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FRANCHISE ACQUISITIONS - Narrative (Details) $ in Thousands | 3 Months Ended | 4 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jul. 06, 2025 USD ($) restaurants | Apr. 13, 2025 restaurant | Jul. 07, 2024 USD ($) | Jul. 07, 2024 restaurants | Jul. 07, 2024 restaurant | Apr. 14, 2024 restaurant | Jan. 19, 2025 restaurant | Jan. 21, 2024 USD ($) transaction | Jul. 06, 2025 USD ($) restaurant | Jul. 07, 2024 USD ($) restaurants | Sep. 29, 2024 restaurants
Asset Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Acquisition of Del Taco company-operated restaurants |  |  |  |  |  |  |  |  | $ 6,326 |  |
Gains on acquisition of restaurants | $ 0 |  | $ 0 |  |  |  |  |  | 6 | $ 2,357 |
Del Taco |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Acquisition of Del Taco company-operated restaurants | $ 6,300 |  |  |  |  |  |  |  | $ 6,326 |  |
Del Taco |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of restaurants acquired from franchisees | 18 | 0 |  | 0 | 0 | 0 | 0 |  | 18 | 9 | 9
Purchase price | $ 7,193 |  | 0 |  |  |  |  | $ 86 | $ 7,193 | $ 86 |
Acquisition of Del Taco company-operated restaurants | 6,326 |  | 0 |  |  |  |  |  | 6,326 | 0 |
Number of business combination transactions | transaction |  |  |  |  |  |  |  | 2 |  |  |
Gains on acquisition of restaurants | $ 0 |  | $ 0 |  |  |  |  | $ 2,400 | $ 0 | $ 2,357 |

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