Supplemental Information on Natural Gas and Oil Exploration, Development and Production Activities (Unaudited) - Changes in Proved Undeveloped Reserves for 2013 (Mmcfe) (Parenthetical) (Detail)	12 Months Ended
Dec. 31, 2014 MMcfe
Extractive Industries [Abstract]
Proved undeveloped reserves dropped	611,341rrc_ProvedUnDevelopedReservesDropped

The number of Proved Undeveloped Reserves dropped in the current year due to the application of the five year rule.

No definition available.

Name:	rrc_ProvedUnDevelopedReservesDropped
Namespace Prefix:	rrc_
Data Type:	num:energyItemType
Balance Type:	na
Period Type:	duration