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Pension Plans (Tables)
3 Months Ended
Jul. 27, 2013
Pension Plans [Abstract]  
Net Periodic Pension Costs
Net periodic pension costs were as follows:

 
 
Quarter Ended
 
(Unaudited, amounts in thousands)
 
7/27/13
  
7/28/12
 
Service cost
 
$
311
  
$
308
 
Interest cost
  
1,206
   
1,331
 
Expected return on plan assets
  
(1,699
)
  
(1,714
)
Net amortization
  
891
   
756
 
Net periodic pension cost
 
$
709
  
$
681