Quarterly report pursuant to Section 13 or 15(d)

BROKERAGE AND OTHER RECEIVABLES NET - Narrative (Details)

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BROKERAGE AND OTHER RECEIVABLES NET - Narrative (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Mar. 31, 2021
Receivables [Abstract]    
Amounts due from a single related party customer $ 156,141 $ 8,948
Due from related party customer (in percent) 52.00% 14.00%
Allowance for brokerage receivables   $ 2,036