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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Income tax benefit $ 1,956 $ 1,686  
Discrete tax benefit 6,600   $ 6,900
Interest and penalties accrued related to unrecognized tax benefits $ 2,100   $ 2,000