Quarterly report pursuant to Section 13 or 15(d)

TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of valuation techniques and significant level 3 inputs used in the valuation (Details)

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TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of valuation techniques and significant level 3 inputs used in the valuation (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 31, 2021
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value $ 1,765 $ 19,069
Non-U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value $ 949 0
Fair value input 13.80%  
Estimated number of years 1 year  
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value $ 447 301
Fair value input 18.50%  
Estimated number of years 9 years  
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value $ 369 360
Fair value input 16.50%  
Estimated number of years 9 years  
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value $ 0 $ 18,408
Fair value input 10.60%  
Estimated number of years 9 years