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INCOME TAXES - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Income tax benefit $ 3,700    
Net operating loss carryback 3,700    
Unrecognized tax benefits 1,313 $ 1,313 $ 1,313
Accrued interest and penalties $ 400 $ 200