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Comprehensive income
6 Months Ended
Apr. 30, 2011
Comprehensive income [Abstract]  
Comprehensive income
9.   Comprehensive income. Comprehensive income for the three months ended April 30, 2011 and April 30, 2010 is as follows:
                 
    Three Months Ended
    April 30, 2011   April 30, 2010
 
 
               
Net income
  $ 65,242     $ 32,431  
Foreign currency translation adjustments
    21,677       (11,111 )
Amortization of prior service cost and net actuarial losses
    1,421       2,603  
 
Comprehensive income
  $ 88,340     $ 23,923  
 
    Comprehensive income for the six months ended April 30, 2011 and April 30, 2010 is as follows:
                 
    Six Months Ended
    April 30, 2011   April 30, 2010
 
 
               
Net income
  $ 111,139     $ 59,163  
Foreign currency translation adjustments
    14,845       (26,918 )
Remeasurement of supplemental pension liability
          (2,746 )
Settlement loss
          5,014  
Amortization of prior service cost and net actuarial losses
    2,971       3,804  
 
Comprehensive income
  $ 128,955     $ 38,317  
 
    Accumulated other comprehensive loss at April 30, 2011 consisted of pension and postretirement benefit plan adjustments of $99,813 offset by $51,323 of net foreign currency translation adjustment credits. Accumulated other comprehensive loss at April 30, 2010 consisted of pension and postretirement benefit plan adjustments of $90,237 offset by $13,921 of net foreign currency translation adjustment credits.
 
    Changes in accumulated other comprehensive income (loss) for the six months ended April 30, 2011 and 2010 are as follows:
                 
    April 30, 2011   April 30, 2010
 
 
               
Beginning balance
  $ (66,306 )   $ (55,470 )
Current-period change
    17,816       (20,846 )
 
Ending balance
  $ (48,490 )   $ (76,316 )