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EARNINGS PER SHARE
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
EARNINGS PER SHARE
The following table sets forth the computation of basic and diluted earnings per share:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2013
 
2012
 
2013
 
2012
Numerator:
 

 
 

 
 

 
 

Net income
$
66,044

 
$
64,765

 
$
205,456

 
$
195,327

Denominator:
 

 
 

 
 

 
 

Basic weighted average shares outstanding
81,644

 
82,918

 
82,260

 
83,233

Effect of dilutive securities - Stock options and awards
1,063

 
998

 
1,054

 
1,093

Diluted weighted average shares outstanding
82,707

 
83,916

 
83,314

 
84,326

Basic earnings per share
$
0.81

 
$
0.78

 
$
2.50

 
$
2.35

Diluted earnings per share
$
0.80

 
$
0.77

 
$
2.47

 
$
2.32


For the three months ended September 30, 2013 and 2012, common shares subject to equity-based awards of 44,026 and 461,093, respectively, were excluded from the computation of diluted earnings per share because the effect of their exercise would be anti-dilutive. For the nine months ended September 30, 2013 and 2012, common shares subject to equity-based awards of 420,584 and 46,678, respectively, were excluded from the computation of diluted earnings per share because the effect of their exercise would be anti-dilutive.