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GOODWILL AND INTANGIBLE ASSETS, NET - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Apr. 13, 2025	Jul. 07, 2024	Apr. 14, 2024	Apr. 13, 2025	Apr. 14, 2024
Goodwill [Line Items]
Impairment of goodwill				$ 25,330
Operating restaurant impairment charges	$ 1,129		$ 0	1,877	$ 0
Del Taco
Goodwill [Line Items]
Impairment of goodwill	$ 25,300	$ 162,600		$ 25,330
Operating restaurant impairment charges			$ 2,200

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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.

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