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Pension and Other Postretirement Benefit Plans (Tables)
 6 Months Ended
Dec. 27, 2013
Pension and Other Postretirement Benefit Plans [Abstract]  
Components of Net Periodic Benefit Cost
Components of net periodic benefit cost for the defined benefit pension plans and the other postretirement benefit plan are as follows (in thousands):

 
 
Three Months Ended
  
Six Months Ended
 
 
 
Dec. 27,
  
Dec. 28,
  
Dec. 27,
  
Dec. 28,
 
 
 
2013
  
2012
  
2013
  
2012
 
 
 
  
  
  
 
Pension Benefits:
 
  
  
  
 
Service cost
 
$
135
  
$
49
  
$
267
  
$
93
 
Interest cost
  
1,356
   
1,311
   
2,711
   
2,619
 
Expected return on plan assets
  
(1,648
)
  
(1,580
)
  
(3,294
)
  
(3,151
)
Amortization of transition obligation
  
19
   
(11
)
  
38
   
(22
)
Amortization of net loss
  
714
   
846
   
1,427
   
1,691
 
Net periodic benefit cost
 
$
576
  
$
615
  
$
1,149
  
$
1,230
 
 
                
Postretirement Benefits:
                
Service cost
 
$
9
  
$
9
  
$
19
  
$
17
 
Interest cost
  
164
   
191
   
329
   
383
 
Amortization of net actuarial loss
  
151
   
197
   
301
   
395
 
Net periodic benefit cost
 
$
324
  
$
397
  
$
649
  
$
795