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GOODWILL AND INTANGIBLE ASSETS, NET - Changes in Carrying Amount of Goodwill - (Details) - USD ($) $ in Thousands | 3 Months Ended | 4 Months Ended
--- | --- | ---
Sep. 29, 2024 | Jan. 19, 2025
Goodwill [Roll Forward] |  |
Goodwill | $ 323,833 | $ 323,968
Accumulated impairment losses | (162,624) | (162,624)
Goodwill, beginning balance |  | 161,209
Reclassified from (to) assets held for sale |  | 135
Goodwill, ending balance | 161,209 | 161,344
Jack in the Box restaurant operations |  |
Goodwill [Roll Forward] |  |
Goodwill | 135,827 | 136,014
Accumulated impairment losses | 0 | 0
Goodwill, beginning balance |  | 135,827
Reclassified from (to) assets held for sale |  | 187
Goodwill, ending balance | 135,827 | 136,014
Del Taco |  |
Goodwill [Roll Forward] |  |
Goodwill | 188,006 | 187,954
Accumulated impairment losses | (162,624) | (162,624)
Goodwill, beginning balance |  | 25,382
Impairment of goodwill | (162,600) |
Reclassified from (to) assets held for sale |  | (52)
Goodwill, ending balance | $ 25,382 | $ 25,330

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