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Earnings Per Share (Table)
12 Months Ended
Sep. 30, 2011
Earnings Per Share Table Abstract 
Earnings per share table
    2011 2010 2009
    (In thousands, except per share data)
            
Basic Earnings Per Share from continuing operations         
 Income from continuing operations $ 198,884 $ 198,273 $ 183,299
 Less: Income from continuing operations allocated         
  to participating securities   2,077   2,029   1,712
 Income from continuing operations available to         
  common shareholders $ 196,807 $ 196,244 $ 181,587
            
 Basic weighted average shares outstanding   90,201   91,852   91,117
 Income from continuing operations per share - Basic $ 2.18 $ 2.14 $ 1.99
            
Basic Earnings Per Share from discontinued operations         
 Income from discontinued operations $ 8,717 $ 7,566 $ 7,679
 Less: Income from discontinued operations allocated to          
  participating securities   91   77   72
 Income from discontinued operations available to         
  common shareholders $ 8,626 $ 7,489 $ 7,607
            
 Basic weighted average shares outstanding   90,201   91,852   91,117
 Income from discontinued operations per share -         
  Basic $ 0.10 $ 0.08 $ 0.09
            
 Net income per share - Basic $ 2.28 $ 2.22 $ 2.08
            
Diluted Earnings Per Share from continuing operations         
 Income from continuing operations available to         
  common shareholders $ 196,807 $ 196,244 $ 181,587
 Effect of dilutive stock options and other shares   4   5   4
 Income from continuing operations available to         
  common shareholders $ 196,811 $ 196,249 $ 181,591
            
 Basic weighted average shares outstanding   90,201   91,852   91,117
 Additional dilutive stock options and other shares   451   570   503
 Diluted weighted average shares outstanding   90,652   92,422   91,620
 Income from continuing operations per share -         
  Diluted $ 2.17 $ 2.12 $ 1.98
            
Diluted Earnings Per Share from discontinued operations         
 Income from discontinued operations available to         
  common shareholders $ 8,626 $ 7,489 $ 7,607
 Effect of dilutive stock options and other shares   -   -   -
 Income from discontinued operations available to         
  common shareholders $ 8,626 $ 7,489 $ 7,607
            
 Basic weighted average shares outstanding   90,201   91,852   91,117
 Additional dilutive stock options and other shares   451   570   503
 Diluted weighted average shares outstanding   90,652   92,422   91,620
 Income from discontinued operations per share -         
  Diluted $ 0.10 $ 0.08 $ 0.09
            
 Net income per share - Diluted $ 2.27 $ 2.20 $ 2.07