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SUBSEQUENT EVENTS (Details)
$ in Millions
3 Months Ended 6 Months Ended
Feb. 15, 2021
USD ($)
Sep. 14, 2020
Mar. 31, 2021
Dec. 31, 2020
Business Combination, Consideration Transferred [Abstract]        
Stock Conversion Ratio   1 1 1
Subsequent Event [Member]        
Business Combination, Consideration Transferred [Abstract]        
Stock Conversion Ratio 1      
Subsequent Event [Member] | Maximum [Member]        
Business Combination, Consideration Transferred [Abstract]        
Cash payment in lieu of vested options $ 10