Description Of Business And Summary Of Significant Accounting Policies (Estimated Useful Life Of Long-Term Assets) (Details)	12 Months Ended
	Jan. 01, 2012 years
Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, average	20
Leasehold And Other Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum	7
Estimated useful life, maximum	15
Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum	3
Estimated useful life, maximum	15