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Other Noncurrent Liabilities - Schedule of Other Noncurrent Liabilities (Details) - USD ($)
$ in Thousands
Sep. 26, 2018
Dec. 27, 2017
Other Liabilities, Noncurrent [Abstract]    
Deferred rent $ 10,403 $ 9,403
Franchise contract liability 5,456 620
Other 5,017 2,749
Total other noncurrent liabilities $ 20,876 $ 12,772