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Restructuring Charges (Tables)
3 Months Ended
Apr. 05, 2014
Restructuring Charges [Abstract]  
Schedule of summary of the balances of accrued facility lease obligation reserve and severance and the changes in the accruals
 
   
Reduction in 
Force 
Activities
   
Facility Lease
Obligation
   
Total
 
Balance at January 4, 2014
  $ 2,550     $ 928     $ 3,478  
Charges
                 
Assumption changes
    (29 )     2       (27 )
Payments
    (500 )     (103 )     (603 )
Accretion of liability
          8       8  
Balance at April 5, 2014
  $ 2,021     $ 835     $ 2,856