Commitments and Contingencies - Additional Information (Detail) $ in Billions	9 Months Ended
Sep. 30, 2018 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Transportation commitments future minimum transportation fees due to nine months change	$ 2.4
Period of transportation commitments future minimum transportation fees due to nine months change	20 years
Transportation commitments future minimum transportation fees due to nine months change, end year	2038

Change in the minimum commitment related to transportation agreements that must be made within the specified time period of the agreement.

No definition available.

Name:	rrc_ChangeInTransportationCommitmentsFutureMinimumTransportationFeesDue
Namespace Prefix:	rrc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant