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Earnings Per Common Share (Tables)
 3 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share
The computation of basic and diluted earnings per share for the three months ended December 31, 2015 and 2014 is as follows:
 
 
Three Months Ended
(In thousands, except per share amounts)
Net
Income
 
Shares
 
Per Share
Amount
December 31, 2015
 
 
 
 
 
Basic earnings per share
$
39,081

 
64,765

 
$
0.60

Effect of dilutive securities:
 
 
 
 
 
Stock options
—

 
—

 
—

Restricted stock and performance units
—

 
156

 
—

Diluted earnings per share
$
39,081

 
64,921

 
$
0.60

December 31, 2014
 
 
 
 
 
Basic earnings per share
$
46,218

 
64,405

 
0.72

Effect of dilutive securities:
 
 
 
 
 
Stock options
—

 
99

 
—

Restricted stock and performance units
—

 
511

 
(0.01
)
Diluted earnings per share
$
46,218

 
65,015

 
$
0.71