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EARNINGS (LOSS) PER SHARE (Tables)
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Reconciliation of basic and diluted earnings per share computations
The following are computations of basic and diluted earnings (loss) per share (in thousands except for per share amounts):
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2017
 
2016
 
2017
 
2016
Numerator for basic and diluted earnings (loss) per share:
 

 
 

 
 
 
 
Net income (loss)
$
12,058

 
$
(10,255
)
 
$
16,545

 
$
(27,160
)
 
 
 
 
 
 
 
 
Denominator:
 

 
 

 
 
 
 
Basic shares outstanding
57,033

 
57,487

 
57,149

 
57,575

Dilutive effect of equity-based compensation awards
162

 
—

 
131

 
—

Dilutive shares outstanding
57,195

 
57,487

 
57,280

 
57,575

 
 
 
 
 
 
 
 
Basic earnings (loss) per share:
$
0.21

 
$
(0.18
)
 
$
0.29

 
$
(0.47
)
 
 

 
 

 
 

 
 

Diluted earnings (loss) per share:
$
0.21

 
$
(0.18
)
 
$
0.29

 
$
(0.47
)