Impairment Of Long-Lived Assets And Other Lease Charges Closed Restaurant Reserve Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2016	Dec. 28, 2014
Restructuring Cost and Reserve [Line Items]
Balance, beginning of year	$ 1,721	$ 1,466
Payments, net	(1,228)	(721)
Other adjustments	218	165
Balance, end of year	2,088	1,721
Provisions for closures [Member]
Restructuring Cost and Reserve [Line Items]
Provisions for restaurant closures	1,472	724
Changes in estimates [Member]
Restructuring Cost and Reserve [Line Items]
Provisions for restaurant closures	$ (95)	$ 87