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Earnings Per Common Share (Tables)
 6 Months Ended
Mar. 31, 2014
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 six months ended March 31, 2014 and 2013 is as follows:
 
 
Three Months Ended
 
Six Months Ended
(In thousands, except per share amounts)
Net
Income
 
Shares
 
Per Share
Amount
 
Net Income
 
Shares
 
Per Share
Amount
March 31, 2014
 
 
 
 
 
 
 
 
 
 
 
Basic earnings per share
$
73,300

 
64,238
 
$
1.14

 
$
156,697

 
64,175

 
$
2.44

Effect of dilutive securities:
 
 
 
 
 
 
 
 
 
 
 
Stock options
—

 
227
 
$
—

 
—

 
267

 
$
(0.01
)
Restricted stock
—

 
566
 
$
(0.01
)
 
—

 
586

 
$
(0.02
)
Diluted earnings per share
$
73,300

 
65,031
 
$
1.13

 
$
156,697

 
65,028

 
$
2.41

March 31, 2013
 
 
 
 
 
 
 
 
 
 
 
Basic earnings per share
$
85,519

 
65,733
 
$
1.30

 
$
158,350

 
65,631

 
$
2.41

Effect of dilutive securities:
 
 
 
 
 
 
 
 
 
 
 
Stock options
—

 
388
 
$
(0.01
)
 
—

 
399

 
$
(0.01
)
Restricted stock
—

 
468
 
$
(0.01
)
 
—

 
311

 
$
(0.01
)
Diluted earnings per share
$
85,519

 
66,589
 
$
1.28

 
$
158,350

 
66,341

 
$
2.39