Supplemental Financial Information (Property and Equipment) (Details) - USD ($) $ in Thousands	Sep. 29, 2015	Dec. 30, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 338,313	$ 334,900
Accumulated depreciation and amortization	(140,215)	(129,327)
Property and equipment, net	198,098	205,573
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	210,927	208,678
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	117,737	114,148
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 9,649	$ 12,074