Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Short-term Debt, Other Disclosures [Abstract]
Short-Term Debt, Other Disclosure [Abstract]
Trading Arrangement:
Trading Arrangement [Axis]
Maximum
Maximum [Member]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Cash & Cash Equivalents
Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block]
Unrealized Gain (Loss) on Commodity Derivative Instruments:
Unrealized Gain (Loss) on Derivatives and Commodity Contracts
Title of 12(b) Security
Title of 12(b) Security
Carrying Amount
Reported Value Measurement [Member]
Diluted Earnings Available to Shareholders
Net Income (Loss) Available to Common Stockholders, Diluted
Document Fiscal Year Focus
Document Fiscal Year Focus
Remaining performance obligations, expected timing of satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Weighted average interest rate
Debt, Weighted Average Interest Rate
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Gross Amortizable Asset - Customer Relationships
Finite-Lived Customer Relationships, Gross
Customer [Axis]
Customer [Axis]
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Schedule of Fair Value, Assets Measured on Recurring Basis
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
Common Stock, $.01 Par Value; 500,000,000 Shares Authorized, 143,874,348 Issued and Outstanding at September 30, 2026; 142,590,509 Issued and Outstanding at December 31, 2025
Common Stock, Value, Issued
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
Shares Withheld for Taxes
Payment, Tax Withholding, Share-Based Payment Arrangement
Schedule of Long-Term Debt
Schedule of Long-Term Debt Instruments [Table Text Block]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Other
Other Assets, Miscellaneous, Noncurrent
Total Commitments
Guarantor Obligations, Maximum Exposure, Undiscounted
Interest coverage ratio
Debt Instrument, Interest Coverage Ratio
Debt Instrument, Interest Coverage Ratio
Line of Credit
Line of Credit [Member]
Restatement Determination Date
Restatement Determination Date
Short-Term Incentive Compensation
Employee-related Liabilities
Contract asset
Contract with Customer, Asset, after Allowance for Credit Loss
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Liability Component:
Debt Instrument Liability Component [Abstract]
Debt Instrument Liability Component
Allowance for credit losses, beginning of year
Allowance for credit losses, end of year
Accounts Receivable, Allowance for Credit Loss
Other
Other Commitments [Member]
Other Commitments
Conversion price (in usd per share)
Debt Instrument, Convertible, Conversion Price
Proceeds from Asset Sales
Net cash proceeds
Proceeds from Sale of Productive Assets
CNX Senior Notes
CNX Senior Notes [Member]
CNX Senior Notes
Amendment Flag
Amendment Flag
Current Liabilities:
Liabilities, Current [Abstract]
Shares repurchased, average price (in usd per share)
Shares Acquired, Average Cost Per Share
Provision and Recovery for Expected Credit Losses
Accounts Receivable, Credit Loss Expense (Reversal)
Schedule of Notional Amounts of Derivative Instruments
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
Entity Common Stock, Shares Outstanding (in shares)
Entity Common Stock, Shares Outstanding
3-5 Years
More Than Three And Within Five Years From Balance Sheet Date [Member]
More than Three and within Five Years from Balance Sheet Date
Letters of Credit
Standby Letters of Credit [Member]
3 - 5 years
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five
Gain on Asset Sales and Abandonments, net
Gain (Loss) on Disposition of Other Assets
Loss Contingencies [Table]
Loss Contingencies [Table]
Enviromental Attributes
Enviromental Attributes [Member]
Enviromental Attributes
Other Comprehensive Income:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Property, Plant and Equipment:
Property, Plant, and Equipment [Abstract]
Entity Address, State or Province
Entity Address, State or Province
PEO Total Compensation Amount
PEO Total Compensation Amount
Common stock, par value (in usd per share)
Common Stock, Par or Stated Value Per Share
Proved Gas Properties
Oil and Gas, Successful Efforts Method, Property and Equipment, Proved Property, before Accumulated Depreciation, Depletion, Amortization, and Impairment
Capital Expenditures
Segment Reporting, Long-Lived Asset, Expenditure for Addition
Other Intangible Assets, net
Intangible Asset, Excluding Goodwill, after Accumulated Amortization
Schedule of Costs Related to Purchase Obligations [Table]
Schedule of Costs Related to Purchase Obligations [Table]
Schedule of Costs Related to Purchase Obligations [Table]
Weighted-Average Shares of Common Stock Outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Accumulated impairment losses on goodwill
Goodwill, Impaired, Accumulated Impairment Loss
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Number of reportable segments
Number of Reportable Segments
Total Current Liabilities
Liabilities, Current
Derivative Instruments
Total Current Liabilities
Derivative Liability, Current
Schedule of Derivative Assets at Fair Value
Schedule of Derivative Assets at Fair Value [Table Text Block]
Entity Address, City or Town
Entity Address, City or Town
Schedule of Cash Flow, Supplemental Disclosures
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Class of Stock [Axis]
Class of Stock [Axis]
Total Other Intangible Assets, net
Intangible Asset, Finite-Lived, after Accumulated Amortization
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Basic Earnings Available to Shareholders
Net Income (Loss) Available to Common Stockholders, Basic
Accounts and Notes Receivable:
Accounts and Financing Receivable, after Allowance for Credit Loss, Current [Abstract]
Level 2
Fair Value, Inputs, Level 2 [Member]
Senior Notes due January 2029
Senior Notes due January 2029 [Member]
Senior Notes due January 2029
Less: Accumulated Amortization - Customer Relationships
Intangible Asset, Finite-Lived, Accumulated Amortization
Receivable [Domain]
Receivable [Domain]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Letters of credit aggregate sub-limit
Line of Credit Facility, Maximum Borrowing Capacity
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Current Portion of Long-Term Debt
Less: Current Portion
Long-Term Debt, Current Maturities
Apex Energy II LLC
Apex Energy II LLC [Member]
Apex Energy II LLC
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Capital expenditures incurred, not yet paid
Capital Expenditures Incurred but Not yet Paid
Litigation Case [Axis]
Litigation Case [Axis]
Schedule of Segment Reporting Information, by Segment
Segment Reporting [Table Text Block]
Current Portion of Long-Term Liabilities:
Liabilities, Other than Long-Term Debt, Noncurrent [Abstract]
Amortization of Issuance Costs
Amortization of Debt Issuance Costs
Other Comprehensive Income
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Schedule of Other Accrued Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Net Payments on Revolving Credit Facility
Repayments of Lines of Credit
DTE Energy Trading, Inc.
DTE Energy Trading, Inc. [Member]
DTE Energy Trading, Inc.
Net Carrying Amount
Long-term debt, gross
Long-Term Debt (Excluding Debt Issuance Costs)
Long-Term Debt
PROPERTY, PLANT AND EQUIPMENT
Property, Plant, and Equipment [Text Block]
Document Period End Date
Document Period End Date
Net Cash Used in Investing Activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
Total amount of uncertain tax positions
Unrecognized Tax Benefits
Other Significant Noncash Transactions [Line Items]
Other Significant Noncash Transactions [Line Items]
Preferred stock, outstanding (in shares)
Preferred Stock, Shares Outstanding
Principal
Debt Instrument, Face Amount
Earnings per Share
Earnings Per Share, Basic and Diluted EPS [Abstract]
Earnings Per Share, Basic and Diluted EPS
Costs and Expenses:
Costs and Expenses [Abstract]
Security Exchange Name
Security Exchange Name
Schedule of Reconciliation of Revenue from Segments to Consolidated
Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block]
NRG Business Marketing LLC
NRG Business Marketing LLC [Member]
Direct Energy Business Marketing LLC
Schedule of Long-term Purchase Commitment
Long-Term Purchase Commitment [Table Text Block]
SUPPLEMENTAL CASH FLOW INFORMATION
Cash Flow, Supplemental Disclosures [Text Block]
Natural Gas Basis Swaps (Bcf)
Natural Gas Basis Swaps
Basis Swap [Member]
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Entity Shell Company
Entity Shell Company
Consolidation Items [Domain]
Consolidation Items [Domain]
Current Portion of Operating Lease Obligations
Operating Lease, Liability, Current
Accrued Interest
Interest Payable, Current
Schedule of Allowance for Credit Loss
Accounts Receivable, Allowance for Credit Loss [Table Text Block]
Schedule of Property, Plant and Equipment
Property, Plant, and Equipment [Table Text Block]
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
EARNINGS PER SHARE
Earnings Per Share [Text Block]
Name
Outstanding Recovery, Individual Name
Earnings per Share
Earnings Per Share [Abstract]
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
Document Fiscal Period Focus
Document Fiscal Period Focus
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Restricted stock units and performance share units (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised
Accounts and Notes Receivable
Increase (Decrease) in Accounts and Notes Receivable
Financial Guarantees
Financial Guarantee [Member]
TOTAL LIABILITIES
Liabilities
Other comprehensive income, tax expense
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent
Trading Symbol
Trading Symbol
Capital Expenditures
Payments for capital expenditures
Payments to Acquire Property, Plant, and Equipment
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Company Selected Measure Name
Company Selected Measure Name
Sale of Stock [Domain]
Sale of Stock [Domain]
Citadel Energy Marketing, LLC
Citadel Energy Marketing, LLC [Member]
Citadel Energy Marketing, LLC
Salary Retirement
Liability, Defined Benefit Pension Plan, Current
Purchase Commitment, Excluding Long-term Commitment [Axis]
Purchase Commitment, Excluding Long-Term Commitment [Axis]
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
1 - 3 years
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three
Commodity Derivatives
Energy Related Derivative [Member]
Payable period
Loss Contingency, Period Payable
Loss Contingency, Period Payable
Elected commitments
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases
Changes in Other Liabilities
Increase (Decrease) in Other Accrued Liabilities
Credit Facility [Domain]
Credit Facility [Domain]
Cash Flows from Operating Activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Other Receivables, net
Other receivables
Other Receivables, Net, Current
Compensation Amount
Outstanding Recovery Compensation Amount
Individual:
Individual [Axis]
Weighted-Average Diluted Shares of Common Stock Outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Dividends Declared (in usd per share)
Common Stock, Dividends, Per Share, Cash Paid
Entity Emerging Growth Company
Entity Emerging Growth Company
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Natural Gas, NGLs and Oil Revenue
Oil and Gas [Member]
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Notional amount
Derivative, Nonmonetary Notional Amount, Volume
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Net Proceeds from Revolving Credit Facility
Proceeds from Lines of Credit
DERIVATIVE INSTRUMENTS
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Entities [Table]
Entities [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Revolving credit available for borrowing
Line of Credit Facility, Current Borrowing Capacity
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Abstract]
Restricted Cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
CNX Revolving Credit Facility
CNX Revolving Credit Facility [Member]
CNX Revolving Credit Facility [Member]
Award Timing Predetermined
Award Timing Predetermined [Flag]
CNX Midstream Partners LP Revolving Credit Facility
CNX Midstream Partners LP Revolving Credit Facility [Member]
CNX Midstream Partners LP Revolving Credit Facility [Member]
Net Cash Paid in Settlement of Commodity Derivative Instruments
Increase (Decrease) Cash Collateral from Counterparties
Intangible Asset, Goodwill and Other [Abstract]
Intangible Asset, Goodwill and Other [Abstract]
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Level 1
Fair Value, Inputs, Level 1 [Member]
Other Expense
Other Nonoperating Expense
Derivative Instruments
Total Other Non-Current Assets
Derivative Asset, Noncurrent
Effective tax rate, percentage
Effective Income Tax Rate Reconciliation, Percent
Senior Notes due April 2030
Senior Notes Due April 2030 [Member]
Senior Notes Due April 2030
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Shale
Shale [Member]
Shale
Effect of Diluted Shares (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Amortization of Stock-Based Compensation Awards
Shares Granted, Value, Share-Based Payment Arrangement, after Forfeiture
Convertible 2.25% Senior Notes Due 2026, Additional Option To Initial Purchasers
Convertible 2.25% Senior Notes Due 2026, Additional Option To Initial Purchasers [Member]
Convertible 2.25% Senior Notes Due 2026, Additional Option To Initial Purchasers
All Executive Categories
All Executive Categories [Member]
Purchase and Retirement of Common Stock
Total value of shares repurchased
Stock Repurchased and Retired During Period, Value
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Fair Value
Long-Term Debt, Fair Value
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Operating Lease Right-of-Use Assets
Operating Lease, Right-of-Use Asset
Firm Transportation
Firm Transportation [Member]
Firm Transportation [Member]
Accrued amount
Loss Contingency, Accrual, Noncurrent
Accounting Changes and Error Corrections [Abstract]
Accounting Changes and Error Corrections [Abstract]
Schedule of Earnings (Loss) Per Share, Basic and Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Marcellus Shale Rights [Member]
Marcellus Shale Rights [Member]
Marcellus Shale Rights
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Debt instrument, price, percentage of par
Debt Instrument, Price, Percentage Of Par
Debt Instrument, Price, Percentage Of Par
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
SEGMENT INFORMATION
Segment Reporting [Text Block]
Borrowings outstanding
Long-Term Line of Credit
Minimum
Minimum [Member]
Payments on Other Debt
Repayments of Other Debt
Expiration Date
Trading Arrangement Expiration Date
Schedule of Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]
Business Combination [Line Items]
Business Combination [Line Items]
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Derivative [Table]
Derivative [Table]
Proceeds from Issuance of Common Stock
Proceeds from Issuance of Common Stock
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Useful life, customer relationship intangible assets
Intangible Asset, Finite-Lived, Useful Life
Income tax credits adjustments
Income Tax Credits and Adjustments
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Security, Excluded EPS Calculation [Table]
Exercise Price
Award Exercise Price
Cash Flows from Investing Activities:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
One-Month SOFR
One-Month SOFR [Member]
One-Month SOFR
Share repurchase program, authorized amount
Share Repurchase Program, Authorized, Amount
Segment Reporting [Line Items]
Segment Reporting [Line Items]
NGL Commodity Swaps (Mbbls)
Natural Gas Liquids (NGL) [Member]
Document Quarterly Report
Document Quarterly Report
Option Indexed to Issuer's Equity, Type [Axis]
Option Indexed to Issuer's Equity, Type [Axis]
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]
Segments [Domain]
Segments [Domain]
Purchase and retirement of long term debt
Repayments of Long-Term Debt
Loss Contingencies by Secondary Nature of Contingency
Loss Contingencies by Secondary Nature of Contingency [Member]
Loss Contingencies by Secondary Nature of Contingency [Member]
Underwriter discount and issuance costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Investments in unconsolidated equity affiliates
Equity Method Investments
Business Combination [Table]
Business Combination [Table]
ACQUISITIONS AND DISPOSITIONS
Mergers, Acquisitions and Dispositions Disclosures [Text Block]
Equity Component [Domain]
Equity Component [Domain]
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Indefinite
Indefinite From Balance Sheet Date [Member]
Indefinite From Balance Sheet Date
Total Costs and Expenses
Costs and Expenses
Adoption Date
Trading Arrangement Adoption Date
Stated rate, debt instrument
Debt Instrument, Interest Rate, Stated Percentage
TOTAL STOCKHOLDERS' EQUITY
Beginning balance
Ending balance
Equity, Attributable to Parent
Total Other Expense (Income)
Nonoperating Income (Expense)
Production, Ad Valorem and Other Fees
Production Tax Expense
ASSETS
Assets [Abstract]
Other Significant Noncash Transactions [Table]
Other Significant Noncash Transactions [Table]
Title
Trading Arrangement, Individual Title
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Number of retirees
Number Of Retired Employees
Number Of Retired Employees
Insider Trading Policies and Procedures [Line Items]
STOCK REPURCHASE
Treasury Stock [Text Block]
OTHER ACCRUED LIABILITIES
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Income Taxes
Proceeds from Income Tax Refunds
Deferred Income Taxes
Deferred Income Tax Expense (Benefit)
Convertible 7.25% Senior Notes Due 2032
Convertible 7.25% Senior Notes Due 2032 [Member]
Convertible 7.25% Senior Notes Due 2032
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Table]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Table]
Business Combination [Domain]
Business Combination [Domain]
Net leverage ratio
Debt Instrument, Net Leverage Ratio
Debt Instrument, Net Leverage Ratio
COMMITMENTS AND CONTINGENT LIABILITIES
Commitments and Contingencies Disclosure [Text Block]
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Antidilutive securities excluded from the computation of diluted earnings per share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Anti-Dilutive Restricted Stock Units
Restricted Stock Units
Restricted Stock Units (RSUs) [Member]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Entity Central Index Key
Entity Central Index Key
Less—Accumulated Depreciation, Depletion and Amortization
Less: Accumulated Depreciation, Depletion and Amortization
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Other
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Business Combination [Axis]
Business Combination [Axis]
Equity [Abstract]
Equity [Abstract]
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]
Net Cash Provided by Operating Activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Purchased Gas Costs
Production Royalty Interests and Purchased Gas Costs
Production Royalty Interests and Purchased Gas Costs
Income Statement [Abstract]
Income Statement [Abstract]
Document Transition Report
Document Transition Report
Payments to acquire royalty interests in mining properties
Payments to Acquire Royalty Interests in Mining Properties
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Operating Expense
Operating Expenses [Abstract]
Finance Lease Obligations
Finance Lease, Liability, Noncurrent
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
Murray Energy Corporation
Murray Energy Corporation [Member]
Murray Energy Corporation
Derivatives settled not paid
Derivatives Settled Not Paid
Derivatives Settled Not Paid
Schedule of Finite-Lived Intangible Assets
Intangible Asset, Finite-Lived [Table Text Block]
Basis spread on variable rate
Debt Instrument, Basis Spread on Variable Rate
Other Commitments [Domain]
Other Commitments [Domain]
City Area Code
City Area Code
Variable Rate [Domain]
Variable Rate [Domain]
Surface Land and Other Equipment
Surface Land And Other Equipment
Surface Land And Other Equipment
Restricted Stock Units
Restricted Stock [Member]
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent [Member]
All Individuals
All Individuals [Member]
Name
Forgone Recovery, Individual Name
Debt instrument, unamortized discount
Debt Instrument, Unamortized Discount, Current
Area of land sold (in acres)
Disposition Of Area Of Land
Disposition Of Area Of Land
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Statement [Line Items]
Statement [Line Items]
TOTAL ASSETS
Segment Assets
Assets
Entity [Domain]
Entity [Domain]
Payments on Long-Term Notes
Payments On Long Term Notes Including Redemption Premium
Payments On Long Term Notes Including Redemption Premium
Call Option
Call Option [Member]
Trade Accounts Receivable and Allowance for Credit Losses
Accounts Receivable [Policy Text Block]
Preferred stock, issued (in shares)
Preferred Stock, Shares Issued
Convertible Notes
Convertible Debt [Member]
Operating Segments
Operating Segments [Member]
Actuarially Determined Long-Term Liability Adjustments (Net of tax: $(26), $(26), $(80), $(78))
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent
Interest Expense
Interest Expense, Nonoperating
Gain on Commodity Derivative Instruments
Gain on Commodity Derivative Instruments
Gain (Loss) on Commodity Derivative Instruments:
(Loss) Gain on Commodity Derivative Instruments
Gain on Commodity Derivative Instruments
Gain (Loss) on Hedging Activity
Long-term Debt, Other Disclosures [Abstract]
Long-Term Debt, Other Disclosure [Abstract]
Energy [Domain]
Energy [Domain]
Proceeds from issuance of convertible senior notes
Proceeds from Convertible Debt
Changes in Other Assets
Increase (Decrease) in Other Operating Assets
PEO
PEO [Member]
Accrued Other Taxes
Accrual for Taxes Other than Income Taxes, Current
Prepaid Expenses
Increase (Decrease) in Prepaid Expense
Measurement Basis [Axis]
Measurement Basis [Axis]
Shares retired (in shares)
Stock Repurchased and Retired During Period, Shares
Midstream
CNXM [Member]
CNXM [Member]
Other
Other Liabilities, Noncurrent
Goodwill
Goodwill
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Other Significant Noncash Transactions by Unique Description [Axis]
Other Significant Noncash Transaction [Axis]
Initial borrowing base
Debt Instrument, Borrowing Base
Debt Instrument, Borrowing Base
Options (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Payables and Accruals [Abstract]
Payables and Accruals [Abstract]
Retained Earnings
Retained Earnings [Member]
Operating Lease Obligations
Operating Lease, Liability, Noncurrent
Total Operating Expense
Operating Expenses
Revolving Credit Facility
Revolving Credit Facility [Member]
Letters of credit outstanding
Letters Of Credit Amount Outstanding
Letters Of Credit, Amount Outstanding
Gas Wells and Related Equipment
Oil and Gas, Capitalized Cost, before Accumulated Depreciation, Depletion, Amortization, and Valuation Allowance, Well and Related Equipment and Facility
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, outstanding (in shares)
Common Stock, Shares, Outstanding
Award Timing Disclosures [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Nonrecurring Basis
Fair Value, by Balance Sheet Grouping [Table Text Block]
Oil/Condensate Revenue
Oil and Condensate [Member]
Diluted (in usd per share)
Earnings Per Share, Diluted
Entity Current Reporting Status
Entity Current Reporting Status
Net Cash Used in Financing Activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Total Shareholder Return Amount
Total Shareholder Return Amount
Federal Funds Open Rate
Federal Funds Open Rate [Member]
Federal Funds Open Rate [Member]
Shares Withheld for Taxes
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Other Non-Current Assets:
Other Assets, Noncurrent [Abstract]
Litigation Case [Domain]
Litigation Case [Domain]
Amortization expense
Intangible Asset, Finite-Lived, Amortization Expense
Add Back Interest on Convertible Notes (Net of Tax)
Interest on Convertible Debt, Net of Tax
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Natural Gas Revenue
Natural Gas Commodity Swaps (Bcf)
Natural Gas [Member]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Cash Flows from Financing Activities:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Total Property, Plant and Equipment—Net
Total Property, Plant and Equipment—Net
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization
Revenues
Revenue from Contracts with Customers:
Total Segment Revenue from Contracts with External Customers
Revenue from Contract with Customer, Excluding Assessed Tax
Borrowings and issuance of letters of credit remaining capacity
Line of Credit Facility, Remaining Borrowing Capacity
Beyond 5 Years
Beyond Five Years of Balance Sheet Date [Member]
Beyond Five Years of Balance Sheet Date [Member]
Surety Bond
Surety Bond [Member]
Schedule of Derivative Liabilities at Fair Value
Schedule of Derivative Liabilities at Fair Value [Table Text Block]
Total Non-Current Liabilities
Deferred Credits and Other Liabilities
Other Operating Income
Other Income
Derivative asset
Derivative Asset
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
GOODWILL AND OTHER INTANGIBLE ASSETS
Intangible Asset and Goodwill [Text Block]
Underlying Securities
Award Underlying Securities Amount
Fair Value
Estimate of Fair Value Measurement [Member]
REVENUE FROM CONTRACTS WITH CUSTOMERS
Revenue from Contract with Customer [Text Block]
Issuance of Common Stock
Stock Issued During Period, Value, New Issues
Accrued Interest
Increase (Decrease) in Interest Payable, Net
Prepaid Expenses
Prepaid Expense, Current
Transportation, Gathering and Compression
Natural Gas, Gathering, Transportation, Marketing and Processing [Member]
Unproved Gas Properties
Oil and Gas, Successful Efforts Method, Property and Equipment, Unproved Property, before Accumulated Depreciation, Depletion, Amortization, and Impairment
Coalbed Methane
Coalbed Methane [Member]
Coalbed Methane
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Supplies Inventories
Increase (Decrease) in Inventories
1-3 Years
More Than One And Within Three Years From Balance Sheet Date [Member]
More than One and within Three Years from Balance Sheet Date
Total Other Accrued Liabilities
Other Accrued Liabilities
Segment Reporting [Table]
Segment Reporting [Table]
NGL Revenue
NGLs [Member]
NGLs [Member]
Sale of Stock [Axis]
Sale of Stock [Axis]
Exploration and Production Related Other Costs
Oil and Gas, Exploration and Production [Member]
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Other Expense (Income)
Other Nonoperating Income (Expense) [Abstract]
All Trading Arrangements
All Trading Arrangements [Member]
Other Performance Measure, Amount
Other Performance Measure, Amount
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Remaining performance obligations
Revenue, Remaining Performance Obligation, Amount
Current Fiscal Year End
Current Fiscal Year End Date
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Derivative [Line Items]
Derivative [Line Items]
Unrecorded Unconditional Purchase Obligation [Table]
Unrecorded Unconditional Purchase Obligation [Table]
Shares repurchased during period (in shares)
Stock Repurchased During Period, Shares
Total Purchase Obligations
Unrecorded Unconditional Purchase Obligation
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table]
Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table]
Entity File Number
Entity File Number
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Other Guarantees
Guarantee Obligations [Member]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock, issued (in shares)
Common Stock, Shares, Issued
Measure:
Measure [Axis]
Entity Information [Line Items]
Entity Information [Line Items]
Realized Gain (Loss) on Commodity Derivative Instruments:
Gain (Loss) on Sale of Commodity Contracts
Asset Retirement Obligations
Asset Retirement Obligations, Noncurrent
Equity Components [Axis]
Equity Components [Axis]
Selling, General, and Administrative Costs
Oil and Gas, Result of Operation, General and Administrative Expense
Product and Service [Domain]
Product and Service [Domain]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Entity Interactive Data Current
Entity Interactive Data Current
Variable Rate [Axis]
Variable Rate [Axis]
Current Portion of Finance Lease Obligations
Finance Lease, Liability, Current
Deferred Income Taxes
Deferred Income Tax Liabilities, Net
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Maximum net leverage ratio
Interest Ratio per Credit Facility Covenant
Interest Ratio per Credit Facility Covenant
Entity Small Business
Entity Small Business
Comprehensive Income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Secured leverage ratio
Credit Facility, Debt Covenant, Secured Leverage Ratio
Credit Facility, Debt Covenant, Secured Leverage Ratio
Termination Date
Trading Arrangement Termination Date
Other Commitments [Axis]
Other Commitments [Axis]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Initial Notes - Convertible 7.25% Senior Notes Due 2032
Initial Notes - Convertible 7.25% Senior Notes Due 2032 [Member]
Initial Notes - Convertible 7.25% Senior Notes Due 2032
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Total Other Non-Current Assets
Other Assets, Noncurrent
Document Type
Document Type
Other Significant Noncash Transaction, Name [Domain]
Other Significant Noncash Transaction, Name [Domain]
Accrued interest liability
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Apex Acquisition (Net of Cash Acquired)
Consideration
Payments to Acquire Businesses, Net of Cash Acquired
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments
Total Current Assets
Derivative Asset, Current
Loss on Debt Extinguishment
Loss on Debt Extinguishment
Loss on debt extinguishment
Gain (Loss) on Extinguishment of Debt
Purchase Commitment, Excluding Long-term Commitment [Domain]
Purchase Commitment, Excluding Long-Term Commitment [Domain]
Fair Value as of Grant Date
Award Grant Date Fair Value
Gain on Asset Sales and Abandonments, net
Gain on transaction
Gain (Loss) on Disposition of Assets
Strike price (in usd per share)
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Amount available under the current stock repurchase program
Share Repurchase Program, Remaining Authorized, Amount
Investment in Equity Affiliates
Payments For (Proceeds From) Investment In Equity Affiliates
Payments For (Proceeds From) Investment In Equity Affiliates
Arrangement Duration
Trading Arrangement Duration
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Local Phone Number
Local Phone Number
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation [Line Items]
Other Revenue and Operating Income
Other Revenue And Operating Income
Other Revenue And Operating Income
Consolidation Items [Axis]
Consolidation Items [Axis]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Entity Registration Name
Entity Registrant Name
Amortization of Deferred Financing Costs
Amortization of Other Deferred Charges
Royalties
Accrued Royalties
Changes in Operating Assets:
Increase (Decrease) in Operating Assets [Abstract]
Increase resulting in additional tax credits claimed
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Performance Share Units
Performance Share Units [Member]
Performance Share Units
Option Indexed to Issuer's Equity, Type [Domain]
Option Indexed to Issuer's Equity, Type [Domain]
Total Revenue and Other Operating Income
Total Revenue and Other Operating Income
Total Consolidated Revenue and Other Operating Income
Revenues
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Property, Plant and Equipment
Total Property, Plant and Equipment
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Equity in earnings (loss) of unconsolidated affiliates
Income (Loss) from Equity Method Investments
Estimated annual amortization expense, year 4
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Executive Category:
Executive Category [Axis]
Receivable Type [Axis]
Receivable Type [Axis]
Changes in Operating Liabilities:
Increase (Decrease) in Operating Liabilities [Abstract]
LIABILITIES AND EQUITY
Liabilities and Equity [Abstract]
Supplies Inventories
Inventory, Net
Award Type [Domain]
Award Type [Domain]
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
FAIR VALUE OF FINANCIAL INSTRUMENTS
Fair Value Disclosures [Text Block]
Level 3
Fair Value, Inputs, Level 3 [Member]
Supplemental Cash Flow Information [Abstract]
Estimated annual amortization expense, year 1
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One
PEO Name
PEO Name
Other
Accrued Liabilities and Other Liabilities
Schedule of Short-term Debt [Table]
Short-Term Debt [Table]
Other Segment Items
Segment Reporting, Other Segment Item, Amount
Capped Call Transaction
Capped Call Transaction [Member]
Capped Call Transaction
Net of cash received
Cash Acquired from Acquisition
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Entity Tax Identification Number
Entity Tax Identification Number
Legal Entity [Axis]
Legal Entity [Axis]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Total Interest Expense
Interest Expense, Debt
Cash, Cash Equivalents and Restricted Cash at Beginning of Period
Cash, Cash Equivalents and Restricted Cash at End of Period
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Accounts Payable
Increase (Decrease) in Accounts Payable
Other Accrued Liabilities
Other Accrued Liabilities, Current
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Non-NEOs
Non-NEOs [Member]
Restricted Cash
Restricted cash, current
Restricted Cash and Cash Equivalent, Current
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]
BASIS OF PRESENTATION
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Debt Instrument [Axis]
Debt Instrument [Axis]
Stock-Based Compensation
Share-Based Payment Arrangement, Noncash Expense
Estimated annual amortization expense, year 2
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Issuance related to convertible debt (in shares)
Stock Issued During Period, Shares, Conversion of Convertible Securities
Customer [Domain]
Customer [Domain]
Long-term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Basic (in usd per share)
Earnings Per Share, Basic
Deferred Revenue
Contract with Customer, Liability, Current
Purchases of Common Stock
Payments for Repurchase of Common Stock
Minimum current ratio
Minimum Current Ratio Per Credit Facility
Minimum Current Ratio Per Credit Facility
Total Current Assets
Assets, Current
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Insider Trading Arrangements [Line Items]
Payment terms for contract with customers
Contracts With Customers, Payment Terms
Contracts With Customers, Payment Terms
Purchased Gas Revenue
Oil and Gas, Purchased [Member]
Long-Term Debt
Long-Term Debt, Excluding Current Maturities
Award Type [Axis]
Award Type [Axis]
Debt Issuance and Financing Fees
Payments of Financing Costs
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Trade, net
Receivables related to contracts with customers
Accounts Receivable, after Allowance for Credit Loss, Current
Retained Earnings
Retained Earnings (Accumulated Deficit)
Natural Gas Commodity Swaps
Commodity Derivatives
Commodity Contract [Member]
Product and Service [Axis]
Product and Service [Axis]
Purchased Gas Payable
Gas Purchase Payable, Current
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member]
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Short-term Debt [Line Items]
Short-Term Debt [Line Items]
Common Stock ($.01 par value)
Common Stock
Common Stock [Member]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Cover page.
Cover [Abstract]
Reclassification
Reclassification, Comparability Adjustment [Policy Text Block]
Contractual Interest Expense
Interest Expense, Debt, Excluding Amortization
Derivative Contract [Domain]
Derivative Contract [Domain]
Less than 1 year
Unrecorded Unconditional Purchase Obligation, to be Paid, Year One
Preferred Share Purchase Rights
Preferred Share Purchase Rights [Member]
Preferred Share Purchase Rights [Member]
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Schedule of Unrecorded Unconditional Purchase Obligations Disclosure
Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block]
Schedule of Convertible Debt
Convertible Debt [Table Text Block]
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities and Equity
Derivative Instruments
Total Non-Current Liabilities
Derivative Liability, Noncurrent
More than 5 years
Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Options
Options
Employee Stock Option
Share-Based Payment Arrangement, Option [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset Retirement Obligations
Asset Retirement Obligation, Current
Segments [Axis]
Segments [Axis]
Other Operating Liabilities
Increase (Decrease) in Other Operating Liabilities
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Proceeds from Issuance of CNX Senior Notes
Proceeds from Issuance of Senior Long-Term Debt
No Trading Symbol
No Trading Symbol Flag
Tabular List, Table
Tabular List [Table Text Block]
Intangible Drilling Cost
Drilling Cost
Drilling Cost
Capital in Excess of Par Value
Additional Paid in Capital
LONG-TERM DEBT
Long-Term Debt [Text Block]
Estimated annual amortization expense, year 5
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five
Estimated annual amortization expense, year 3
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three
Other Operating Expense
Other Operating Income (Expense), Net
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Stockholders’ Equity:
Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Convertible Senior Notes due 2026
Convertible Senior Notes due May 2026
Convertible 2.25% Senior Notes Due 2026 [Member]
Convertible 2.25% Senior Notes Due 2026
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]
Settlement of Capped Call
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt
Convertible Debt Exchange for Shares
Stock Issued During Period, Value, Conversion of Convertible Securities
Preferred stock, authorized (in shares)
Preferred Stock, Shares Authorized
Senior Notes due March 2034
Senior Notes Due March 2034 [Member]
Senior Notes Due March 2034
Schedule of Costs Related to Purchase Obligations [Line Items]
Schedule of Costs Related to Purchase Obligations [Line Items]
Schedule of Costs Related to Purchase Obligations [Line Items]
Preferred Stock, 15,000,000 shares authorized, None issued and outstanding
Preferred Stock, Value, Issued
Accrued Payroll & Benefits
Accrued Bonuses, Current
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Less Than 1 Year
Balance on First Anniversary [Member]
Balance on First Anniversary [Member]
Employee-Related
Employee Related Commitments [Member]
Employee Related Commitments
Class of Stock [Domain]
Class of Stock [Domain]
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Interest
Interest Paid, Excluding Capitalized Interest, Operating Activity
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Purchase Commitment
Purchase Commitment [Member]
Trade Receivables
Trade Accounts Receivable [Member]
Environmental
Environment Related Commitments [Member]
Environment Related Commitments
Credit Facility [Axis]
Credit Facility [Axis]
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Settlement Agreement Between Murray And UMWA
Settlement Agreement Between Murray And UMWA [Member]
Settlement Agreement Between Murray And UMWA
Other Receivables
Other Receivables [Member]
Other Receivables
Name
Measure Name
INCOME TAXES
Income Tax Disclosure [Text Block]
Accounts Payable
Accounts Payable, Current
Pay vs Performance Disclosure [Line Items]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Other
Other Noncash Income (Expense)
Natural Gas, NGLs and Oil Revenue
Total Natural Gas, NGLs and Oil Revenue
Oil and Gas Service [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Current Portion Settlement - See Note 11
Settlement Liabilities, Current
Capital in Excess of Par Value
Additional Paid-in Capital [Member]
Income Before Income Tax
Income (Loss) Before Income Tax
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Entity Filer Category
Entity Filer Category
Notes Received from Property Sales
Notes Received from Property Sales [Member]
Notes Received from Property Sales [Member]
Name
Trading Arrangement, Individual Name
Cash and Cash Equivalents
Cash and cash equivalents
Cash and Cash Equivalent
Energy [Axis]
Energy [Axis]
Lease Operating Expense
Operating Lease, Expense
Company Selected Measure Amount
Company Selected Measure Amount
Additional cash consideration
Debt Instrument, Convertible, Cash Consideration For Conversion
Debt Instrument, Convertible, Cash Consideration For Conversion
REVOLVING CREDIT FACILITIES
Short-Term Debt [Text Block]
Depreciation, Depletion and Amortization
Depreciation, Depletion and Amortization
Gas Gathering Equipment
Gas Gathering Systems Net
Gas Gathering Systems, Net
Secured Overnight Financing Rate (SOFR)
Secured Overnight Financing Rate (SOFR) [Member]
Entity Address, Address Line Two
Entity Address, Address Line Two
Total exercised or released (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Non-Current Liabilities:
Long-Term Debt, Excluding Current Maturities [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Accounts and Financing Receivables [Table]
Unrecognized tax benefits that would impact effective tax rate
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Current Assets:
Assets, Current [Abstract]
CNXM Revolving Credit Facility
CNXM Revolving Credit Facility [Member]
CNXM Revolving Credit Facility
Non-PEO NEO
Non-PEO NEO [Member]
Entity Address, Address Line One
Entity Address, Address Line One
Income Tax Expense
Income Tax Expense (Benefit)
Effect of Dilutive Securities
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Transportation, Gathering and Compression and Exploration and Production Related Other Costs
Transportation, Gathering and Compression
Cost of Product and Service Sold
Award Timing Method
Award Timing Method [Text Block]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Net Decrease in Cash, Cash Equivalents and Restricted Cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
RECENT ACCOUNTING PRONOUNCEMENTS
Accounting Standards Update and Change in Accounting Principle [Text Block]
Net Income
Net Income
Net Income (Loss) Attributable to Parent
Long-term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Less: Unamortized Debt Issuance Costs
Unamortized Issuance Costs
Unamortized Debt Issuance Expense
Statement [Table]
Statement [Table]
Restatement Determination Date:
Restatement Determination Date [Axis]
Senior Notes due January 2031
Senior Notes Due January 2031 [Member]
Senior Notes Due January 2031
Loss contingency payable amount
Litigation Settlement, Amount Awarded to Other Party
New Notes - Convertible 7.25% Senior Notes Due 2032
New Notes - Convertible 7.25% Senior Notes Due 2032 [Member]
New Notes - Convertible 7.25% Senior Notes Due 2032
Other
Other Gas Assets
Other Gas Assets
Revenue and Other Operating Income:
Revenues [Abstract]
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Transportation Charges
Accrued Transportation Charges
Accrued Transportation Charges
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Abstract]