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Net Income Per Common Share (Tables)
6 Months Ended
Jun. 30, 2013
Earnings Per Share, Basic and Diluted [Abstract]  
Schedule of Calculation of Numerator and Denominator in Net Income Per Common Share [Table Text Block]
The following table presents the calculation of the numerator and denominator for both basic and diluted net income per common share:
 
Three Months Ended
 
June 30,
 
2013
 
2012
 
 
Income
 
Weighted-Average Common Shares
 
 
Income
 
Weighted-
Average
Common
Shares
Net income
$
31,534

 
 
 
$
18,847

 
 
Preferred stock dividends
(2,092
)
 
 
 

 
 
Net income to common shareholders
$
29,442

 
54,973,561

 
$
18,847

 
54,353,811

Effect of dilutive stock options

 

 

 

Diluted
$
29,442

 
54,973,561

 
$
18,847

 
54,353,811

Net income per common share:
 
 
 
 
 
 
 
Basic
 

 
$
0.54

 
 

 
$
0.35

Diluted (1)
 

 
$
0.54

 
 

 
$
0.35


(1)
For the three months ended June 30, 2012, the calculation of diluted net income per common share excludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.


 
Six Months Ended
 
June 30,
 
2013
 
2012
 
 
Income
 
Weighted-Average Common Shares
 
 
Income
 
Weighted-
Average
Common
Shares
Net income
$
51,136

 
 
 
$
35,323

 
 
Preferred stock dividends
(3,313
)
 
 
 

 
 
Net income to common shareholders
$
47,823

 
54,638,651

 
$
35,323

 
51,930,581

Effect of dilutive stock options

 

 

 

Diluted
$
47,823

 
54,638,651

 
$
35,323

 
51,930,581

Net income per common share:
 
 
 
 
 
 
 
Basic
 

 
$
0.88

 
 

 
$
0.68

Diluted (1)
 

 
$
0.88

 
 

 
$
0.68

(1)
For the six months ended June 30, 2012, the calculation of diluted net income per common share excludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.