Supplemental Financial Information (Property and Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 29, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 356,735	$ 348,091
Accumulated depreciation and amortization	(150,278)	(144,378)
Property and equipment, net	206,457	203,713
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	224,830	216,474
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	124,170	120,132
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 7,735	$ 11,485