Basis of presentation and summary of significant accounting policies.

No definition available.

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- Definition

Number of restaurant closed.

+ References

No definition available.

+ Details

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- Definition

The number of restaurants with ROU assets with impairment charges.

+ References

No definition available.

+ Details

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- Definition

The number of restaurants with long-lived asset assets with impairment charges.

+ References

No definition available.

+ Details

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, 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://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482130/360-10-45-4

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- Definition

Represents the number of restaurants.

+ References

No definition available.

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

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- Definition

Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impairment of Property and Equipment and ROU Assets (Details) $ in Thousands	12 Months Ended
	Dec. 27, 2023 USD ($)	Dec. 28, 2022 USD ($) restaurant	Dec. 29, 2021 USD ($) restaurant	Dec. 27, 2023 restaurant	Dec. 27, 2023 item
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Operating Lease ROU assets	$ 168,007	$ 165,584
Asset impairment charges	1,500
Texas
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Asset impairment charges			$ 700
Number Of Restaurant Closed \| restaurant			1
Number of restaurants with ROU asset impairment charges \| restaurant			1
California
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Asset impairment charges		$ 500
Number Of Restaurant Closed		1	1	1	1
Number of restaurants \| restaurant				1
Number of restaurants with ROU asset impairment charges \| restaurant			1
Number of Restaurants With Long Lived Asset Impairment Charges \| restaurant		2	3
Closed Or Subleased Restaurant Locations
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Operating Lease ROU assets	42,800	$ 30,700
Closed-store reserve expense	$ 200	$ 300	$ 400