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INCOME TAXES (Tables)
 6 Months Ended
Jun. 30, 2019
Income Tax Disclosure [Abstract]  
Schedule of income tax provisions
Income tax provisions consisted of the following (in thousands):

 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2019
 
2018
 
2019
 
2018
Income (loss) before benefit (provision) for income taxes
(8,623
)
 
(7,920
)
 
(19,524
)
 
62,416

Benefit (provision) for income taxes
3

 
162

 
(112
)
 
(291
)
Effective tax rate
—
%
 
2.0
%
 
(0.6
)%
 
0.5
%