Position [Axis] Position [Axis] Proceeds from warrants exercised Proceeds from Warrant Exercises Stock repurchase program authorized amount Stock Repurchase Program, Authorized Amount Letters of Credit Letter of Credit [Member] NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK Net Income (Loss) Attributable to Parent Entity Emerging Growth Company Entity Emerging Growth Company Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Ventura Basin Ventura Basin [Member] Ventura Basin Preferred stock, outstanding shares (in shares) Preferred Stock, Shares Outstanding Interest cost Defined Benefit Plan, Interest Cost Accrued employee-related costs Employee-related Liabilities, Current Income Statement Location [Axis] Income Statement Location [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Entity Address, Address Line One Entity Address, Address Line One Net Fair Value Derivative Liability 2023 Production 2023 [Member] Production 2023 Oil Oil and Condensate [Member] Cancelled or Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Additional paid-in capital Additional Paid in Capital, Common Stock Entity Filer Category Entity Filer Category Numerator for Basic and Diluted EPS Earnings Per Share Reconciliation [Abstract] OTHER NONCURRENT ASSETS OTHER NONCURRENT ASSETS Other Assets, Noncurrent Net periodic benefit costs: Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Modification of noncontrolling interest Adjustments To Additional Paid In Capital Modification Of Noncontrolling Interest Adjustments To Additional Paid In Capital Modification Of Noncontrolling Interest Impaired Long-Lived Assets Held and Used by Type [Axis] Impaired Long-Lived Assets Held and Used by Type [Axis] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Contribution from noncontrolling interest holders Proceeds from Noncontrolling Interests Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Retirement Benefits [Abstract] Retirement Benefits [Abstract] Deferred compensation and postretirement Deferred Compensation Liability, Current and Noncurrent Increase (decrease) in cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Share-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Gain on asset divestitures Gain (Loss) on Disposition of Assets ASSETS HELD FOR SALE Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Joint venture working interest before counterparty return Joint Venture Working Interest Retained In Properties Joint Venture Working Interest Retained In Properties Document Fiscal Year Focus Document Fiscal Year Focus EHP Notes EHP Notes [Member] EHP Notes Subsequent Event Type [Domain] Subsequent Event Type [Domain] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Lease liability Lease Liability Noncurrent Lease Liability Noncurrent Other current assets Other Current Assets [Member] Proceeds from Senior Notes Proceeds from Issuance of Senior Long-term Debt Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Actuarial gain associated with pension and postretirement plans Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Puts Put Option [Member] Subsequent Events [Abstract] Subsequent Events [Abstract] Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Business Acquisition [Axis] Business Acquisition [Axis] Benefit Street Partners Benefit Street Partners [Member] Represents Benefit Street Partners (BSP). Summary of changes in cash and stock-settled Performance Stock Units (PSUs) Share-based Payment Arrangement, Performance Shares, Activity [Table Text Block] PROPERTY, PLANT AND EQUIPMENT Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Disposal Group Name [Axis] Disposal Group Name [Axis] Schedule of Asset Impairments Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block] Award Type [Domain] Award Type [Domain] Stock Option Equity Option [Member] Credit Facility [Domain] Credit Facility [Domain] Debt instrument, repurchased face amount Debt Instrument, Repurchased Face Amount1 Face (par) amount of the original debt instrument that was repurchased during the period. Other Unrecovered Capital Costs Unrecovered Capital Costs Recognized actuarial loss Defined Benefit Plan, Amortization of Gain (Loss) 7.125% Unsecured Debt Notes Due 2026 7.125% Unsecured Debt Notes Due 2026 [Member] 7.125% Unsecured Debt Notes Due 2026 DERIVATIVES Derivative Instruments and Hedging Activities Disclosure [Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Preferred stock (20,000,000 shares authorized at $0.01 par value) no shares outstanding at September 30, 2021 and December 31, 2020 Preferred Stock, Value, Issued Borrowing base Line of Credit Facility, Borrowing Base Line of Credit Facility, Borrowing Base 2014 Revolving Credit Facility 2014 Revolving Credit Facility [Member] 2014 Revolving Credit Facility Member Contributions deferred Defined Benefit Plan, Plan Assets, Contributions By Employer, Amount Deferred Defined Benefit Plan, Plan Assets, Contributions By Employer, Amount Deferred Entity Address, City or Town Entity Address, City or Town Total derivatives Derivative Assets (Liabilities), at Fair Value, Net Accumulated Deficit Retained Earnings [Member] Debt Instrument [Axis] Debt Instrument [Axis] Percentage of payouts target awards Percent Of Target Award That Would Settle Fully Stock Percent of the target award that would settle, once certified, fully in stock, including awards that were originally designated to settle in cash but were modified to settle in stocks. NONCURRENT LIABILITIES Liabilities, Noncurrent [Abstract] Debtor-in-possession financing costs Payments For Debtor In Possession Financing Costs Payments For Debtor In Possession Financing Costs LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Unamortized deferred gain and issuance costs, net Debtor Reorganization Items, Gain (Loss) on Settlement of Other Claims, Net Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Electricity generation expenses Electricity Generation Expenses [Member] Electricity Generation Expenses Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Schedule of Other Long-term Liabilities Other Noncurrent Liabilities [Table Text Block] Forecast period (in years) Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Forecast Period Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Forecast Period Entity Interactive Data Current Entity Interactive Data Current Availability Line of Credit Facility, Remaining Borrowing Capacity Gain (loss) on disposition of business Gain (Loss) on Disposition of Business Basic (in dollars per share) Earnings Per Share, Basic Proceeds from sale of oil and gas Proceeds from Sale of Oil and Gas Property and Equipment Unvested, beginning of year (in shares) Unvested, end of year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Document Type Document Type Amounts due from joint interest partners Due from Joint Ventures Prepaid expenses Prepaid Expense, Current Schedule of Disaggregated Revenue Disaggregation of Revenue [Table Text Block] Transportation costs Transportation Costs [Member] Transportation Costs Number of Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Entity Current Reporting Status Entity Current Reporting Status 48 Month Period Derivative Instrument, Period Three [Member] Derivative Instrument, Period Three Other non-cash charges to income, net Other Noncash Income (Expense) Gross Amounts at Fair Value Derivative Asset, Fair Value, Gross Asset Expected cash consideration Disposal Group, Maximum Cash Consideration Disposal Group, Maximum Cash Consideration Deficiency payment on a pipeline delivery contract Deficiency Payment On Pipeline Delivery Contract Deficiency Payment On Pipeline Delivery Contract Fair Value of Derivatives Offsetting Assets [Line Items] Principal amount Long-term Debt, Gross Debt instrument, covenant leverage ratio Debt Instrument, Covenant Leverage Ratio Debt Instrument, Covenant Leverage Ratio Long-term debt, net Long-term Debt CASH FLOW FROM INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities [Abstract] Document Transition Report Document Transition Report Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Other Other Accrued Liabilities, Current Number of non-executive employees Share-based Payment Arrangement, Plan Modification, Number of Grantees Affected Derivative period Derivative, Terms, Period Derivative, Terms, Period Schedule of Other Current Assets, Net Schedule of Other Current Assets [Table Text Block] NGLs Propane [Member] Offsetting Assets [Table] Offsetting Assets [Table] EARNINGS PER SHARE Earnings Per Share [Text Block] Repurchases of common stock Repurchases of common stock Treasury Stock, Value, Acquired, Cost Method Fair value of derivative contracts Derivative Liability, Current Q4 2021 Fourth Quarter Production 2021 [Member] Fourth Quarter Production 2021 OPERATING EXPENSES Operating Expenses [Abstract] Treasury stock acquired, average price per share (in dollar per share) Treasury Stock Acquired, Average Cost Per Share Payments of cash-based portion of awards Share-based Payment Arrangement, Cash Used to Settle Award Changes in accrued capital investments Increase Decrease In Capital Investment Accrual Represents the information pertaining to changes in capital investment accruals Legal, professional and other, net Debtor Reorganization Items, Legal and Advisory Professional Fees Crude Oil Hedge Positions Energy Related Derivative [Member] Minimum Minimum [Member] Month 25 Through Month 36 Derivative Instrument, Period Two [Member] Derivative Instrument, Period Two Outstanding letters of credit Long-term Line of Credit Idle well fees Idle Well Fees Idle Well Fees Balance Sheet Location [Domain] Balance Sheet Location [Domain] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] General and administrative expenses Selling, General and Administrative Expense Q1 2022 First Quarter Production 2022 [Member] First Quarter Production 2022 Debt issuance costs Debt Issuance Costs, Net Other comprehensive income: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Preferred stock, authorized shares (in shares) Preferred Stock, Shares Authorized Proceeds from asset divestitures Proceeds from Sale of Productive Assets Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate ACQUISITIONS AND DIVESTITURES Acquisitions And Divestitures [Text Block] Acquisitions And Divestitures Text Block Modification of noncontrolling interest Noncontrolling Interest In Net Income Loss Of Return Noncontrolling Interest In Net Income Loss Of Return Fair value of derivative contracts Derivative Asset, Current Trading Symbol Trading Symbol CURRENT LIABILITIES Liabilities, Current [Abstract] Mezzanine equity Net (loss) income Noncontrolling Interest in Net Income (Loss) Joint Venture Partners, Redeemable Class of Warrant or Right [Table] Class of Warrant or Right [Table] Issuance of common stock Stock Issued During Period, Value, New Issues First 24 Months Derivative Instrument, Period One [Member] Derivative Instrument, Period One Repurchase value of the principal amounts Early Repayment of Senior Debt Acquisitions Payments to Acquire Businesses, Net of Cash Acquired Line of Credit Line of Credit [Member] STOCK-BASED COMPENSATION Share-based Payment Arrangement [Text Block] Senior Notes (Unsecured) Senior Notes [Member] INVENTORIES Inventory Disclosure [Text Block] Accumulated depreciation, depletion and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Derivative Instrument [Axis] Derivative Instrument [Axis] Joint Venture With Macquarie Infrastructure And Real Assets Inc Joint Venture With Macquarie Infrastructure And Real Assets Inc [Member] Joint Venture With Macquarie Infrastructure And Real Assets Inc Member Second Lien Notes Senior Lien [Member] Beginning balance Ending balance Redeemable Noncontrolling Interest, Equity, Carrying Amount Calls Call Option [Member] Common stock (200,000,000 shares authorized at $0.01 par value) (83,367,076 and 83,319,660 shares issued; 80,775,277 and 83,319,660 shares outstanding at September 30, 2021 and December 31, 2020) Common Stock, Value, Issued Disaggregation of revenue Disaggregation of Revenue [Line Items] Weighted-average period over which unrecognized compensation expense is expected to be recognized Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Unvested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Postretirement Benefit Other Postretirement Benefits Plan [Member] Subsequent Event [Table] Subsequent Event [Table] Accumulated other comprehensive gain (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Receivables for premiums on derivative contracts Receivables For Premiums On Derivative Contracts, Current Receivables For Premiums On Derivative Contracts, Current Schedule of percentage of payouts target awards Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Reorganization items, net (debtor-in-possession financing costs) Reorganization Items Net Debtor-In-Possession Financing Costs Reorganization Items Net Debtor-In-Possession Financing Costs Proceeds from issuance of debt Proceeds from Issuance of Debt Sold Short [Member] Schedule of Other Noncurrent Assets Schedule of Other Assets, Noncurrent [Table Text Block] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Document Period End Date Document Period End Date Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Operating costs Production Costs [Member] Production Costs Member Class of Stock [Axis] Class of Stock [Axis] Entity Registrant Name Entity Registrant Name Treasury stock (in shares) Treasury Stock, Shares Unproved properties Impairment Of Oil And Gas Properties, Unproved Properties Impairment Of Oil And Gas Properties, Unproved Properties Entity Bankruptcy Proceedings, Reporting Current Entity Bankruptcy Proceedings, Reporting Current Cash Cash Total annual dividend anticipated, common stock (in dollars per share) Common Stock, Dividends, Per Share, Expected Annual Dividend Common Stock, Dividends, Per Share, Expected Annual Dividend Schedule of Other Expenses, Net Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Dividends declared, common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Accrued liabilities Accrued liabilities Accrued Liabilities, Current Oil, natural gas and NGL sales Oil, natural gas and NGL sales Revenue from Contract with Customer, Excluding Assessed Tax Deferred premiums on derivative contracts Premiums Received On Derivative Contracts, Current Premiums Received On Derivative Contracts, Current Ad valorem fees Ad Valorem Fees Ad Valorem Fees Debt repurchases Repayments of Subordinated Debt Schedule of share based compensation expense Schedule Of Share Based Compensation Expense [Table Text Block] Schedule of Share Based Compensation Expense [Table Text Block] Bakersfield Office Building Bakersfield Office Building [Member] Bakersfield Office Building Revenue not from contract with customer Revenue Not from Contract with Customer Equity [Abstract] Equity [Abstract] Net Fair Value Reported Value Measurement [Member] Derivative Instrument, Period [Axis] Derivative Instrument, Period [Axis] Derivative Instrument, Period Common Stock Common Stock [Member] Variable Rate [Axis] Variable Rate [Axis] OPERATING INCOME (LOSS) Operating Income (Loss) Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Weighted-average price (in dollars per barrel) Derivative, Average Price Risk Option Strike Price Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Q3 2022 Third Quarter Production 2022 [Member] Third Quarter Production 2022 Variable Rate [Domain] Variable Rate [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Repayments of debt Repayments of Debt Cash paid for reorganization items Payments For Reorganization Items Payments For Reorganization Items Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Treasury Stock Treasury Stock [Member] Net (loss) gain from commodity derivatives Gain (Loss) on Derivative Instruments, Net, Pretax Summary of changes in cash and stock-settled Restricted Stock Units (RSUs) Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Taxes paid Income Taxes Paid Amortization of deferred gain Amortization Of Deferred Gains And Debt Issuance Cost The amount of amortization of deferred gains and deferred debt issuance costs. Proceeds from lines of credit Proceeds from Lines of Credit Asset impairments Total Asset Impairment Charges Curtailment gain Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment Fair Value of Long-Term Debt Long-term Debt, Fair Value Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Other Payments for (Proceeds from) Other Investing Activities Capital investments Payments to Acquire Property, Plant, and Equipment Sales of purchased natural gas Sale Of Purchased Natural Gas [Member] Sale Of Purchased Natural Gas Employer contributions to pension plan Defined Benefit Plan, Plan Assets, Contributions by Employer Decommissioning obligations satisfaction period Disposal Group, Abandonment Obligations, Satisfaction Period Disposal Group, Abandonment Obligations, Satisfaction Period Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Legal Entity [Axis] Legal Entity [Axis] Mezzanine Equity - Redeemable Noncontrolling Mezzanine Equity Redeemable Noncontrolling Interest [Member] This element represents mezzanine equity redeemable noncontrolling interest. Debt issuance costs Payment for Debt Extinguishment or Debt Prepayment Cost Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Award Type [Axis] Award Type [Axis] CASH FLOW FROM FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities [Abstract] Number of offshore platforms with decommissioning obligations defaulted Number Of Offshore Platforms With Decommissioning Obligations Defaulted Number Of Offshore Platforms With Decommissioning Obligations Defaulted Total equity attributable to common stock Stockholders' Equity Attributable to Parent Emission reduction credits Emission Reduction Credits, Noncurrent Emission Reduction Credits, Noncurrent Common stock, issued shares (in shares) Common Stock, Shares, Issued Acquisitions And Divestitures [Abstract] Acquisitions And Divestitures Abstract Alternative Base Rate Alternative Base Rate [Member] Alternative Base Rate Member Repayments of senior debt Repayments of Senior Debt Net (loss) gain on early extinguishment of debt Net loss (gain) on early extinguishment of debt Loss on extinguishment of debt Pre-tax gain on extinguishment of debt, net of a reduction in deferred issuance costs Gain (Loss) on Extinguishment of Debt Long-term deposits and other Other Assets, Miscellaneous, Noncurrent Repurchases of common stock Payments for Repurchase of Common Stock Changes in operating assets and liabilities, net Increase (Decrease) in Operating Capital Derivative, allocation percent Derivative, Allocation Percent Derivative, Allocation Percent Retirement Plan Type [Axis] Retirement Plan Type [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Lease liability Lease, Liability, Current Lease, Liability, Current Fair value of derivative contracts Derivative Asset, Noncurrent Stockholders' equity Noncontrolling Interest in Net Income (Loss) Joint Venture Partners, Nonredeemable Aggregate principal amount issued Debt Instrument, Face Amount Total Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Discontinued Operations and Disposal Groups [Abstract] Income tax benefit related to stock-based compensation Share-based Payment Arrangement, Expense, Tax Benefit City Area Code City Area Code Accumulated deficit Retained Earnings (Accumulated Deficit) Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Accrued taxes other than on income Accrual for Taxes Other than Income Taxes, Current Restricted Stock Units Restricted Stock Units (RSUs) [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Business Acquisition [Line Items] Business Acquisition [Line Items] Capitalized cost Capitalized Contract Cost, Impairment Loss Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Maximum commitment contribution Total Investment Commitment In Joint Venture, Maximum Represents the total maximum investment commitment in the joint venture. Gross Amounts at Fair Value Estimate of Fair Value Measurement [Member] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Repayments of lines of credit Repayments of Lines of Credit ACCOUNTING AND DISCLOSURE CHANGES Accounting Standards Update and Change in Accounting Principle [Text Block] Other noncurrent assets Other Noncurrent Assets [Member] Power plant interruption Power Plant Interruption Power Plant Interruption Accretion expense Accretion Expense Income taxes Income Tax Expense (Benefit) Total stockholders' equity Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Trade receivables Accounts Receivable, after Allowance for Credit Loss, Current Equity Components [Axis] Equity Components [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total current assets Assets, Current Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Cancelled or Forfeited (in shares) Cancelled or Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Inventories Inventories Inventory, Net Entity File Number Entity File Number Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Hedge Production Periods [Domain] Hedge Production Periods [Domain] Identified production period subject to hedge instruments. Value of shares granted Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture Product and Service [Axis] Product and Service [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Small Business Entity Small Business Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Natural gas Natural Gas, Production [Member] New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Accounting Standards Update and Change in Accounting Principle [Abstract] Equity Component [Domain] Equity Component [Domain] Other Stockholders' Equity, Other Disposal Group Name [Domain] Disposal Group Name [Domain] Statement [Line Items] Statement [Line Items] Total property, plant and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Repayments of debtor-in-possession facilities Payments For Debtor In Possession Financing Payments For Debtor In Possession Financing Deferred financing costs - Revolving Credit Facility Debt Issuance Costs, Noncurrent, Net Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Retirement Plan Type [Domain] Derivative Instrument, Period [Domain] Derivative Instrument, Period [Domain] Derivative Instrument, Period Lien Notes Lien Notes [Member] Lien Notes Increase (decrease) in obligation, pension and other postretirement benefits Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits Other current assets Other Assets Current Abstract No definition required Contributions from noncontrolling interest holders Temporary Equity, Increase From Contributions The amount of increase in temporary equity due to contributions. Joint venture working interest acquired Joint Venture Working Interest Acquired Joint Venture Working Interest Acquired Debt Disclosure [Abstract] Debt Disclosure [Abstract] Accrued liabilities current [abstract] Accrued Liabilities, Current [Abstract] Entity Address, State or Province Entity Address, State or Province INCOME (LOSS) BEFORE INCOME TAXES Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Asset retirement obligations Asset Retirement Obligation, Current Liabilities associated with assets held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Net loss (gain) from commodity derivatives Derivative, Gain (Loss) on Derivative, Net Entity [Domain] Entity [Domain] Number of trading days Share-Based Compensation Arrangement By Share-Based Payment Award, Weighted Average Price, Number Of Trading Days Share-Based Compensation Arrangement By Share-Based Payment Award, Weighted Average Price, Number Of Trading Days Commodity Contracts Commodity Contract [Member] Proceeds from debtor-in-possession facilities Proceed From Debtor In Possession Financing Proceed From Debtor In Possession Financing PENSION AND POSTRETIREMENT BENEFIT PLANS Retirement Benefits [Text Block] Schedule of Calculation of Basic and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Entity Shell Company Entity Shell Company Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Local Phone Number Local Phone Number Other comprehensive income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Net prior service cost credit Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax TOTAL ASSETS Assets Other Other Accrued Liabilities, Noncurrent Exploration expense Exploration Expense Q4 2022 Fourth Quarter Production 2022 [Member] Fourth Quarter Production 2022 Member Common stock, authorized shares (in shares) Common Stock, Shares Authorized Interest paid, net of capitalized amounts Interest Paid, Excluding Capitalized Interest, Operating Activities Net income (loss) available to common stockholders - diluted Net Income (Loss) Available to Common Stockholders, Diluted Net income (loss) available to common stockholders - basic Net Income (Loss) Available to Common Stockholders, Basic Equity Attributable to Noncontrolling Interests Noncontrolling Interest [Member] Products and Services [Domain] Product and Service [Domain] Electricity sales Sale Of Electricity [Member] This member represents electricity sales. Interest rate Debt instrument, interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Derivative Contract [Domain] Derivative Contract [Domain] Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Less: net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Revolving Credit Facility Revolving Credit Facility Revolving Credit Facility [Member] Proved oil and natural gas properties Impairment Of Oil And Gas Properties, Proved Properties Impairment Of Oil And Gas Properties, Proved Properties Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Q2 2022 Second Quarter Production 2022 [Member] Second Quarter Production 2022 [Member] Second Lien Term Loan, EHP Notes, And Revolving Credit Facility Second Lien Term Loan, EHP Notes, And Revolving Credit Facility [Member] Second Lien Term Loan, EHP Notes, And Revolving Credit Facility Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Entity Tax Identification Number Entity Tax Identification Number Other Other Assets, Miscellaneous, Current Subsequent Event [Line Items] Subsequent Event [Line Items] Assets acquisition purchase prices adjustment Assets Acquisition, Purchase Prices Adjustment Assets Acquisition, Purchase Prices Adjustment 2020 Senior Notes Senior Notes 5.00 Percent Due 2020 [Member] Represents the senior notes payable that bear an interest rate of 5.00 percent and will mature in 2020. Basic (in shares) Weighted-average common shares outstanding — basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Reorganization items, net Total reorganization items, net Debtor Reorganization Items, Other Expense (Income) Service cost Defined Benefit Plan, Service Cost SUBSEQUENT EVENTS Subsequent Events [Text Block] Distributions paid to noncontrolling interest holders Distributions paid to noncontrolling interest holders Payments of Ordinary Dividends, Noncontrolling Interest Comprehensive income (loss) attributable to common stock Comprehensive Income (Loss), Net of Tax, Attributable to Parent Shares reserved for future issuance (in shares) Plan Of Reorganization, Common Stock, Capital Shares Reserved For Future Issuance Plan Of Reorganization, Common Stock, Capital Shares Reserved For Future Issuance Prepaid greenhouse gas allowances Prepaid Green House Gas Allowances, Current Prepaid Green House Gas Allowances, Current Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Treasury stock (2,591,799 shares held at cost at September 30, 2021 and no shares held at December 31, 2020) Treasury Stock, Value Weighted average common shares outstanding Denominator for Basic and Diluted EPS Weighted Average Number of Shares Outstanding, Diluted [Abstract] Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Noncurrent - Fair value of derivative contracts Other Noncurrent Liabilities [Member] Fair value of derivative contracts Derivative Liability, Noncurrent Performance Stock Units Performance Stock Units [Member] Performance Stock Units Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Accounts payable Accounts Payable, Current Equity Attributable to Common Stock Parent [Member] Depreciation, depletion and amortization Depreciation, Depletion and Amortization Cash Settled Employee Stock Option And Stock Appreciation Right Cash Settled Employee Stock Option And Stock Appreciation Right [Member] Cash Settled Employee Stock Option And Stock Appreciation Right Member Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Potential common shares for warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Common stock, outstanding shares (in shares) Common Stock, Shares, Outstanding Other operating expenses, net Other expenses, net Other Operating Income (Expense), Net Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity [Roll Forward] Purchased Long [Member] Offshore platforms with decommissioning obligations defaulted period since interest sold Offshore Platforms With Decommissioning Obligations Defaulted, Period Since Interest Sold Offshore Platforms With Decommissioning Obligations Defaulted, Period Since Interest Sold Costs of sales Cost of Goods and Services Sold REVENUES Revenues [Abstract] Reorganization items, net (non-cash) Reorganization Items Net Non-Cash Reorganization Items Net Non-Cash Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Debtor-in-possession financing costs Debtor Reorganization Items, Debtor-in-Possession Facility Financing Costs Other revenue Product and Service, Other [Member] Income Statement Location [Domain] Income Statement Location [Domain] STOCKHOLDERS' EQUITY Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Disposal Group, Held-for-sale, Not Discontinued Operations Disposal Group, Held-for-sale, Not Discontinued Operations [Member] ASSET IMPAIRMENTS Asset Impairment Charges [Text Block] Total operating expenses Operating Expenses Other long-term liabilities Other long-term liabilities Other Liabilities, Noncurrent Schedule of Reorganization Items in Consolidated Statement of Operations Schedule Of Reorganization Items In Consolidated Statement Of Operations And Cash Flows [Table Text Block] Schedule Of Reorganization Items In Consolidated Statement Of Operations And Cash Flows Table Text Block Netting Derivative Asset, Fair Value, Gross Liability OTHER INFORMATION OTHER INFORMATION Other Information abstract Treasury stock, shares, acquired (in shares) Treasury Stock, Shares, Acquired Schedule of Long-term Debt Schedule of Long-term Debt Instruments [Table Text Block] Debt instrument Debt Debt Instrument [Line Items] Net income (loss) attributable to common stock per share Earnings Per Share [Abstract] Earnings Per Share [Abstract] Net Fair Value Derivative Asset Materials and supplies Other Inventory, Supplies, Gross Reclassification of realized losses on pension and postretirement to income, tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax Offshore platforms with decommissioning obligations defaulted percentage Offshore Platforms With Decommissioning Obligations Defaulted, Ownership Percent Offshore Platforms With Decommissioning Obligations Defaulted, Ownership Percent Document Quarterly Report Document Quarterly Report Settlement agreement with joint venture Settlement Agreement With Joint Venture Settlement Agreement With Joint Venture Total operating revenues Revenues Investment warrants, exercise price (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Netting Derivative Liability, Fair Value, Gross Asset Borrowing capacity Line of Credit Facility, Current Borrowing Capacity Deferred premiums on derivative contracts Premiums Received On Derivative Contracts, Noncurrent Premiums Received On Derivative Contracts, Noncurrent Current - Fair value of derivative contracts Other Current Liabilities [Member] Severance and termination costs Severance Costs Finished goods Inventory, Finished Goods, Gross Second Lien Term Loan Second Lien Notes [Member] Second Lien Notes Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Expected term Warrants and Rights Outstanding, Term Additional potential common shares (in shares) Additional Potential Common Shares Additional Potential Common Shares Debt instrument, floor interest rate Debt Instrument, Floor Interest Rate Debt Instrument, Floor Interest Rate Long-term debt, net Long-term Debt, Excluding Current Maturities Long-Term Cash Incentive Awards Long-Term Cash Incentive Awards [Member] Long-Term Cash Incentive Awards Member Total stock-based compensation expense Share-based Payment Arrangement, Expense Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] EPS Earnings Per Share, Basic and Diluted [Abstract] Weighted-Average Grant-Date Fair Value Weighted-Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Effective tax rate Effective Income Tax Rate Reconciliation, Percent Operating costs Production Costs, Period Cost Variable rate debt Variable Rate Debt [Member] Variable Rate Debt Member NET INCOME (LOSS) Net income (loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Daily volume Derivative, Nonmonetary Notional Amount Interest and debt expense, net Interest And Debt Expense, Net Interest And Debt Expense, Net Joint Venture With Benefit Street Partners Joint Venture With Benefit Street Partners [Member] Represents the information pertaining to joint venture with benefit street partners of divestitures and other. Swaps Swap [Member] Cash—beginning of period Cash—end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Summary of Open Derivative Contracts Schedule of Derivative Instruments [Table Text Block] Modification of noncontrolling interest Temporary Equity, Decrease From Modification Of Noncontrolling Interest Temporary Equity, Decrease From Modification Of Noncontrolling Interest Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Postretirement and Other Benefit Plans Disclosure Defined Benefit Plan Disclosure [Line Items] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] CURRENT ASSETS Assets, Current [Abstract] Entity Central Index Key Entity Central Index Key LIBOR London Interbank Offered Rate (LIBOR) [Member] Security Exchange Name Security Exchange Name OTHER INFORMATION Other Information [Text Block] Other Information Disposal Group Classification [Domain] Disposal Group Classification [Domain] Buyer Of Ventura Basin Operations Buyer Of Ventura Basin Operations [Member] Buyer Of Ventura Basin Operations Net settlement payments due on derivative contracts Settlement Liabilities, Current Diluted (in shares) Weighted-average common shares outstanding — diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Maximum production proceeds, decommissioning obligations Disposal Group, Maximum Production Proceeds, Decommissioning Obligations Disposal Group, Maximum Production Proceeds, Decommissioning Obligations Award service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period INCOME TAXES Income Tax Disclosure [Text Block] Accrued interest Interest Payable, Current Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Interest rate added to variable rate basis Debt Instrument, Basis Spread on Variable Rate EQUITY Stockholders' Equity Note Disclosure [Text Block] Schedule of Components of Net Periodic Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Measurement Basis [Axis] Measurement Basis [Axis] Shares issued from warrant exercises (in shares) Stock Issued During Period, Shares, Warrant Exercises Stock Issued During Period, Shares, Warrant Exercises Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] NON-OPERATING (EXPENSES) INCOME Nonoperating Income (Expense) [Abstract] Asset retirement obligations Asset Retirement Obligations, Noncurrent Purchased of working interest share conveyed assets Payments To Acquire Working Interest Share In Conveyed Assets Payments To Acquire Working Interest Share In Conveyed Assets Credit Facility [Axis] Credit Facility [Axis] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] CASH FLOW FROM OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities [Abstract] General and administrative expenses General and Administrative Expense [Member] NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS Net Income (Loss) Attributable to Noncontrolling Interest [Abstract] Derivatives Derivative Instruments and Hedging Activities Disclosures [Line Items] Expected term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Total current liabilities Liabilities, Current Shares cancelled for taxes and other Payment, Tax Withholding, Share-based Payment Arrangement Class of Stock [Domain] Class of Stock [Domain] Derivative, hedging percent Derivative, Terms, Hedging Percent Derivative, Terms, Hedging Percent Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Redemption of noncontrolling interest Adjustment To Additional Paid In Capital, Redemption Of Noncontrolling Interest Adjustment To Additional Paid In Capital, Redemption Of Noncontrolling Interest Entity Address, Postal Zip Code Entity Address, Postal Zip Code Position [Domain] Position [Domain] Unamortized debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Taxes other than on income Taxes, Miscellaneous Shares cancelled for taxes and other Temporary Equity, Decrease From Shares Cancelled For Taxes And Other Temporary Equity, Decrease From Shares Cancelled For Taxes And Other Net (loss) income Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Assets held for sale Disposal Group, Including Discontinued Operation, Assets, Current Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Distributions to noncontrolling interest holders Noncontrolling Interest, Decrease From Distributions To Redeemable Noncontrolling Interest Holders Noncontrolling Interest, Decrease From Distributions To Redeemable Noncontrolling Interest Holders Title of 12(b) Security Title of 12(b) Security Statement [Table] Statement [Table] Other current assets Other current assets Other Assets, Current Potential Dilutive Common Shares: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Hedge Production Periods [Axis] Hedge Production Periods [Axis] Information about the production period subject to hedge instruments. Debt Repurchases of debt Long-term Debt, Unclassified [Abstract] Unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Statistical Measurement [Axis] Statistical Measurement [Axis] Gross Amounts at Fair Value Derivative Liability, Fair Value, Gross Liability Distributions to noncontrolling interest holders Temporary Equity, Decrease From Distributions To Redeemable Noncontrolling Interest Holders Temporary Equity, Decrease From Distributions To Redeemable Noncontrolling Interest Holders Subsequent Event Subsequent Event [Member] Net settlement (payments) proceeds from commodity derivatives Proceeds (Payments) on Derivative Settlements to Reconcile Net Income Loss to Cash provided by Used in Operating Activities The net proceeds (payments) on derivative settlements, which increase (reduce) net income and are thus added (deducted) when calculating cash provided by or used in operating activities. Cover [Abstract] Cover [Abstract] Equity attributable to noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Other non-operating expenses, net Other Nonoperating Expense Pension Benefit Pension Plan [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Summary of Fair Value of Derivatives Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Prepaid power plant maintenance Prepaid Expense, Noncurrent Other, net Other Expenses DEBT Long-term Debt [Text Block] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]