Impairment Of Long-Lived Assets And Other Lease Charges Closed Restaurant Reserve Activity (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
	Oct. 02, 2016	Oct. 02, 2016	Sep. 27, 2015	Jan. 03, 2016
Restructuring Reserve [Roll Forward]
Closed-restaurant reserve, beginning of the period		$ 2,088	$ 1,721	$ 1,721
Provisions for restaurant closures		0	$ 1,500	1,472
Changes in estimates of accrued costs	$ 100	(80)		(95)
Payments, net		(581)		(1,228)
Other adjustments, including the effect of discounting future obligations		114		218
Closed-restaurant reserve, end of the period	$ 1,541	$ 1,541		$ 2,088