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INCOME TAXES - Additional information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Income Taxes    
Income Tax Credits and Adjustments $ 400  
Effective Income Tax Rate Reconciliation, Percent 35.00%  
Discrete Items Income Tax Benefit $ 100 $ 1,100
Income tax benefit 384 483
Income taxes paid $ 0 $ 0
Estimated Rate One [Member]    
Income Taxes    
Effective Income Tax Rate Reconciliation, Percent 25.20%