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Introduction and Basis of Reporting - (Narrative) (Details) | 12 Months Ended
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Dec. 25, 2024 state territory restaurant country
Franchisor Disclosure [Line Items] |
Number of restaurants | 1,568
Denny's Brand |
Franchisor Disclosure [Line Items] |
Number of restaurants | 1,499
Number of states in which entity operates | state | 50
Number of territories in which entity operates | territory | 2
Number of foreign countries in which entity operates | country | 12
Denny's Brand | Geographic Concentration Risk | Geographic Area | California |
Franchisor Disclosure [Line Items] |
Percentage of restaurants operated by geographic region | 24.00%
Denny's Brand | Geographic Concentration Risk | Geographic Area | Texas |
Franchisor Disclosure [Line Items] |
Percentage of restaurants operated by geographic region | 13.00%
Denny's Brand | Geographic Concentration Risk | Geographic Area | Florida |
Franchisor Disclosure [Line Items] |
Percentage of restaurants operated by geographic region | 8.00%
Keke's |
Franchisor Disclosure [Line Items] |
Number of restaurants | 69
Number of states in which entity operates | state | 6
Keke's | Geographic Concentration Risk | Geographic Area | Florida |
Franchisor Disclosure [Line Items] |
Percentage of restaurants operated by geographic region | 88.00%
Franchise |
Franchisor Disclosure [Line Items] |
Number of restaurants | 1,493
Franchise | Denny's Brand |
Franchisor Disclosure [Line Items] |
Number of restaurants | 1,438
Franchise | Keke's |
Franchisor Disclosure [Line Items] |
Number of restaurants | 55
Company Restaurants |
Franchisor Disclosure [Line Items] |
Number of restaurants | 75
Company Restaurants | Denny's Brand |
Franchisor Disclosure [Line Items] |
Number of restaurants | 61
Company Restaurants | Keke's |
Franchisor Disclosure [Line Items] |
Number of restaurants | 14

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