Quarterly report pursuant to Section 13 or 15(d)

TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of trading and available-for-sale securities (Details)

v3.23.1
TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of trading and available-for-sale securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 947,833 $ 587,546
Fair value of equity securities 1 1
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 513,671 301,898
Non-U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 395,667 239,630
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 22,149 39,280
Exchange traded notes    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 9,386 2,077
U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 6,960 4,661
Equity securities    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value of equity securities $ 1 $ 1