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Other Current Liabilities (Details) - USD ($)
$ in Thousands
Mar. 29, 2017
Dec. 28, 2016
Other Liabilities, Current [Abstract]    
Accrued salaries and vacation $ 15,757 $ 27,056
Accrued insurance, primarily current portion of liability for insurance claims 6,260 6,651
Accrued taxes 7,192 7,407
Accrued advertising 8,539 8,051
Gift cards 4,461 5,474
Other 10,510 10,157
Other current liabilities $ 52,719 $ 64,796