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Comprehensive Income
6 Months Ended
Apr. 30, 2011
Comprehensive Income [Abstract]  
Comprehensive Income
11. Comprehensive Income
The following table presents the components of comprehensive income for the three and six months ended April 30, 2011 and 2010:
                                 
    Three Months Ended     Six Months Ended  
    April 30,     April 30,  
(in thousands)   2011     2010     2011     2010  
 
                               
Net income
  $ 14,192     $ 8,577     $ 22,581     $ 21,352  
Other comprehensive income (loss):
                               
Unrealized (losses) gains on auction rate securities
    (406 )     (17 )     332       102  
Reclass adjustment for credit losses recognized in earnings
          127             127  
Unrealized (losses) gains on interest rate swap agreements
    (28 )     260       596       212  
Foreign currency translation
    438       484       586       519  
Actuarial gains — adjustments to pension and other post-retirement plans
    16       18       33       36  
 
                       
Income tax expense related to other comprehensive income (loss)
    170       (352 )     (391 )     (405 )
 
                       
Comprehensive income
  $ 14,382     $ 9,097     $ 23,737     $ 21,943