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EARNINGS PER SHARE
 6 Months Ended
Jun. 30, 2014
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
EARNINGS PER SHARE     
The following are computations of basic and diluted earnings per share (in thousands except for per share amounts):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Numerator for basic and diluted earnings per share:
 

 
 

 
 
 
 
Net income
$
28,672

 
$
22,902

 
$
37,632

 
$
33,404

 
 
 
 
 
 
 
 
Denominator:
 

 
 

 
 
 
 
Basic shares outstanding
60,665

 
60,550

 
60,695

 
60,507

Dilutive effect of equity-based compensation awards
113

 
137

 
127

 
151

Dilutive shares outstanding
60,778

 
60,687

 
60,822

 
60,658

 
 
 
 
 
 
 
 
Basic earnings per share:
$
0.47

 
$
0.38

 
$
0.62

 
$
0.55

 
 

 
 

 
 

 
 

Diluted earnings per share:
$
0.47

 
$
0.38

 
$
0.62

 
$
0.55


For the three and six months ended June 30, 2014, the dilutive effect of all then outstanding options, restricted stock and performance awards is included in the EPS calculations above except for 228,000 of outstanding performance stock awards for which the performance criteria were not attained at that time and 5,270 restricted stock awards which were antidilutive at June 30, 2014. For the three and six months ended June 30, 2013, the EPS calculations above include the dilutive effects of all then outstanding options, restricted stock, and performance awards except for 171,000 of outstanding performance stock awards for which the performance criteria were not attained at that time.