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Summary of Significant Accounting Policies (Details 5) (USD $)
 12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Roll forward of the accounts receivable allowance      
Balance at beginning of period $ 9,459,000 $ 6,548,000  
Additions charged to revenues 5,644,000 6,808,000  
Amounts written off (7,891,000) (3,897,000)  
Balance at end of period 7,210,000 9,459,000 6,548,000
Foreign Currency Translation      
Transaction gains and losses recorded in income (loss) before (provision) benefit for income taxes (200,000) (200,000) (400,000)
NeuCo, Inc.
      
Roll forward of the accounts receivable allowance      
Change related to NeuCo $ (2,000) $ 0