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Stock-Based Compensation Plans - PSUA Activity (Parenthetical) (Detail)
 12 Months Ended
Dec. 31, 2014
Minimum  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Actual payout of shares on performance units granted 0.00%rrc_ActualPayoutOfSharesOnPerformanceUnitsGranted
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Actual payout of shares on performance units granted 150.00%rrc_ActualPayoutOfSharesOnPerformanceUnitsGranted
/ us-gaap_RangeAxis
= us-gaap_MaximumMember