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+ Details

NATURE OF OPERATIONS (Details) - Restaurant	Sep. 27, 2023	Dec. 28, 2022
Class of Stock [Line Items]
Number of restaurants	495
Shake Shack Inc.
Class of Stock [Line Items]
Ownership percent of noncontrolling interest	93.30%	93.20%
United States \| Company-operated
Class of Stock [Line Items]
Number of restaurants	280
United States \| Licensed
Class of Stock [Line Items]
Number of restaurants	39
Non-United States \| Licensed
Class of Stock [Line Items]
Number of restaurants	176