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INCOME TAXES (Tables)
3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]  
Schedule of income tax (expense) benefit
 
Three Months Ended 
 March 31,
 
2017
 
2016
 
(in thousands, except percentages)
Income tax benefit (expense)
$
1,079

 
$
(4,798
)
Effective tax rate
(16.1
)%
 
41.0
%