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EARNINGS PER SHARE (Tables)
 6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Reconciliation of basic and diluted earnings per share computations
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,
 
2015
 
2014
 
2015
 
2014
Numerator for basic and diluted earnings per share:
 

 
 

 
 
 
 
Net income
$
10,395

 
$
28,672

 
$
3,306

 
$
37,632

 
 
 
 
 
 
 
 
Denominator:
 

 
 

 
 
 
 
Basic shares outstanding
58,590

 
60,665

 
58,732

 
60,695

Dilutive effect of equity-based compensation awards
120

 
113

 
100

 
127

Dilutive shares outstanding
58,710

 
60,778

 
58,832

 
60,822

 
 
 
 
 
 
 
 
Basic earnings per share:
$
0.18

 
$
0.47

 
$
0.06

 
$
0.62

 
 

 
 

 
 

 
 

Diluted earnings per share:
$
0.18

 
$
0.47

 
$
0.06

 
$
0.62