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Commitments and Contingencies - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Transportation commitments future minimum transportation fees due to three months change	$ 52.2
Period of transportation commitments future minimum transportation fees due to three months change	20 years
Transportation commitments future minimum transportation fees due to three months change, end year	2038

X

- Definition

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

+ References

No definition available.

+ Details

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

X

- Definition

Number of terms transportation commitments future minimum transportation fees due during period.

+ References

No definition available.

+ Details

Name:	rrc_NumberOfTermsTransportationCommitmentsFutureMinimumTransportationFeesDueDuringPeriod
Namespace Prefix:	rrc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Transportation commitments future minimum transportation fees due end year.

+ References

No definition available.

+ Details

Name:	rrc_TransportationCommitmentsFutureMinimumTransportationFeesDueEndYear
Namespace Prefix:	rrc_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration