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Goodwill, Other Intangible Assets and Other Assets - Other Assets (Details) (Preferred Stock [Member], USD $)
In Thousands, unless otherwise specified
Sep. 27, 2014
Dec. 28, 2013
Schedule of Cost-method Investments [Line Items]    
Cost Method Investments $ 10,501 $ 10,501
Advanced Scientific Concepts, Inc. [Member]
   
Schedule of Cost-method Investments [Line Items]    
Cost Method Investments 2,500 2,500
InTouch Technologies, Inc. [Member]
   
Schedule of Cost-method Investments [Line Items]    
Cost Method Investments $ 8,001 $ 8,001