Fixed Assets (Schedule Of Fixed Assets) (Details) - USD ($) $ in Thousands	Jan. 02, 2016	Jan. 03, 2015
Property, Plant and Equipment [Line Items]
Gross fixed assets	$ 741,355	$ 720,157
Accumulated depreciation	(339,802)	(296,354)
PP&E Net including assets held for sale	401,553	423,803
Fixed assets held for sale	(15,678)	(11,007)
Fixed assets, net	401,465	423,612
Land and land improvements
Property, Plant and Equipment [Line Items]
Gross fixed assets	28,508	27,816
Buildings and Building improvements
Property, Plant and Equipment [Line Items]
Gross fixed assets	156,725	150,339
Machinery, Equipment and Computer Systems
Property, Plant and Equipment [Line Items]
Gross fixed assets	506,649	490,478
Trucks, Trailors and Automobiles
Property, Plant and Equipment [Line Items]
Gross fixed assets	33,760	33,364
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Gross fixed assets	4,210	6,312
Construction in progress
Property, Plant and Equipment [Line Items]
Gross fixed assets	11,503	11,848
Fixed assets held for sale
Property, Plant and Equipment [Line Items]
Fixed assets held for sale	$ (88)	$ (191)