Stock-Based Employee Compensation (Stock Option Compensation Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		8 Months Ended
	Sep. 08, 2015	Sep. 09, 2014	Sep. 08, 2015	Sep. 09, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation cost	$ 764	$ 596	$ 2,146	$ 1,750
Restaurant Operating Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation cost	109	101	332	300
General and administrative cost [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation cost	$ 655	$ 495	$ 1,814	$ 1,450