Employee Savings Plans (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 02, 2019	Aug. 03, 2018	Jul. 28, 2017
401(k) Savings Plan [Member]
Defined Contribution Plan [Abstract]
us-gaap_PensionPlansDefinedBenefitMember	us-gaap:DefinedContributionPlanTypeExtensibleList
us-gaap_NonqualifiedPlanMember	us-gaap:DefinedContributionPlanTaxStatusExtensibleList
Requisite service period	90 days
Minimum age of eligible employees required	21 years
Percentage of compensation allowed to be deferred by eligible employees	50.00%
Percentage of company match to employee contribution	50.00%	50.00%	25.00%
Percentage of company contributions that vests annually	20.00%	20.00%	20.00%
Percentage of company contribution that vests on employee's fifth anniversary of employment	100.00%	100.00%	100.00%
Company's contributions to the plan	$ 4,553	$ 3,812	$ 2,501
401(k) Savings Plan [Member] \| Maximum [Member]
Defined Contribution Plan [Abstract]
Percentage of employee's compensation matched by company	5.00%	5.00%	6.00%
Non-Qualified Savings Plan [Member]
Defined Contribution Plan [Abstract]
us-gaap_PensionPlansDefinedBenefitMember	us-gaap:DefinedContributionPlanTypeExtensibleList
us-gaap_NonqualifiedPlanMember	us-gaap:DefinedContributionPlanTaxStatusExtensibleList
Percentage of compensation allowed to be deferred by eligible employees	50.00%
Percentage of eligible bonuses allowed to be deferred	100.00%
Percentage of company match to employee contribution	25.00%	25.00%	25.00%
Percentage of company contributions that vests annually	20.00%	20.00%	20.00%
Percentage of company contribution that vests on employee's fifth anniversary of employment	100.00%	100.00%	100.00%
Market value of the trust assets	$ 30,593
Liability obligations to participants	30,593
Company's contributions to the plan	$ 320	$ 342	$ 291
Non-Qualified Savings Plan [Member] \| Maximum [Member]
Defined Contribution Plan [Abstract]
Percentage of employee's compensation matched by company	6.00%	6.00%	6.00%

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

No definition available.

Name:	cbrl_DefinedContributionPlanContributionsByEmployer
Namespace Prefix:	cbrl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Refers to the minimum age of eligible employees required for a defined contribution plan, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	cbrl_DefinedContributionPlanMinimumAgeOfEligibleEmployeeRequired
Namespace Prefix:	cbrl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Estimated period over which an employee is required to provide service to be eligible to participate in a defined contribution plan, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	cbrl_DefinedContributionPlanRequisiteServicePeriod
Namespace Prefix:	cbrl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

This represents the entire liability recognized in the balance sheet that is associated with the company's non-qualified defined contribution retirement plan.

+ References

No definition available.

+ Details

Name:	cbrl_NonQualifiedDefinedContributionPlanLiabilitiesNoncurrent
Namespace Prefix:	cbrl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of employer's matching contribution that vests on the fifth anniversary.

+ References

No definition available.

+ Details

Name:	cbrl_PercentageOfContributionByEmployerThatVestsOnEmployeeSFifthAnniversaryOfEmployment
Namespace Prefix:	cbrl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of eligible bonus that eligible employees can defer.

+ References

No definition available.

+ Details

Name:	cbrl_PercentageOfEligibleBonusesAllowedToBeDeferred
Namespace Prefix:	cbrl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This represents amount of the entire plan assets recognized in the balance sheet that are associated with the company's rabbi trust established for its non-qualified defined contribution plan.

+ References

No definition available.

+ Details

Name:	cbrl_PlanAssetsForNonQualifiedPlanAssetsNoncurrent
Namespace Prefix:	cbrl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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

- Definition

Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
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

- Definition

Indicates tax status of defined contribution plan designed to provide retirement benefits.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanTaxStatusExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	srt-types:extensibleListItemType
Balance Type:	na
Period Type:	instant

- Definition

Indicates type of defined contribution plan. Includes, but is not limited to, pension plan, other postretirement plan and special and contractual termination benefits payable upon retirement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

Name:	us-gaap_DefinedContributionPlanTypeExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	srt-types:extensibleListItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_RetirementPlanNameAxis=cbrl_QualifiedDefinedContributionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=cbrl_NonQualifiedDefinedContributionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: