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GOODWILL AND INTANGIBLE ASSETS, NET - Changes in Carrying Amount of Goodwill - (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 13, 2025	Jul. 07, 2024	Apr. 13, 2025	Sep. 29, 2024
Goodwill [Roll Forward]
Goodwill	$ 323,980		$ 323,980	$ 323,833
Accumulated impairment losses	(187,954)		(187,954)	(162,624)
Goodwill, beginning balance			161,209
Impairment of goodwill			25,330
Reclassified from (to) assets held for sale			147
Goodwill, ending balance	136,026		136,026
Jack in the Box restaurant operations
Goodwill [Roll Forward]
Goodwill	136,026		136,026	135,827
Accumulated impairment losses	0		0	0
Goodwill, beginning balance			135,827
Impairment of goodwill			0
Reclassified from (to) assets held for sale			199
Goodwill, ending balance	136,026		136,026
Del Taco
Goodwill [Roll Forward]
Goodwill	187,954		187,954	188,006
Accumulated impairment losses	(187,954)		(187,954)	$ (162,624)
Goodwill, beginning balance			25,382
Impairment of goodwill	25,300	$ 162,600	25,330
Reclassified from (to) assets held for sale			(52)
Goodwill, ending balance	$ 0		$ 0

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Amount, after accumulated impairment loss, 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.

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