Deferred compensation arrangement with individual, vesting period.

No definition available.

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

- Definition

Shares held in rabbi trust.

+ References

No definition available.

+ Details

Name:	rrc_SharesHeldInRabbiTrust
Namespace Prefix:	rrc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Vested shares held in rabbi trust.

+ References

No definition available.

+ Details

Name:	rrc_VestedSharesHeldInRabbiTrust
Namespace Prefix:	rrc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

+ Details

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

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Details

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

Stock-Based Compensation Plans - Additional Information 4 (Detail) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Maximum percentage of employees contribution									75.00%
Maximum percentage of employers contribution in cash									6.00%
Employer contribution									$ 5,800,000	$ 5,100,000
Deferred compensation plan vesting period									3 years
Deferred compensation plan	$ (36,836,000)	$ (46,198,000)	$ 10,519,000	$ (2,035,000)	$ 22,039,000	$ (2,225,000)	$ (6,878,000)	$ 42,360,000	$ (74,550,000)	$ 55,296,000	$ 7,203,000
Shares held in rabbi trust total	2.8rrc_SharesHeldInRabbiTrust				2.8rrc_SharesHeldInRabbiTrust				2.8rrc_SharesHeldInRabbiTrust	2.8rrc_SharesHeldInRabbiTrust
Vested shares held in rabbi trust	2.5rrc_VestedSharesHeldInRabbiTrust				2.4rrc_VestedSharesHeldInRabbiTrust				2.5rrc_VestedSharesHeldInRabbiTrust	2.4rrc_VestedSharesHeldInRabbiTrust