Quarterly report pursuant to Section 13 or 15(d)

CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Narrative (Details)

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CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
Sep. 30, 2021
USD ($)
CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS    
Equity investment $ 20,000 $ 20,000
Net unrealized loss on equity investment $ 1,900 $ 1,880