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)

v3.23.1
TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of present securities assets at fair value (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
Quoted Prices in Active Markets for Identical Assets    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 943,508 568,513
Fair value of equity securities 0 0
Significant Other Observable Inputs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 2,561 0
Fair value of equity securities 0 0
Significant Unobservable Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 1,764 19,033
Fair value of equity securities $ 1 $ 1
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted Average Interest Rate 8.80% 9.22%
Trading securities $ 513,671 $ 301,898
Corporate debt | Quoted Prices in Active Markets for Identical Assets    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 512,887 301,538
Corporate debt | Significant Other Observable Inputs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 415 0
Corporate debt | Significant Unobservable Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 369 $ 360
Non-U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted Average Interest Rate 9.35% 8.06%
Trading securities $ 395,667 $ 239,630
Non-U.S. sovereign debt | Quoted Prices in Active Markets for Identical Assets    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 393,124 239,630
Non-U.S. sovereign debt | Significant Other Observable Inputs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 1,593 0
Non-U.S. sovereign debt | Significant Unobservable Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 950 $ 0
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted Average Interest Rate 0.00% 0.00%
Trading securities $ 22,149 $ 39,280
Corporate equity | Quoted Prices in Active Markets for Identical Assets    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 21,151 20,607
Corporate equity | Significant Other Observable Inputs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 553 0
Corporate equity | Significant Unobservable Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 445 $ 18,673
US sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted Average Interest Rate 2.00% 1.68%
Trading securities $ 6,960 $ 4,661
US sovereign debt | Quoted Prices in Active Markets for Identical Assets    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 6,960 4,661
US sovereign debt | Significant Other Observable Inputs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 0 0
US sovereign debt | Significant Unobservable Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 0 $ 0
Exchange traded notes    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted Average Interest Rate 0.00% 0.00%
Trading securities $ 9,386 $ 2,077
Exchange traded notes | Quoted Prices in Active Markets for Identical Assets    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 9,386 2,077
Exchange traded notes | Significant Other Observable Inputs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities 0 0
Exchange traded notes | Significant Unobservable Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Trading securities $ 0 $ 0
Equity securities    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted Average Interest Rate 0.00% 0.00%
Fair value of equity securities $ 1 $ 1
Equity securities | Quoted Prices in Active Markets for Identical Assets    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value of equity securities 0 0
Equity securities | Significant Other Observable Inputs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value of equity securities 0 0
Equity securities | Significant Unobservable Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value of equity securities $ 1 $ 1