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System Optimization Gains, Net Assets Held for Sale (Details)
$ in Thousands
Apr. 04, 2021
USD ($)
number_of_restaurants
Jan. 03, 2021
USD ($)
number_of_restaurants
Long lived assets held for sale    
Number of restaurants classified as held for sale | number_of_restaurants 47 43
Net restaurant assets held for sale    
Long lived assets held for sale    
Assets held for sale $ 21,747 $ 20,587
Other assets held for sale    
Long lived assets held for sale    
Assets held for sale $ 1,732 $ 1,732