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Acquisitions and Dispositions - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2014
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Significant Acquisitions And Disposals [Line Items]        
(Loss) gain on the sale of assets   (175,000)us-gaap_GainLossOnSaleOfOilAndGasProperty $ (353,000)us-gaap_GainLossOnSaleOfOilAndGasProperty  
Conger Exchange Transaction        
Significant Acquisitions And Disposals [Line Items]        
(Loss) gain on the sale of assets 282,700,000us-gaap_GainLossOnSaleOfOilAndGasProperty
/ us-gaap_BusinessAcquisitionAxis
= rrc_CongerExchangeTransactionMember		      
Cash proceeds from sale of assets 145,000,000us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets
/ us-gaap_BusinessAcquisitionAxis
= rrc_CongerExchangeTransactionMember		     145,000,000us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets
/ us-gaap_BusinessAcquisitionAxis
= rrc_CongerExchangeTransactionMember
Net operating income prior to disposition     12,400,000rrc_DispositionOfAssetsOperatingIncome
/ us-gaap_BusinessAcquisitionAxis
= rrc_CongerExchangeTransactionMember		  
Sale and exchange transaction, closing date   2014-06    
Miscellaneous Proved and Unproved Properties        
Significant Acquisitions And Disposals [Line Items]        
Proceeds from sale of oil and gas   10,700,000us-gaap_ProceedsFromSaleOfOilAndGasPropertyAndEquipment
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= rrc_MiscellaneousSalesMember		 294,000us-gaap_ProceedsFromSaleOfOilAndGasPropertyAndEquipment
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= rrc_MiscellaneousSalesMember		  
(Loss) gain on the sale of assets   (175,000)us-gaap_GainLossOnSaleOfOilAndGasProperty
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= rrc_MiscellaneousSalesMember		 (353,000)us-gaap_GainLossOnSaleOfOilAndGasProperty
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= rrc_MiscellaneousSalesMember		  
West Texas        
Significant Acquisitions And Disposals [Line Items]        
Proceeds from sale of oil and gas   10,500,000us-gaap_ProceedsFromSaleOfOilAndGasPropertyAndEquipment
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= rrc_WestTexasMember