Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 28, 2016	Dec. 30, 2015
Other Liabilities, Current [Abstract]
Accrued salaries and vacation	$ 27,056	$ 30,549
Accrued insurance, primarily current portion of liability for insurance claims	6,651	7,076
Accrued taxes	7,407	7,311
Accrued advertising	8,051	7,737
Accrued pension	259	9,648
Gift cards	5,474	4,611
Other	9,898	10,616
Other current liabilities	$ 64,796	$ 77,548