REVENUE FROM CONTRACTS WITH CUSTOMERS - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 27, 2023 USD ($) item restaurant	Dec. 28, 2022 USD ($) restaurant	Dec. 29, 2021 USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Number of revenue streams | item	2
Gain on sale of restaurants	$ 5,034	$ 848	$ (1,534)
Restaurant Sale | California, Utah and Texas | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Additional contract liability	$ 300
Number of restaurants | restaurant	18
Gain on sale of restaurants	$ 5,000
Restaurant Sale | Orange Country | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Additional contract liability		$ 800
Number of restaurants | restaurant		3