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Supplemental Information on Natural Gas and Oil Exploration, Development and Production Activities (Unaudited) - Standardized Measure of Discounted Future Net Cash Flows (Parenthetical) (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) MMcfe
Extractive Industries [Abstract] |
Proved undeveloped reserves removed and deferred | MMcfe | 1,300
Undiscounted future asset retirement costs estimation | $ | $ 308.5

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- Definition Proved undeveloped reserves removed and deferred. + References No definition available. + Details
Name: | rrc_ProvedUnDevelopedReservesRemovedAndDeferred
Namespace Prefix: | rrc_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

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- Definition Undiscounted future net cash flows relating to proved oil and gas asset retirement costs estimation. + References No definition available. + Details
Name: | rrc_UndiscountedFutureNetCashFlowsRelatingToProvedOilAndGasAssetRetirementCostsEstimation
Namespace Prefix: | rrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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