Impairment Of Long-Lived Assets And Other Lease Charges Closed Restaurant Reserve Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016
Restructuring Cost and Reserve [Line Items]
Balance, beginning of year	$ 2,088	$ 1,721
Payments, net	(691)	(1,228)
Other adjustments	146	218
Balance, end of year	1,513	2,088
Provisions for closures [Member]
Restructuring Cost and Reserve [Line Items]
Provisions for restaurant closures	59	1,472
Changes in estimates of accrued costs	59	1,472
Changes in estimates [Member]
Restructuring Cost and Reserve [Line Items]
Provisions for restaurant closures	(89)	(95)
Changes in estimates of accrued costs	$ (89)	$ (95)