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Other Long-term Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 25, 2016
Other Long-term Liabilities    
Deferred compensation plan $ 28,690 $ 22,047
Insurance reserves 21,995 18,450
Accrued rent 7,129 6,337
Other 2,332 6,259
Total $ 60,146 $ 53,093