Fixed Assets (Schedule Of Fixed Assets) (Details) - USD ($) $ in Thousands	Oct. 03, 2015	Jan. 03, 2015
Property, Plant and Equipment [Line Items]
Gross fixed assets	$ 746,362	$ 720,157
Accumulated depreciation	(330,352)	(296,354)
PP&E Net including assets held for sale	416,010	423,803
Fixed assets, net	415,916	423,612
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross fixed assets	28,131	27,816
Buildings and Building improvements
Property, Plant and Equipment [Line Items]
Gross fixed assets	155,826	150,339
Machinery, Equipment and Computer Systems
Property, Plant and Equipment [Line Items]
Gross fixed assets	507,701	490,478
Trucks, Trailors and Automobiles
Property, Plant and Equipment [Line Items]
Gross fixed assets	35,601	33,364
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Gross fixed assets	4,366	6,312
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Gross fixed assets	14,737	11,848
Fixed Assets Held For Sale [Member]
Property, Plant and Equipment [Line Items]
Assets Held-for-sale, Not Part of Disposal Group	$ (94)	$ (191)