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EARNINGS PER SHARE (Tables)
 6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Schedule of computation of basic and diluted earnings per share
The following table sets forth the computation of basic and diluted earnings per share:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Numerator:
 

 
 

 
 

 
 

Net income
$
70,898

 
$
77,332

 
$
139,252

 
$
133,785

Denominator:
 

 
 

 
 

 
 

Basic weighted average shares outstanding
75,000

 
79,873

 
75,621

 
80,260

Effect of dilutive securities - Stock options and awards
773

 
900

 
795

 
934

Diluted weighted average shares outstanding
75,773

 
80,773

 
76,416

 
81,194

Basic earnings per share
$
0.95

 
$
0.97

 
$
1.84

 
$
1.67

Diluted earnings per share
$
0.94

 
$
0.96

 
$
1.82

 
$
1.65