Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS - Narrative (Details)

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FAIR VALUE OF FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Class of Warrant or Right [Line Items]    
Warrant liabilities $ 7,999 $ 0
Private Placement    
Class of Warrant or Right [Line Items]    
Warrant liabilities $ 8,000