Quarterly report pursuant to Section 13 or 15(d)

TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of present securities assets at fair value (Details)

v3.24.3
TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of present securities assets at fair value (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 3,601,118 $ 3,688,620
Fair value of equity securities 284,580 216,621
Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 3,601,118 3,688,620
Fair value of equity securities 284,580 216,621
Level 1 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 2,580,690 1,909,950
Fair value of equity securities 134,729 75,550
Level 2 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 1,001,661 1,758,228
Fair value of equity securities 149,851 141,071
Level 3 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 18,767 20,442
Fair value of equity securities 0 0
Non-U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 2,353,084 2,409,126
Fair value of equity securities $ 78,446 $ 27,016
Non-U.S. sovereign debt | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities, weighted average interest rate 12.05% 11.61%
Trading securities $ 2,353,084 $ 2,409,126
Total available-for-sale securities, weighted average interest rate 11.31% 10.48%
Fair value of equity securities $ 78,446 $ 27,016
Non-U.S. sovereign debt | Level 1 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 2,090,214 1,592,380
Fair value of equity securities 56,694 12,378
Non-U.S. sovereign debt | Level 2 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 262,870 816,746
Fair value of equity securities 21,752 14,638
Non-U.S. sovereign debt | Level 3 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 0 0
Fair value of equity securities 0 0
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 1,071,502 1,108,870
Fair value of equity securities $ 184,556 $ 173,568
Corporate debt | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities, weighted average interest rate 13.96% 14.83%
Trading securities $ 1,071,502 $ 1,108,870
Total available-for-sale securities, weighted average interest rate 14.23% 15.53%
Fair value of equity securities $ 184,556 $ 173,568
Corporate debt | Level 1 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 336,376 171,218
Fair value of equity securities 56,457 47,135
Corporate debt | Level 2 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 734,754 937,360
Fair value of equity securities 128,099 126,433
Corporate debt | Level 3 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 372 292
Fair value of equity securities 0 0
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 128,434 $ 126,103
Corporate equity | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities, weighted average interest rate
Trading securities $ 128,434 $ 126,103
Corporate equity | Level 1 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 106,526 102,134
Corporate equity | Level 2 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 3,513 3,819
Corporate equity | Level 3 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 18,395 20,150
U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 41,442 43,173
Fair value of equity securities $ 21,578 $ 16,037
U.S. sovereign debt | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities, weighted average interest rate 3.62% 4.98%
Trading securities $ 41,442 $ 43,173
Total available-for-sale securities, weighted average interest rate 2.68% 3.54%
Fair value of equity securities $ 21,578 $ 16,037
U.S. sovereign debt | Level 1 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 41,442 43,173
Fair value of equity securities 21,578 16,037
U.S. sovereign debt | Level 2 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 0 0
Fair value of equity securities 0 0
U.S. sovereign debt | Level 3 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 0 0
Fair value of equity securities 0 0
Exchange traded notes    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 6,656 $ 1,348
Exchange traded notes | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities, weighted average interest rate
Trading securities $ 6,656 $ 1,348
Exchange traded notes | Level 1 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 6,132 1,045
Exchange traded notes | Level 2 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 524 303
Exchange traded notes | Level 3 | Fair value, recurring    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 0 $ 0