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Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Commitments And Contingencies Disclosure [Line Items] |  |  |
Rent expense under operating leases | $ 13.3 us-gaap_LeaseAndRentalExpense | $ 13.1 us-gaap_LeaseAndRentalExpense | $ 13.8 us-gaap_LeaseAndRentalExpense
Minimum remaining terms of leases on undeveloped acreage, in years | 3 years |  |
Maximum remaining terms of leases on undeveloped acreage, in years | 5 years |  |
Hydraulic Fracturing |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Contractual Obligation, Due in Next Twelve Months | $ 12.0 us-gaap_ContractualObligationDueInNextTwelveMonths / us-gaap_PropertyPlantAndEquipmentByTypeAxis = rrc_HydraulicFracturingMember |  |
Minimum |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Transportation and gathering commitments contingent upon pipeline construction or modification, term of contract | 5 years |  |
Minimum | 2015 |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Delivery commitments contingent upon pipeline construction or modification in bbls per day | 10,000 rrc_DeliveryCommitmentsContingentUponPipelineConstructionOrModification / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = rrc_TwoThousandAndFifteenMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Maximum |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Transportation and gathering commitments contingent upon pipeline construction or modification, term of contract | 20 years |  |
Maximum | 2015 |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Delivery commitments contingent upon pipeline construction or modification in bbls per day | 20,000 rrc_DeliveryCommitmentsContingentUponPipelineConstructionOrModification / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = rrc_TwoThousandAndFifteenMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Maximum | 2017 |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Delivery commitments contingent upon pipeline construction or modification in bbls per day | 30,000 rrc_DeliveryCommitmentsContingentUponPipelineConstructionOrModification / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = rrc_TwoThousandAndSeventeenMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Maximum | 2018 |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Delivery commitments contingent upon pipeline construction or modification in bbls per day | 45,000 rrc_DeliveryCommitmentsContingentUponPipelineConstructionOrModification / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = rrc_TwoThousandAndEighteenMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Natural Gas | Minimum |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Transportation and gathering commitments contingent upon pipeline construction or modification | 7,000 rrc_TransportationAndGatheringCommitmentsContingentUponConstructionAndModification / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasReservesMember |  |
Natural Gas | Maximum |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Transportation and gathering commitments contingent upon pipeline construction or modification | 400,000 rrc_TransportationAndGatheringCommitmentsContingentUponConstructionAndModification / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasReservesMember |  |
Ethane |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Transportation and gathering commitments contingent upon pipeline construction or modification | 20,000 rrc_TransportationAndGatheringCommitmentsContingentUponConstructionAndModification / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = rrc_EthaneMember |  |
Propane |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |
Transportation and gathering commitments contingent upon pipeline construction or modification | 20,000 rrc_TransportationAndGatheringCommitmentsContingentUponConstructionAndModification / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = rrc_PropaneMember |  |

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- Definition Delivery commitments contingent upon pipeline construction or modification. + References No definition available. + Details
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- Definition Maximum remaining terms of leases and concessions on undeveloped acreage. + References No definition available. + Details
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- Definition Transportation and gathering commitments contingent upon construction and modification. + References No definition available. + Details
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- Definition Transportation and gathering commitments contingent upon pipeline construction or modification, term of contract. + References No definition available. + Details
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- Definition Amount of contractual obligation maturing in the next fiscal year following the latest fiscal year. + References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Period remaining on leases or concessions that will expire on undeveloped acreage, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 2 -Paragraph 5 + Details
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