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Asset Retirement Obligations - Asset Retirement Obligations (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Asset Retirement Obligation [Abstract]    
Beginning of period $ 287,463us-gaap_AssetRetirementObligation  
Liabilities incurred 1,460us-gaap_AssetRetirementObligationLiabilitiesIncurred  
Liabilities settled (3,257)us-gaap_AssetRetirementObligationLiabilitiesSettled  
Disposition of wells (4,112)rrc_AssetRetirementObligationDispositionOfWells  
Accretion expense 4,723us-gaap_AssetRetirementObligationAccretionExpense  
Change in estimate 14,353us-gaap_AssetRetirementObligationRevisionOfEstimate  
End of period 300,630us-gaap_AssetRetirementObligation  
Less current portion (17,689)us-gaap_AssetRetirementObligationCurrent (15,067)us-gaap_AssetRetirementObligationCurrent
Long-term asset retirement obligations $ 282,941us-gaap_AssetRetirementObligationsNoncurrent