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Other Noncurrent Liabilities - Schedule of Other Noncurrent Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 27, 2018
Dec. 27, 2017
Other Liabilities, Noncurrent [Abstract]    
Deferred rent $ 9,982 $ 9,403
Contract with Customer, noncurrent 5,408 620
Other 5,888 2,749
Total other noncurrent liabilities $ 21,278 $ 12,772