XML 26 R24.htm IDEA: XBRL DOCUMENT v2.4.0.6
Earnings Per Share (EPS) (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Earnings Per Share [Line Items]      
Common stock outstanding, but were not included in the computation of diluted EPS 131,129 328,482  
Options expiration period     2014
Maximum [Member]
     
Earnings Per Share [Line Items]      
Weighted average price of securities excluded from computation of earnings per share 45.81 54.88  
Minimum [Member]
     
Earnings Per Share [Line Items]      
Weighted average price of securities excluded from computation of earnings per share 32.55 37.54  
Restricted Shares [Member]
     
Earnings Per Share [Line Items]      
Common stock outstanding, but were not included in the computation of diluted EPS 196,000 197,000