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Earnings Per Common Share
3 Months Ended
Mar. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Common Share
EARNINGS PER COMMON SHARE
Basic earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding during the reporting period. Diluted earnings per share gives effect to all dilutive common shares outstanding during the reporting period. The dilutive shares we consider in our diluted earnings per share calculation relate to our outstanding stock options and restricted stock awards.
We determine the dilutive effect of our outstanding stock options using the "treasury stock" method. Under this method, we assume the exercise of all of the outstanding stock options whose exercise price is less than the weighted-average market value of our common stock during the reporting period. This method also assumes that the proceeds from the hypothetical stock option exercises are used to repurchase shares of our common stock at the weighted-average market value of the stock during the reporting period. The net of the assumed stock options exercised and assumed common shares repurchased represents the number of dilutive common shares, which we add to the denominator of the earnings per share calculation.

The components of basic and diluted earnings per share were as follows for the three-month periods ended March 31, 2016 and 2015:
 
Three Months Ended March 31,
(In Thousands Except Share Data)
2016
 
2015
 
Basic
 
Diluted
 
Basic
 
Diluted
Net income
$
22,427

 
$
22,427

 
$
23,679

 
$
23,679

Weighted-average common shares outstanding
25,209,888

 
25,209,888

 
24,990,470

 
24,990,470

Add dilutive effect of restricted stock awards

 
154,742

 

 
114,313

Add dilutive effect of stock options

 
231,807

 

 

Weighted-average common shares
25,209,888

 
25,596,437

 
24,990,470

 
25,104,783

Earnings per common share
$
0.89

 
$
0.88

 
$
0.95

 
$
0.94

Awards excluded from diluted earnings per share calculation(1)

 
180,912

 

 
697,950

(1)
Outstanding awards that are not "in-the-money" are excluded from the diluted earnings per share calculation because the effect of including them would have been anti-dilutive.