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Earnings Per Share (Tables)
3 Months Ended
Jul. 31, 2011
Earnings Per Share Tables [Abstract]  
Earnings Per Share Reconciliation
  Three Months  Nine Months
In thousands except per share amounts 2011  2010  2011  2010
            
Net Income (Loss)$ (8,703) $ (9,518) $ 123,145 $ 151,057
            
Average shares of common stock outstanding for           
basic earnings per share  72,007   71,968   72,010   72,315
Contingently issuable shares under incentive           
compensation plans *  -   -   225   353
Average shares of dilutive stock  72,007   71,968   72,235   72,668
            
Earnings (Loss) Per Share of Common Stock:           
Basic$ (0.12) $ (0.13) $ 1.71 $ 2.09
Diluted$ (0.12) $ (0.13) $ 1.70 $ 2.08

* For the three months ended July 31, 2011 and 2010, the inclusion of 204 and 339 contingently issuable shares, respectively, would have been antidilutive.