineral Rights Accounts receivable Increase (Decrease) in Accounts Receivable Debt Instrument [Line Items] Debt Instrument [Line Items] Total Diamondback Energy, Inc. stockholders’ equity Stockholders' Equity Attributable to Parent Business combination, total consideration Total consideration Business Combination, Consideration Transferred Schedule of acquisition consideration paid Schedule of Business Acquisitions by Acquisition, Equity Interest Issued or Issuable [Table Text Block] Jan. - Dec. Derivative, Settlement Month Six [Member] Derivative, Settlement Month Six Area of land (in acre) Area of Land Total liabilities and equity Liabilities and Equity Buildings Buildings and Improvements, Gross Total shares of QEP common stock eligible for merger consideration (in shares) Number of shares to be issued in acquisition (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Other property, equipment and land Property, Plant and Equipment, Other, Gross Share based compensation arrangement by share based payment maximum award potential (in shares) Share Based Compensation Arrangement by Share Based Payment Maximum Award Potential The maximum number of shares that can be awarded assuming maximum performance earned. INCOME TAXES Income Tax Disclosure [Text Block] Oil sales Oil Income [Member] Oil Income Entity Address, City or Town Entity Address, City or Town Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Brent Brent [Member] Brent Accounts receivable - joint interest and other, net Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Assets, Oil and Gas Joint Interest Billing Receivables, Current Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Assets, Oil and Gas Joint Interest Billing Receivables, Current Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Number of additional wells Asset Acquisition, Number Of Additional Wells Asset Acquisition, Number Of Additional Wells Income (loss) from operations Pro forma income (loss) from operations Amount before tax of pro forma income (loss) from continuing operations as if the business combination had been completed at the beginning of a period. Amount attributable to liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Financial Instrument [Axis] Financial Instrument [Axis] Rattler 5.625% Senior Notes due 2025 5.625% Senior Notes Due 2025 [Member] 5.625% Senior Notes Due 2025 Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Rattler Midstream LP Long-Term Incentive Plan Rattler Midstream LP Long-Term Incentive Plan [Member] Rattler Midstream LP Long-Term Incentive Plan [Member] Equity Component [Domain] Equity Component [Domain] Derivative instruments Derivative instruments Derivative Asset, Noncurrent REAL ESTATE ASSETS Real Estate Disclosure [Text Block] Property and equipment, net Property, Plant and Equipment, Net Entity Tax Identification Number Entity Tax Identification Number Revenue from Contracts with Customers Revenue from Contract with Customer [Policy Text Block] Interest expense, net Interest Income (Expense), Nonoperating, Net Interest rate swaps Interest Rate Contract [Member] EQUITY-BASED COMPENSATION Share-based Payment Arrangement [Text Block] Number of shares issued (in shares) Shares of Diamondback common stock issued at closing (shares) Asset Acquisition, Equity Interest Issued Or Issuable, Number Of Shares Asset Acquisition, Equity Interest Issued Or Issuable, Number Of Shares Net income (loss) attributable to Diamondback Energy, Inc. Net income (loss) attributable to common stock Net income (loss) attributable to the Company Net Income (Loss) Attributable to Parent Distributions to non-controlling interest Payments to Noncontrolling Interests Investment, Name [Domain] Investment, Name [Domain] Unamortized premium costs Debt Instrument, Unamortized Premium Waha Hub Waha Hub [Member] Waha Hub Total current assets Assets, Current Current Fiscal Year End Date Current Fiscal Year End Date Unit-based compensation Noncontrolling Interest, Increase from Unit-based Compensation Noncontrolling Interest, Increase from Unit-based Compensation March 2021 Notes March 2021 Notes [Member] March 2021 Notes Earnings (loss) per common share: Earnings Per Share [Abstract] Schedule of Asset Acquisition [Table] Schedule of Asset Acquisition [Table] Schedule of Asset Acquisition Other income (expense), net Other Nonoperating Income Depreciation, depletion, amortization and accretion Depreciation, Depletion and Amortization Excluding Amortization of Financing Costs Depreciation, Depletion and Amortization Excluding Amortization of Financing Costs Disposal Group Name [Domain] Disposal Group Name [Domain] Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Total Gross Fair Value Derivative Liability, Fair Value, Gross Liability, Noncurrent Derivative Liability, Fair Value, Gross Liability, Noncurrent Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] 2021 Derivative Settlement, Year One [Member] Derivative Settlement, Year One Debt, redemption price, percentage Debt Instrument, Redemption Price, Percentage Entity Filer Category Entity Filer Category The effects of stock-based compensation plans and related costs Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Common Stock Common Stock [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Product and Service [Domain] Product and Service [Domain] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Number of letters of credit outstanding Number Of Letters Of Credit Outstanding Number Of Letters Of Credit Outstanding Schedule of real estate assets Real Estate Investment Financial Statements, Disclosure [Table Text Block] Cash consideration Payments for Asset Acquisitions Payments for Asset Acquisitions Unproved properties Costs Incurred, Acquisition of Unproved Oil and Gas Properties Schedule of property and equipment Property, Plant and Equipment [Table Text Block] Basis Swap Basis Swap [Member] 5.250% Senior Notes due 2023(1) 5.250% Senior Notes due 2023 [Member] 5.250% Senior Notes due 2023 Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Revenues and royalties payable Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Contract with Customer Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Contract with Customer Tenant improvements Leasehold Improvements [Member] Oil and natural gas properties: Oil and Gas Property [Abstract] 4.400% Senior Notes due 2051 4.400% Senior Notes due 2051 [Member] 4.400% Senior Notes due 2051 Amarillo Rattler, LLC(2) Amarillo Rattler, LLC [Member] Amarillo Rattler, LLC [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Debt instrument stated interest rate Debt Instrument, Interest Rate, Stated Percentage 3.125% Senior Notes due 2031 3.125% Senior Notes due 2031 [Member] 3.125% Senior Notes due 2031 Accumulated depletion, depreciation, amortization and impairment Accumulated depletion and depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Diluted: Earnings Per Share, Diluted [Abstract] Change from net income (loss) attributable to the Company's stockholders and transfers to non-controlling interest Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net Weighted average rate Long-term Debt, Weighted Average Interest Rate, over Time Midstream services Natural Gas, Midstream [Member] Total consideration Total consideration Asset Acquisition, Consideration Transferred Asset Acquisition, Consideration Transferred Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Total other income (expense), net Nonoperating Income (Expense) Phantom units activity Schedule of Nonvested Share Activity [Table Text Block] NATURAL GAS LIQUIDS Natural Gas Liquids [Member] Argus WTI Houston WTI Houston Argus [Member] WTI Houston Argus Oil and natural gas properties, net Capitalized Costs, Oil and Gas Producing Activities, Net Percentage of outstanding debt Repurchase Of Debt, Percentage Of Outstanding Debt Repurchase Of Debt, Percentage Of Outstanding Debt Proceeds from divestiture Proceeds from Sale of Oil and Gas Property and Equipment Common stock issued for business combinations Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued, Value Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued, Value Basic (in shares) Basic weighted average common units outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Costs and expenses: Costs and Expenses [Abstract] Risk-free rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Subsequent Events [Abstract] Subsequent Events [Abstract] Ownership [Axis] Ownership [Axis] Production Capacity (BOE/d) Conventional And Noncore Assets Divested, Energy Conventional And Noncore Assets Divested, Energy Ownership [Domain] Ownership [Domain] Reported Value Measurement Reported Value Measurement [Member] Plan Name [Domain] Plan Name [Domain] Equity method interest investment ownership percentage Equity Method Investment, Ownership Percentage REVENUE FROM CONTRACTS WITH CUSTOMERS Revenue from Contract with Customer [Text Block] Southern Midland Basin Southern Midland Basin [Member] Southern Midland Basin Total equity Balance at beginning of period Balance at end of period Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Asset retirement obligations Schedule of Asset Retirement Obligations [Table Text Block] Debt, fair value Long-term Debt, Fair Value Total revenues Revenues Revenues Class of Stock [Axis] Class of Stock [Axis] Cash received on contract Derivative, Cash Received on Hedge Schedule of derivative contracts Schedule of derivative contracts by Company subsequent aggregating weighted average contract Schedule of Derivative Instruments [Table Text Block] Provision for (benefit from) income taxes Provision for (benefit from) income taxes Income Tax Expense (Benefit) Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period(1) Total cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents DrillCo Agreement DrillCo Agreement [Member] DrillCo Agreement Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Accumulated impairment Capitalized Costs Accumulated Impairment Capitalized costs of accumulated impairment for oil and natural gas properties Diluted (in USD per share) Diluted net income attributable to common stock (in USD per share) Earnings Per Share, Diluted Local Phone Number Local Phone Number Impairment of midstream assets Impairment Of Midstream Assets Impairment Of Midstream Assets Acquisition pro forma information Business Acquisition, Pro Forma Information [Table Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Tranche One Share-based Payment Arrangement, Tranche One [Member] Revenues Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Derivative [Line Items] Derivative [Line Items] Accounts receivable: Accounts Receivable, after Allowance for Credit Loss, Current [Abstract] Midstream assets Pipeline and Gas Gathering Assets Pipeline and Gas Gathering Assets Long-term debt, gross Outstanding borrowings Long-term Debt, Gross Business Combination, Consideration Transferred [Abstract] Business Combination, Consideration Transferred [Abstract] Schedule of long-term debt Schedule of Long-term Debt Instruments [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Energy [Domain] Energy [Domain] Entity Emerging Growth Company Entity Emerging Growth Company Net cash received (paid) on settlements Gain (Loss) on Sale of Derivatives NATURAL GAS Natural Gas [Member] Revenues Business Acquisition, Pro Forma Revenue Provision for (benefit from) deferred income taxes Deferred Income Tax Expense (Benefit) Additional shares of Diamondback common stock to be issued as merger consideration (in shares) Business Acquisition, Equity Interest Issued Or Issuable, Number Of Shares, Additional Shares Business Acquisition, Equity Interest Issued Or Issuable, Number Of Shares, Additional Shares Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Award Type [Axis] Award Type [Axis] Weighted Average Grant-Date Fair Value Weighted Average Exercise Price (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 [Abstract] Weighted Average Ceiling Price (USD per Bbl) Derivative, Cap Price Aggregated fair value of restricted stock Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Maximum Maximum [Member] Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Non-Controlling Interest Noncontrolling Interest [Member] Swaption Swaption [Member] Gain (loss) on revaluation of investment Gain (Loss) on Investments Dividend paid Dividends, Common Stock, Cash Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Measurement Basis [Axis] Measurement Basis [Axis] Revisions in estimated liabilities Asset Retirement Obligation, Revision of Estimate Delaware Basin Delaware Basin [Member] Delaware Basin Fair value of assets and liabilities measured on a recurring and nonrecurring basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Effective income tax rate Effective Income Tax Rate Reconciliation, Percent SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities 0.900% Senior Notes due 2023 0.900% Senior Notes due 2023 [Member] 0.900% Senior Notes due 2023 Drilling, completions and non-operated additions to oil and natural gas properties Payments to Explore and Develop Oil and Gas Properties Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Income tax receivable Increase (Decrease) in Income Taxes Receivable Award Type [Domain] Award Type [Domain] Offsetting Liabilities Offsetting Liabilities [Table Text Block] Oil and natural gas properties Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Oil And Gas Properties Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Oil And Gas Properties Trading Symbol Trading Symbol 2.875% Senior Notes due 2024 2.875% Senior Notes due 2024 [Member] 2.875% Senior Notes due 2024 [Member] Liabilities acquired Asset Retirement Obligation, Liabilities Acquired The increase in asset retirement obligations related to properties acquired. Disposal Group Classification [Domain] Disposal Group Classification [Domain] Contractual obligations Other Commitment PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Asset Retirement Obligation [Abstract] Asset Retirement Obligation [Abstract] Natural gas liquid sales Natural Gas Liquids Income [Member] Natural Gas Liquids Income Joint interest and other, net Oil and Gas Joint Interest Billing Receivables, Current Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Current liabilities: Liabilities, Current [Abstract] Entity Shell Company Entity Shell Company Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Accretion expense Asset Retirement Obligation, Accretion Expense Recurring Fair Value, Recurring [Member] Total investment in land and buildings, net Real Estate Investment Property, Net Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Proceeds from borrowings under credit facilities Proceeds from Lines of Credit Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Basic: Earnings Per Share, Basic [Abstract]