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
3 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
issuer
Mar. 31, 2024
USD ($)
issuer
Defined Benefit Plan Disclosure [Line Items]    
Number of issuers | issuer 2 2
Available-for-sale, debt securities $ 363 $ 413
Kazakhstan Sustainability Fund JSC    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of trading securities 10.00% 10.00%
Debt securities $ 726,402 $ 727,440
Ministry of Finance of the Republic of Kazakhstan    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of trading securities 10.00% 10.00%
Debt securities $ 2,175,004 $ 2,420,855