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EARNINGS PER SHARE
3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
EARNINGS PER SHARE

Basic earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, unvested restricted stock and unvested RSUs. The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method.
The following table sets forth the computation of basic and diluted earnings per share of common stock as follows:

 
Three Months Ended 
 March 31,
 
2015
 
2014
Numerator for common earnings per share:
 
 
 
Net income
$
14,714

 
$
17,364

Numerator for basic and diluted earnings per share
$
14,714

 
$
17,364

 
 
 
 
Denominator for basic earnings per share:
 

 
 

Weighted average common shares outstanding
47,886

 
46,797

Effect of dilutive securities:
 
 
 
Stock options, RSUs and performance-based awards
3,114

 
2,410

Denominator for diluted earnings per share
51,000

 
49,207

 
 
 
 
Net income per share:
 

 
 

Basic
$
0.31

 
$
0.37

Diluted
$
0.29

 
$
0.35


During the three months ended March 31, 2015 and 2014, a total of 121 and 1,271 shares underlying equity-based awards, respectively, were outstanding but were not included in the computation of diluted earnings per share because the effect was anti-dilutive.