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EARNINGS PER SHARE (Tables)
 12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following is a calculation of basic and diluted earnings per share and weighted-average shares outstanding (in thousands, except per share amounts):
 
2017
 
2016
 
2015
Income (loss) from continuing operations—basic and diluted
$
15,978

 
$
(5,398
)
 
$
(10,968
)
 
 
 
 
 
 
Weighted-average shares outstanding—basic
47,908

 
48,319

 
51,402

Add shares issuable from stock-based awards
322

 
—

 
 
Weighted-average shares outstanding—diluted
48,230

 
48,319

 
51,402

 
 
 
 
 
 
Basic earnings (loss) per share
$
0.33

 
$
(0.11
)
 
$
(0.21
)
Diluted earnings (loss) per share
$
0.33

 
$
(0.11
)
 
$
(0.21
)