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Earnings Per Share (Anti-dilutive Stock Options Excluded from Computation of Earnings Per Share) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Earnings Per Share        
Options 722 31 239 45
Weighted-average option price $ 34.06 $ 41.53 $ 34.83 $ 35.87