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Indebtedness - Debt Outstanding (Parenthetical) (Detail)
Mar. 31, 2015
Dec. 31, 2014
Notes Payable to Banks | 1.8% Bank Debt    
Debt Instrument [Line Items]    
Bank debt percentage 1.80%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= rrc_OnePointEightPercentBankDebtMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableToBanksMember		 1.80%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= rrc_OnePointEightPercentBankDebtMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableToBanksMember
Senior Subordinated Notes | 6.75% Senior Subordinated Notes Due 2020    
Debt Instrument [Line Items]    
Interest rate on senior subordinated notes 6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_SixPointSevenFivePercentTwoThousandTwentyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember		 6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_SixPointSevenFivePercentTwoThousandTwentyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember
Senior Subordinated Notes | 5.75% Senior Subordinated Notes Due 2021    
Debt Instrument [Line Items]    
Interest rate on senior subordinated notes 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_FivePointSevenFivePercentTwoThousandTwentyOneMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember		 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_FivePointSevenFivePercentTwoThousandTwentyOneMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember
Senior Subordinated Notes | 5.00% Senior Subordinated Notes Due 2022    
Debt Instrument [Line Items]    
Interest rate on senior subordinated notes 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_FivePercentTwoThousandTwentyTwoMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember		 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_FivePercentTwoThousandTwentyTwoMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember
Senior Subordinated Notes | 5.00% Senior Subordinated Notes Due 2023    
Debt Instrument [Line Items]    
Interest rate on senior subordinated notes 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_FivePercentTwoThousandTwentyThreeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember		 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= rrc_FivePercentTwoThousandTwentyThreeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorSubordinatedNotesMember