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Retirement Plans (Tables)
3 Months Ended
Apr. 01, 2012
Retirement Plans [Abstract]  
Schedule Of Net Periodic Cost Associated With Defined-Benefit Pension And Other Post-Retirement Benefit Plans
     Pension Benefits     Other Post-retirement Benefits  

Three Months Ended

   April 3, 2011     April 1, 2012     April 3, 2011     April 1, 2012  

Service cost

   $ 64      $ 71      $ 4      $ 3   

Interest cost

     129        131        15        14   

Expected return on plan assets

     (150     (147     (8     (7

Recognized net actuarial loss

     40        66        1        2   

Amortization of prior service (credit) cost

     (11     (11     1        2   
  

 

 

   

 

 

   

 

 

   

 

 

 

Net periodic cost

   $ 72      $ 110      $ 13      $ 14