Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.2.2
CASH AND CASH EQUIVALENTS - Schedule of collateralized securities received under reverse repurchase agreements (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Up to 30 days $ 974,904 $ 840,082
30-90 days 6,286 142
Total contractual maturity 981,190 840,224
Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Up to 30 days 47,026 19,947
30-90 days 23 0
Total contractual maturity 47,049 19,947
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Up to 30 days 508,658 609,405
30-90 days 6,286 142
Total contractual maturity $ 514,944 $ 609,547
Corporate debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 15.81% 11.88%
Up to 30 days $ 25,608 $ 57
30-90 days 0 0
Total contractual maturity $ 25,608 $ 57
Non-US sovereign debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 1.38% 12.51%
Up to 30 days $ 13,746 $ 9,786
30-90 days 0 0
Total contractual maturity 13,746 9,786
US sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Up to 30 days 1,388 7,396
30-90 days 0 0
Total contractual maturity $ 1,388 $ 7,396
US sovereign debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 13.99% 16.38%
Up to 30 days $ 7,444 $ 9,952
30-90 days 0 0
Total contractual maturity $ 7,444 9,952
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Up to 30 days   388
30-90 days   0
Total contractual maturity   $ 388
Corporate equity | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 12.25% 16.90%
Up to 30 days $ 228 $ 152
30-90 days 23 0
Total contractual maturity $ 251 $ 152