Indebtedness - Senior Subordinated Notes - Additional Information (Detail) (USD $)	9 Months Ended
Sep. 30, 2013	Dec. 31, 2012
5.00% Senior Subordinated notes due 2023
Debt Instrument [Line Items]
Aggregate principal amount of senior subordinated notes	$ 750,000,000
Interest rate on senior subordinated notes	5.00%	5.00%
Net proceeds from issuance of subordinated notes	738,800,000
Deferred Finance Costs	11,200,000
Aggregate principal amount of senior subordinated notes exchanged	$ 0
5.00% Senior Subordinated notes due 2023 \| Senior note redeemed in March 15, 2018
Debt Instrument [Line Items]
Maximum redemption price of notes as percentage of principal amount	102.50%
5.00% Senior Subordinated notes due 2023 \| Senior note redeemed in March 15, 2021
Debt Instrument [Line Items]
Maximum redemption price of notes as percentage of principal amount	100.00%
5.00% Senior Subordinated notes due 2023 \| Senior note redeemed in March 15, 2016
Debt Instrument [Line Items]
Maximum redemption price of notes as percentage of principal amount	105.00%
Maximum percentage of original aggregate amount of notes that can be redeemed	35.00%
Minimum percentage of original aggregate principal amount of notes to remain outstanding immediately after redemption	65.00%
Maximum number of days after the date of the closing of the equity offering that the redemption should occur	60 days
Subordinated Debt
Debt Instrument [Line Items]
Purchase price of senior subordinate notes as a percentage of principal	101.00%

Maximum number of days after date of closing of equity offering that redemption should occur.

No definition available.

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

- Definition

Maximum percentage of original aggregate amount of notes that can be redeemed.

+ References

No definition available.

+ Details

Name:	rrc_MaximumPercentageOfOriginalAggregateAmountOfNotesThatCanBeRedeemed
Namespace Prefix:	rrc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum redemption price of notes as percentage of principal amount.

+ References

No definition available.

+ Details

Name:	rrc_MaximumRedemptionPriceOfNotesAsPercentageOfPrincipalAmount
Namespace Prefix:	rrc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Minimum percentage of original aggregate principal amount of notes to remain outstanding immediately after redemption.

+ References

No definition available.

+ Details

Name:	rrc_MinimumPercentageOfOriginalAggregatePrincipalAmountOfNotesToRemainOutstandingImmediatelyAfterRedemption
Namespace Prefix:	rrc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

Name:	us-gaap_DebtConversionConvertedInstrumentAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph e

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross amount, as of the balance sheet date, of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings in periods after one year or beyond the normal operating cycle, if longer, over the life of the long-term debt instruments to which such costs pertain.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DeferredFinanceCostsNoncurrentGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromDebtNetOfIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration