BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Indefinite Lived Intangible Assets (Details) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 24, 2025 USD ($)	Sep. 25, 2024 USD ($)	Sep. 24, 2025 USD ($) item	Sep. 25, 2024 USD ($)	Dec. 25, 2024 USD ($)
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Number of reporting unit \| item			1
Goodwill decrement related to dispositions of restaurants			$ 0.0		$ 0.0
Goodwill and intangible asset impairment	$ 0.0	$ 0.0	$ 0.0	$ 0.0

Amount of divestiture of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 24
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482548/350-20-55-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-4

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Balance Type:	credit
Period Type:	duration