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Accumulated Other Comprehensive Income (Loss) (Tables)
 3 Months Ended
Mar. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Abstract]  
Summary of components of other comprehensive income
The cumulative balance of each component of other comprehensive income (loss) and the income tax effects allocated to each component are as follows:

 
  
 
Pension and other post-retirement actuarial items
  
Currency translation adjustment
  
Unrealized gain (loss) on available-for-sale securities
  
Total
 
Balance at January 1, 2013
 
$
(178,956
)
 
$
167,461
  
$
1,273
  
$
(10,222
)
Other comprehensive income before reclassifications
  
-
   
(25,121
)
  
711
  
$
(24,410
)
Tax effect
  
-
   
-
   
(249
)
 
$
(249
)
Other comprehensive income before reclassifications, net of tax
  
-
   
(25,121
)
  
462
  
$
(24,659
)
Amounts reclassified out of AOCI
  
4,833
   
-
   
(50
)
 
$
4,783
 
Tax effect
  
(1,602
)
  
-
   
18
  
$
(1,584
)
Amounts reclassified out of AOCI, net of tax
  
3,231
   
-
   
(32
)
 
$
3,199
 
Net comprehensive income
 
$
3,231
  
$
(25,121
)
 
$
430
  
$
(21,460
)
Balance at March 30, 2013
 
$
(175,725
)
 
$
142,340
  
$
1,703
  
$
(31,682
)