PROPERTY AND EQUIPMENT - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2023 USD ($) restaurant	Sep. 28, 2022 USD ($) restaurant	Sep. 27, 2023 USD ($) restaurant	Sep. 28, 2022 USD ($) restaurant
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 3,900	$ 3,500	$ 11,300	$ 10,700
Impairment of property and equipment	$ 979	100	$ 979	353
California
Property, Plant and Equipment [Line Items]
Impairment of property and equipment		$ 100		$ 400
Number of restaurants primarily responsible for impairment | restaurant		1		1
Nevada
Property, Plant and Equipment [Line Items]
Number of restaurants primarily responsible for impairment | restaurant	1		1