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Financial risk review - Schedule of Financial Assets Available to Support Future Funding (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financial assets available to support future funding |  |
Pledged as collateral | $ 461,209 | $ 382,221
Available as collateral | 9,802,166 | 8,625,998
Cash and due from banks |  |
Financial assets available to support future funding |  |
Pledged as collateral | 60,384 | 50,650
Available as collateral | 1,987,066 | 1,190,936
Notional of investment securities |  |
Financial assets available to support future funding |  |
Pledged as collateral | 400,825 | 331,571
Available as collateral | 619,533 | 672,042
Loans at amortized cost |  |
Financial assets available to support future funding |  |
Pledged as collateral | 0 | 0
Available as collateral | $ 7,195,567 | $ 6,763,020

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- Definition The amount of availability of bank guaranteed financial assets. + References No definition available. + Details
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