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Consolidated Statements Of Income And Earnings Reinvested In The Business (Parenthetical) (USD $)
3 Months Ended 9 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Consolidated Statements Of Income And Earnings Reinvested In The Business        
Dividends Per Share on Common Stock $ 0.355 $ 0.345 $ 1.045 $ 1.015