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EARNINGS PER SHARE (Tables)
 3 Months Ended
Mar. 31, 2014
EARNINGS PER SHARE [Abstract]  
Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share of common stock as follows:

 
 
Three Months Ended
March 31, 
 
 
2014 
 
2013 
Numerator for common earnings per share:
 
  
 
Net income
 
$
17,364
  
$
12,680
 
Numerator for basic and diluted earnings per share
 
$
17,364
  
$
12,680
 
 
        
Denominator for basic earnings per share:
        
Weighted average common shares outstanding
  
46,797
   
44,812
 
Effect of dilutive securities:
        
Stock options
  
2,410
   
2,834
 
Denominator for diluted earnings per share
  
49,207
   
47,646
 
 
        
Net income per share:
        
Basic
 
$
0.37
  
$
0.28
 
Diluted
 
$
0.35
  
$
0.27