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LITIGATION (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2018
Dec. 31, 2019
Dec. 31, 2020
Jun. 30, 2020
Dec. 31, 2016
Loss Contingencies [Line Items]          
Loss Contingency Accrual   $ 0 $ 9,327    
Accrual for Environmental Loss Contingencies, Revision in Estimates   1,050      
Accrual for Environmental Loss Contingencies     $ 11,500    
Legal Appeal Bond       $ 6,000  
Judicial Ruling [Member]          
Loss Contingencies [Line Items]          
Loss Contingency Accrual         $ 1,620
Accrual for Environmental Loss Contingencies, Revision in Estimates $ 5,450        
Unfavorable Regulatory Action [Member]          
Loss Contingencies [Line Items]          
Loss Contingency Accrual   $ 5,450