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Income (Loss) Per Share Information (Tables)
9 Months Ended
Jul. 31, 2011
Income (Loss) Per Share Information (Tables) [Abstract]  
Information pertaining to the calculation of (loss) income per share, common stock equivalents, weighted average number of anti-dilutive option and shares issued
Information pertaining to the calculation of income (loss) per share, common stock equivalents, weighted average number of anti-dilutive option and shares issued for the nine-month and three-month periods ended July 31, 2011 and 2010 is as follows (amounts in thousands):
                                 
    Nine months ended July 31,     Three months ended July 31,  
    2011     2010     2011     2010  
Basic weighted-average shares
    167,221       165,465       168,075       165,752  
Common stock equivalents (a)
    1,445             1,263       1,906  
 
                       
Diluted weighted-average shares
    168,666       165,465       169,338       167,658  
 
                       
Common stock equivalents excluded from diluted weighted-average shares due to anti-dilutive effect (a)
          2,121              
 
                       
Weighted average number of anti-dilutive options (b)
    7,118       8,026       6,461       9,243  
 
                       
Shares issued under stock incentive and employee stock purchase plans
    2,226       1,174       1,713       454  
 
                       
     
(a)   Common stock equivalents represent the dilutive effect of outstanding in-the-money stock options. For the nine-month period ended July 31, 2010, there were no incremental shares attributed to outstanding options to purchase common stock because the Company had a net loss in the period and any incremental shares would be anti-dilutive.
 
(b)   Based upon the average closing price of the Company’s common stock on the NYSE for the period.