Supplemental Financial Information (Property and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Jul. 02, 2013	Jan. 01, 2013
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 246,725	$ 224,987
Accumulated depreciation and amortization	(96,831)	(88,700)
Property and equipment, net	149,894	136,287
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	153,991	139,907
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	84,867	77,202
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 7,867	$ 7,878