PROPERTY AND EQUIPMENT, NET - Schedule of PP&E (Details) - USD ($) $ in Thousands	Oct. 01, 2023	Dec. 25, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 446,288	$ 356,375
Less accumulated depreciation	(130,202)	(113,392)
Total property and equipment, net	316,086	242,983
Land
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	600	600
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	247,536	206,849
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	72,395	58,430
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	19,282	18,472
Computer hardware and software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	41,632	35,190
Vehicles
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	508	565
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 64,335	$ 36,269