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NATURE OF OPERATIONS - Organization and Nature of Operations - Franchiser (Details)	Dec. 26, 2018 Restaurant
Franchisor Disclosure [Line Items]
Number of Restaurants	208
Company-operated | United States
Franchisor Disclosure [Line Items]
Number of Restaurants	124
Licensed | United States
Franchisor Disclosure [Line Items]
Number of Restaurants	12
Licensed | Other countries
Franchisor Disclosure [Line Items]
Number of Restaurants	72

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