Business and Summary of Significant Accounting Policies (Property & Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2018	Jan. 03, 2017	Dec. 29, 2015
Property, Plant and Equipment [Line Items]
Depreciation	$ 24,500	$ 28,000	$ 27,700
Internal payroll costs capitalized	900	2,400	3,000
Interest costs capitalized	$ 200	$ 300	$ 400
Leasehold Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	20 years
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	15 years
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	7 years
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years