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 6 Months Ended
Jun. 30, 2022
USD ($)
issuer
Sep. 30, 2021
Mar. 31, 2022
USD ($)
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 $ 312,179   $ 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 $ 620,918   $ 357,343