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Earnings Per Common Share (Tables)
 9 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share
The computation of basic and diluted earnings per share for the three and nine months ended June 30, 2013 and 2012 is as follows:
 
 
Three Months Ended
 
Nine Months Ended
(In thousands, except per share amounts)
Net
Income
 
Shares
 
Per Share
Amount
 
Net Income
 
Shares
 
Per Share
Amount
June 30, 2013
 
 
 
 
 
 
 
 
 
 
 
Basic earnings per share
$
89,981

 
65,062
 
$
1.38

 
$
248,331

 
65,441

 
$
3.79

Effect of dilutive securities:
 
 
 
 
 
 
 
 
 
 
 
Stock options
—

 
304
 
$
—

 
—

 
367

 
$
(0.02
)
Restricted stock
—

 
492
 
$
(0.01
)
 
—

 
372

 
$
(0.02
)
Diluted earnings per share
$
89,981

 
65,858
 
$
1.37

 
$
248,331

 
66,180

 
$
3.75

June 30, 2012
 
 
 
 
 
 
 
 
 
 
 
Basic earnings per share
$
51,711

 
65,362
 
$
0.79

 
$
176,645

 
65,221

 
$
2.71

Effect of dilutive securities:
 
 
 
 
 
 
 
 
 
 
 
Stock options
—

 
191
 
$
—

 
—

 
281

 
$
(0.01
)
Restricted stock
—

 
270
 
$
—

 
—

 
213

 
$
(0.01
)
Diluted earnings per share
$
51,711

 
65,823
 
$
0.79

 
$
176,645

 
65,715

 
$
2.69