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Revenue - Other (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 25, 2018
Sep. 25, 2018
Dec. 26, 2017
Revenue      
Estimated gift cards sold by Company that are never redeemed (as a percent)   4.00%  
Gift card fees, net of gift card breakage income $ 1,200 $ 4,500  
Deferred revenue-gift cards 87,947 87,947 $ 156,627
Franchise royalties and fees      
Revenue      
Deferred revenue recognized 100 $ 200  
Sales percentage, remittance to marketing and advertising   0.30%  
Franchise royalties      
Revenue      
Ongoing royalties received as a percentage of gross sales from domestic franchisees and international franchisee   4.00%  
Gift cards      
Revenue      
Deferred revenue recognized 12,900 $ 99,300  
Other Liabilities | Franchise royalties and fees      
Revenue      
Deferred revenue $ 1,200 $ 1,200 $ 1,200