Quarterly report pursuant to Section 13 or 15(d)

TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Narrative (Details)

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TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Narrative (Details)
$ in Thousands
6 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
issuer
Mar. 31, 2022
USD ($)
issuer
Defined Benefit Plan Disclosure [Line Items]    
Number of issuers | issuer 2 2
Kazakhstan Sustainability Fund JSC    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of trading securities 10.00% 10.00%
Debt securities $ 321,902 $ 506,472
Ministry of Finance of the Republic of Kazakhstan    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of trading securities 10.00% 10.00%
Debt securities $ 622,251 $ 357,343