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Derivative Activities - Schedule of Additional Information Related to Master Netting Arrangements with Derivative Counterparties (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Derivative [Line Items] |  |
Gross Amounts of Recognized Assets | $ 404,118 us-gaap_DerivativeFairValueOfDerivativeAsset | $ 33,360 us-gaap_DerivativeFairValueOfDerivativeAsset
Gross Amounts Offset in the Balance Sheet | (755)us-gaap_DerivativeAssetFairValueGrossLiability | (19,706)us-gaap_DerivativeAssetFairValueGrossLiability
Net Amounts of Assets Presented in the Balance Sheet | 403,363 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral | 13,654 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
Gross Amounts of Recognized (Liabilities) | (755)us-gaap_DerivativeFairValueOfDerivativeLiability | (45,929)us-gaap_DerivativeFairValueOfDerivativeLiability
Gross Amounts Offset in the Balance Sheet | 755 us-gaap_DerivativeLiabilityFairValueGrossAsset | 19,706 us-gaap_DerivativeLiabilityFairValueGrossAsset
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | (26,223)us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
Natural Gas | Swaps |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized Assets | 198,740 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | 4,240 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts Offset in the Balance Sheet |  | (1,218)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Net Amounts of Assets Presented in the Balance Sheet | 198,740 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | 3,022 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts of Recognized (Liabilities) |  | (4,790)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts Offset in the Balance Sheet |  | 1,218 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | (3,572)us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Natural Gas | Collars |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized Assets | 57,460 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | 16,057 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts Offset in the Balance Sheet |  | (7,671)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Net Amounts of Assets Presented in the Balance Sheet | 57,460 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | 8,386 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts of Recognized (Liabilities) |  | (13,345)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts Offset in the Balance Sheet |  | 7,671 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | (5,674)us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Natural Gas | Basis Swaps |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized Assets | 2,442 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | 7,686 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts Offset in the Balance Sheet | (755)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | (7,686)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Net Amounts of Assets Presented in the Balance Sheet | 1,687 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember |
Gross Amounts of Recognized (Liabilities) | (755)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | (3,756)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Gross Amounts Offset in the Balance Sheet | 755 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember | 7,686 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | 3,930 us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNaturalGasMember
Crude Oil | Swaps |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized Assets | 128,578 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember | 3,567 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Gross Amounts Offset in the Balance Sheet |  | (1,321)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Net Amounts of Assets Presented in the Balance Sheet | 128,578 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember | 2,246 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Gross Amounts of Recognized (Liabilities) |  | (4,711)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Gross Amounts Offset in the Balance Sheet |  | 1,321 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | (3,390)us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Crude Oil | Collars |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized (Liabilities) |  | (398)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | (398)us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractCrudeOilMember
Commodity Contract NGLs (C3 - Propane) | Swaps |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized Assets | 14,727 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCThreePropaneMember | 826 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCThreePropaneMember
Gross Amounts Offset in the Balance Sheet |  | (826)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCThreePropaneMember
Net Amounts of Assets Presented in the Balance Sheet | 14,727 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCThreePropaneMember |
Gross Amounts of Recognized (Liabilities) |  | (18,172)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCThreePropaneMember
Gross Amounts Offset in the Balance Sheet |  | 826 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCThreePropaneMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | (17,346)us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCThreePropaneMember
Commodity Contract NGLs (C5 - Natural Gasoline) | Swaps |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized Assets | 2,171 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFiveNaturalGasolineMember | 121 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFiveNaturalGasolineMember
Gross Amounts Offset in the Balance Sheet |  | (121)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFiveNaturalGasolineMember
Net Amounts of Assets Presented in the Balance Sheet | 2,171 us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFiveNaturalGasolineMember |
Gross Amounts Offset in the Balance Sheet |  | 121 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFiveNaturalGasolineMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | 121 us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFiveNaturalGasolineMember
Commodity Contract NGLs (C4 - Natural Gasoline) | Swaps |  |
Derivative [Line Items] |  |
Gross Amounts of Recognized Assets |  | 863 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFourNaturalGasolineMember
Gross Amounts Offset in the Balance Sheet |  | (863)us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFourNaturalGasolineMember
Gross Amounts of Recognized (Liabilities) |  | (757)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFourNaturalGasolineMember
Gross Amounts Offset in the Balance Sheet |  | 863 us-gaap_DerivativeLiabilityFairValueGrossAsset / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFourNaturalGasolineMember
Net Amounts of (Liabilities) Presented in the Balance Sheet |  | $ 106 us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = rrc_CommodityContractNglsCFourNaturalGasolineMember

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