PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	Jun. 24, 2020	Dec. 25, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 464,012	$ 436,648
Less: accumulated depreciation	141,850	121,786
Property and equipment, net	322,162	314,862
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	321,137	302,204
Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	57,669	54,404
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,986	18,082
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	25,544	24,226
Financing equipment lease assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,383	7,442
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 32,293	$ 30,290

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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