XML 146 R120.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Supplemental Gas Data (unaudited) - Narrative (Details) $ in Thousands, Mcf in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) well Mcf | Dec. 31, 2020 USD ($) well | Dec. 31, 2019 USD ($) well | Dec. 31, 2018 USD ($)
Extractive Industries [Abstract] |  |  |  |
Net development wells drilled | 33.0 | 29.0 | 75.7 |
Net dry development wells drilled | 0 | 0 | 1.0 |
Net exploratory wells drilled | 0 | 2.0 | 5.0 |
Number of net dry exploratory wells | 0 | 0 | 0 |
Net development wells drilled but uncompleted | 13.0 |  |  |
Net exploratory wells completed, awaiting tie-in to production | 0 |  |  |
Gas delivery commitment, remaining contractual volume | Mcf | 394.6 |  |  |
Period from reserves booking for proved undeveloped locations to be fully developed | 5 years |  |  |
Number of wells pending determination of proved reserves | 1 |  |  |
Oil and Gas, Development Well Drilled [Line Items] |  |  |  |
Capitalized exploratory well costs | $ | $ 0 | $ 9,062 | $ 8,984 | $ 8,178

X
- Definition Development Wells Drilled, Net Nonproductive1 + References No definition available. + Details
Name: | cnx_DevelopmentWellsDrilledNetNonproductive1
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Development Wells Drilled, Net Productive1 + References No definition available. + Details
Name: | cnx_DevelopmentWellsDrilledNetProductive1
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exploratory Wells Drilled, Net Productive1 + References No definition available. + Details
Name: | cnx_ExploratoryWellsDrilledNetProductive1
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net Development Wells, Drilled But Uncompleted + References No definition available. + Details
Name: | cnx_NetDevelopmentWellsDrilledButUncompleted
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Net Exploratory Wells, Completed, Awaiting Tie-In To Production + References No definition available. + Details
Name: | cnx_NetExploratoryWellsCompletedAwaitingTieInToProduction
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Wells Pending Determination Of Proved Reserves + References No definition available. + Details
Name: | cnx_NumberOfWellsPendingDeterminationOfProvedReserves
Namespace Prefix: | cnx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Proved Undeveloped Reserves, Period To Be Fully Developed + References No definition available. + Details
Name: | cnx_ProvedUndevelopedReservesPeriodToBeFullyDeveloped
Namespace Prefix: | cnx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | srt_DevelopmentWellsDrilledLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of exploratory oil and gas wells incapable of producing either oil or gas in sufficient quantity to justify completion as oil or gas well. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1205 -Paragraph (a) -Subparagraph (1) + Details
Name: | srt_ExploratoryWellsDrilledNetNonproductive
Namespace Prefix: | srt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_ExtractiveIndustriesAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Quantity of oil and gas subject to delivery commitment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1207 -Paragraph (a) -Subparagraph (2) + Details
Name: | srt_OilAndGasDeliveryCommitmentsAndContractsRemainingContractualVolume
Namespace Prefix: | srt_
Data Type: | dtr-types:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123377692&loc=SL6806780-109447 + Details
Name: | us-gaap_CapitalizedExploratoryWellCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant