Derivative Activities - Schedule of Additional Information Related to Master Netting Arrangements with Derivative Counterparties (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Gross Amounts of Recognized Assets	$ 43,594	$ 124,647
Gross Amounts Offset in the Balance Sheet	(40,299)	(65,767)
Net Amounts of Assets Presented in the Balance Sheet	3,295	58,880
Gross Amounts of Recognized (Liabilities)	(151,715)	(119,789)
Gross Amounts Offset in the Balance Sheet	40,299	65,767
Net Amounts of (Liabilities) Presented in the Balance Sheet	(111,416)	(54,022)
Commodity \| Swaps \| Natural Gas
Derivative [Line Items]
Gross Amounts of Recognized Assets	11,332	87,794
Gross Amounts Offset in the Balance Sheet	(8,481)	(4,106)
Net Amounts of Assets Presented in the Balance Sheet	2,851	83,688
Gross Amounts of Recognized (Liabilities)	(12,764)	(216)
Gross Amounts Offset in the Balance Sheet	8,481	4,106
Net Amounts of (Liabilities) Presented in the Balance Sheet	(4,283)	3,890
Commodity \| Swaps \| Crude Oil
Derivative [Line Items]
Gross Amounts of Recognized Assets	0	2
Gross Amounts Offset in the Balance Sheet	(1,269)	(7,928)
Net Amounts of Assets Presented in the Balance Sheet	(1,269)	(7,926)
Gross Amounts of Recognized (Liabilities)	(52,493)	(24,726)
Gross Amounts Offset in the Balance Sheet	1,269	7,928
Net Amounts of (Liabilities) Presented in the Balance Sheet	(51,224)	(16,798)
Commodity \| Swaps \| NGLs (C2-Ethane)
Derivative [Line Items]
Gross Amounts of Recognized Assets		57
Gross Amounts Offset in the Balance Sheet		0
Net Amounts of Assets Presented in the Balance Sheet		57
Gross Amounts of Recognized (Liabilities)	(85)
Gross Amounts Offset in the Balance Sheet	0
Net Amounts of (Liabilities) Presented in the Balance Sheet	(85)
Commodity \| Swaps \| NGLs (C3-Propane)
Derivative [Line Items]
Gross Amounts of Recognized Assets		0
Gross Amounts Offset in the Balance Sheet		(12,556)
Net Amounts of Assets Presented in the Balance Sheet		(12,556)
Gross Amounts of Recognized (Liabilities)	(22,591)	(34,325)
Gross Amounts Offset in the Balance Sheet	0	12,556
Net Amounts of (Liabilities) Presented in the Balance Sheet	(22,591)	(21,769)
Commodity \| Swaps \| Freight
Derivative [Line Items]
Gross Amounts of Recognized Assets	166	276
Gross Amounts Offset in the Balance Sheet	(166)	(276)
Net Amounts of Assets Presented in the Balance Sheet	0	0
Gross Amounts of Recognized (Liabilities)	0
Gross Amounts Offset in the Balance Sheet	166	276
Net Amounts of (Liabilities) Presented in the Balance Sheet	166	276
Commodity \| Swaps \| NGLs (NC4-Normal Butane)
Derivative [Line Items]
Gross Amounts of Recognized Assets		0
Gross Amounts Offset in the Balance Sheet		(6,051)
Net Amounts of Assets Presented in the Balance Sheet		(6,051)
Gross Amounts of Recognized (Liabilities)	(8,906)	(11,188)
Gross Amounts Offset in the Balance Sheet	0	6,051
Net Amounts of (Liabilities) Presented in the Balance Sheet	(8,906)	(5,137)
Commodity \| Swaps \| NGLs (C5-Natural Gasoline)
Derivative [Line Items]
Gross Amounts of Recognized Assets		0
Gross Amounts Offset in the Balance Sheet		(6,727)
Net Amounts of Assets Presented in the Balance Sheet		(6,727)
Gross Amounts of Recognized (Liabilities)	(17,585)	(13,488)
Gross Amounts Offset in the Balance Sheet	0	6,727
Net Amounts of (Liabilities) Presented in the Balance Sheet	(17,585)	(6,761)
Commodity \| Swaptions \| Natural Gas
Derivative [Line Items]
Gross Amounts of Recognized Assets	14,045	18,817
Gross Amounts Offset in the Balance Sheet	(12,511)	(8,103)
Net Amounts of Assets Presented in the Balance Sheet	1,534	10,714
Gross Amounts of Recognized (Liabilities)	(14,530)	(12,283)
Gross Amounts Offset in the Balance Sheet	12,511	8,103
Net Amounts of (Liabilities) Presented in the Balance Sheet	(2,019)	(4,180)
Commodity \| Basis Swaps \| Natural Gas
Derivative [Line Items]
Gross Amounts of Recognized Assets	846	1,815
Gross Amounts Offset in the Balance Sheet	(667)	(6,673)
Net Amounts of Assets Presented in the Balance Sheet	179	(4,858)
Gross Amounts of Recognized (Liabilities)	(2,754)	(9,580)
Gross Amounts Offset in the Balance Sheet	667	6,673
Net Amounts of (Liabilities) Presented in the Balance Sheet	(2,087)	(2,907)
Commodity \| Collars \| Natural Gas
Derivative [Line Items]
Gross Amounts of Recognized Assets		3,039
Gross Amounts Offset in the Balance Sheet		(500)
Net Amounts of Assets Presented in the Balance Sheet		2,539
Gross Amounts Offset in the Balance Sheet		500
Net Amounts of (Liabilities) Presented in the Balance Sheet		500
Commodity \| Collars \| Crude Oil
Derivative [Line Items]
Gross Amounts of Recognized Assets	12
Gross Amounts Offset in the Balance Sheet	(12)
Net Amounts of Assets Presented in the Balance Sheet	0
Gross Amounts of Recognized (Liabilities)	0
Gross Amounts Offset in the Balance Sheet	12
Net Amounts of (Liabilities) Presented in the Balance Sheet	12
Commodity \| Collars \| NGLs (C3-Propane)
Derivative [Line Items]
Gross Amounts of Recognized Assets		85
Gross Amounts Offset in the Balance Sheet		(85)
Net Amounts of Assets Presented in the Balance Sheet		0
Gross Amounts Offset in the Balance Sheet		85
Net Amounts of (Liabilities) Presented in the Balance Sheet		85
Commodity \| Spread Swaps \| NGLs (C3-Propane)
Derivative [Line Items]
Gross Amounts of Recognized Assets	17,193	12,762
Gross Amounts Offset in the Balance Sheet	(17,193)	(12,762)
Net Amounts of Assets Presented in the Balance Sheet	0	0
Gross Amounts of Recognized (Liabilities)	(19,306)	(13,983)
Gross Amounts Offset in the Balance Sheet	17,193	12,762
Net Amounts of (Liabilities) Presented in the Balance Sheet	(2,113)	$ (1,221)
Commodity \| Calls \| Natural Gas
Derivative [Line Items]
Gross Amounts of Recognized (Liabilities)	(701)
Gross Amounts Offset in the Balance Sheet	0
Net Amounts of (Liabilities) Presented in the Balance Sheet	$ (701)

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226003-175313

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

+ Details

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

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226000-175313

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=SL51823488-111719

+ Details

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

- Definition

Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226006-175313

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41678-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

+ Details

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

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=SL51823488-111719

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226000-175313

+ Details

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

- Definition

Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41678-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226006-175313

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313

+ Details

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

- Definition

Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

+ References

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_SwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EnergyAxis=rrc_NaturalGasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EnergyAxis=us-gaap_CrudeOilMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EnergyAxis=rrc_NGLsCTwoEthaneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EnergyAxis=rrc_NGLsCThreePropaneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EnergyAxis=rrc_FreightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EnergyAxis=rrc_NGLsNCFourNormalButaneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EnergyAxis=rrc_NGLsCFiveNaturalGasolineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_SwaptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_BasisSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=rrc_CollarsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=rrc_SpreadSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=rrc_DerivativesCallsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: