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Summary of Significant Accounting Policies (Property and Depreciation) (Details)
12 Months Ended
Dec. 26, 2012
Building Assets [Member] | Minimum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, useful life 5 years
Building Assets [Member] | Maximum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, useful life 30 years
Equipment [Member] | Minimum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, useful life 2 years
Equipment [Member] | Maximum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, useful life 10 years
Leasehold Improvements [Member] | Minimum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, useful life 5 years
Leasehold Improvements [Member] | Maximum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, useful life 15 years