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Accumulated Other Comprehensive Loss and Total Comprehensive Income (Tables)
 9 Months Ended
Jul. 31, 2012
Equity [Abstract]  
Components of total comprehensive income (loss)
The table below provides, for the periods indicated, the components of total comprehensive income (amounts in thousands):
 
Nine Months Ended July 31,
 
Three Months Ended July 31,
 
2012
 
2011
 
2012
 
2011
Net income as reported
$
75,729

 
$
24,752

 
$
61,643

 
$
42,108

Changes in pension liability
293

 
520

 
201

 
173

Change in fair value of available-for-sale securities
414

 
(189
)
 
258

 
(194
)
Unrealized loss on derivative held by equity investee
(942
)
 

 
(214
)
 


Total comprehensive income
$
75,494

 
$
25,083

 
$
61,888

 
$
42,087