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EARNINGS (LOSS) PER SHARE (Tables)
 12 Months Ended
Dec. 31, 2018
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):
 
Years Ended December 31,
 
2018
 
2017
 
2016
Numerator for basic and diluted earnings (loss) per share:
 
 
 
 
 
Net income (loss)
$
65,636

 
$
100,739

 
$
(39,873
)
Denominator:
 
 
 
 
 
  Weighted basic shares outstanding
56,148

 
57,072

 
57,532

  Dilutive effect of equity-based compensation awards
192

 
128

 
—

  Weighted dilutive shares outstanding
56,340

 
57,200

 
57,532


 
 
 
 
 
Basic earnings (loss) per share
$
1.17

 
$
1.77

 
$
(0.69
)
Diluted earnings (loss) per share
$
1.16

 
$
1.76

 
$
(0.69
)