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COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Thousands				1 Months Ended
	Feb. 08, 2023 USD ($)	Oct. 24, 2022 USD ($)	Apr. 17, 2019 purchaser	Aug. 31, 2010 formerEmployee	Apr. 12, 2026 USD ($)	Sep. 28, 2025 USD ($)
Loss Contingencies [Line Items]
Accruals for legal matters					$ 17,100
Legal accruals					17,081	$ 17,640
Lease guarantee					$ 23,400
Qdoba guaranteed leases, remaining term					12 years
Cash and restricted cash					$ 2,000
Financial Guarantee
Loss Contingencies [Line Items]
Lease guarantee					$ 1,500
46124
Loss Contingencies [Line Items]
Number of former employees \| formerEmployee				5
Damages awarded		$ 6,400
J&D Restaurant Group v. Jack in the Box Inc.
Loss Contingencies [Line Items]
Damages awarded	$ 8,000
Number of perspective purchasers \| purchaser			2