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)

v3.25.0.1
TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of trading and available-for-sale securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 3,415,517 $ 3,688,620
Fair value of equity securities 418,614 216,621
Non-U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 2,420,650 2,409,126
Fair value of equity securities 217,102 27,016
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 793,240 1,108,870
Fair value of equity securities 180,272 173,568
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 118,823 126,103
U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 73,363 43,173
Fair value of equity securities 21,240 16,037
Exchange traded notes    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 9,441 $ 1,348