Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Property and equipment [Line Items]
Land	$ 8,112	$ 19,126
Owned buildings	9,174	13,625
Leasehold improvements	265,008	215,673
Equipment	203,412	181,283
Assets subject to capital leases	16,948	16,547
Propert and equipment, gross	502,654	446,254
Less accumulated depreciation and amortization	(254,807)	(226,140)
Property and equipment, net	247,847	220,114
Capital leases, accumulated depreciation	11,008	9,553
Depreciation expense	47,295	39,845	$ 36,923
Property and Equipment [Member]
Property and equipment [Line Items]
Depreciation expense	$ 39,918	$ 33,878	$ 31,372