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NATURE OF OPERATIONS - Organization and Nature of Operations - Franchiser (Details)	Dec. 30, 2020 Restaurant
Franchisor Disclosure [Line Items]
Number of Restaurants	311
Company-operated | United States
Franchisor Disclosure [Line Items]
Number of Restaurants	183
Licensed | United States
Franchisor Disclosure [Line Items]
Number of Restaurants	22
Licensed | Other countries
Franchisor Disclosure [Line Items]
Number of Restaurants	106

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