Red Robin Gourmet Burgers, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- COVER PAGE
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Recent Accounting Pronouncements (Policies)
Notes Tables
Notes Details

Fair Value Measurements - Additional Information (Details)

v3.26.1

Fair Value Measurements - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 12, 2026 USD ($) restaurant	Jul. 13, 2025 USD ($) restaurant	Jul. 12, 2026 USD ($) restaurant	Jul. 13, 2025 USD ($) restaurant	Dec. 28, 2025 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of impaired locations \| restaurant	1	1	2	1
Carrying value of impaired assets prior to impairment	$ 3,200	$ 700
Proceeds from sale of property and equipment, and other			$ 5,424	$ 6,118
Asset impairment	1,124	720	1,673	$ 720
Impaired restaurant assets		$ 0
Recurring \| Phantom restricted stock units (PRSUs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stock-based compensation liability fair value disclosure	2,100		2,100		$ 300
Fair Value, Inputs, Level 1 \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets, fair value disclosure	$ 1,800		$ 1,800		$ 1,900

- Definition

Deferred Compensation Plan Assets, Fair Value Disclosure

+ References

No definition available.

+ Details

Name:	rrgb_DeferredCompensationPlanAssetsFairValueDisclosure
Namespace Prefix:	rrgb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair Value, Impaired Restaurant Assets

+ References

No definition available.

+ Details

Name:	rrgb_FairValueImpairedRestaurantAssets
Namespace Prefix:	rrgb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number Of Restaurants Impaired

+ References

No definition available.

+ Details

Name:	rrgb_NumberOfRestaurantsImpaired
Namespace Prefix:	rrgb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Restaurant Assets, Carrying Value Before Impairment, Fair Value Disclosure

+ References

No definition available.

+ Details

Name:	rrgb_RestaurantAssetsCarryingValueBeforeImpairmentFairValueDisclosure
Namespace Prefix:	rrgb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Stock-based Compensation Liability, Fair Value Disclosure

+ References

No definition available.

+ Details

Name:	rrgb_StockBasedCompensationLiabilityFairValueDisclosure
Namespace Prefix:	rrgb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of impairment loss for asset. Includes, but is not limited to, tangible and intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 942
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480095/942-10-S50-1

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 942
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480035/942-10-S99-6

+ Details

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

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 45
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480865/815-45-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

+ Details

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

- Definition

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

+ Details

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

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=rrgb_PhantomRestrictedStockUnitsPRSUsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: