Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.0.1
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 $ 238,657 $ 248,946
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 238,657 $ 248,946
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 0.87% 2.76%
Remaining contractual maturity: up to 30 days $ 224,684 $ 51,564
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 224,684 $ 51,564
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 0.57% 1.07%
Remaining contractual maturity: up to 30 days $ 6,192 $ 101,258
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 6,192 $ 101,258
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 6.99% 4.42%
Remaining contractual maturity: up to 30 days $ 8 $ 94,562
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 8 $ 94,562
US sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 0.35% 0.50%
Remaining contractual maturity: up to 30 days $ 7,773 $ 1,562
Remaining contractual maturity: 30 - 90 days 0 0
Total contractual maturity $ 7,773 $ 1,562