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Loan commitments and financial guarantees contracts (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of loans commitments and financial guarantees contracts [Line Items] |  |
Loan commitments and financial guarantee contracts | $ 603,759 | $ 564,898
Documentary letters of credit |  |
Disclosure of loans commitments and financial guarantees contracts [Line Items] |  |
Loan commitments and financial guarantee contracts | 214,230 | 216,782
Stand-by letters of credit and guarantees - commercial risk |  |
Disclosure of loans commitments and financial guarantees contracts [Line Items] |  |
Loan commitments and financial guarantee contracts | 268,196 | 210,497
Credit commitments |  |
Disclosure of loans commitments and financial guarantees contracts [Line Items] |  |
Loan commitments and financial guarantee contracts | $ 121,333 | $ 137,619

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