Quarterly report pursuant to Section 13 or 15(d)

CASH AND CASH EQUIVALENTS - Schedule of collateralized securities received under reverse repurchase agreements (Details)

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CASH AND CASH EQUIVALENTS - Schedule of collateralized securities received under reverse repurchase agreements (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Remaining contractual maturity: up to 30 days $ 13,826 $ 11,917
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 13,826 $ 11,917
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 14.62% 0.50%
Remaining contractual maturity: up to 30 days $ 242 $ 1,562
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 242 $ 1,562
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 0.51% 13.09%
Remaining contractual maturity: up to 30 days $ 5,811 $ 110
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 5,811 $ 110
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 0.00% 10.15%
Remaining contractual maturity: up to 30 days $ 0 $ 8,460
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 0 $ 8,460
US sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 0.35% 0.88%
Remaining contractual maturity: up to 30 days $ 7,773 $ 1,785
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 7,773 $ 1,785