Fair value of financial instruments - Carrying value and an estimated fair value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Fair value of financial instruments [Line Items]
Cash and deposits on banks	$ 1,253,052	$ 863,812	$ 1,178,170
Securities at amortized cost	637,422	165,564
Loans at amortized cost, net	5,713,022	4,896,647
Customers' liabilities under acceptances	201,515	74,366
Investment property	0	3,214	3,494
Deposits	3,037,457	3,140,875
Securities sold under repurchase agreements	427,497	10,663
Borrowings and debt, net (3)	3,321,911	1,985,070	$ 3,138,310	$ 3,518,446
Acceptances outstanding	201,515	74,366
Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of Fair value of financial instruments [Line Items]
Cash and deposits on banks	1,253,052	863,812
Securities at amortized cost	637,422	165,564
Loans at amortized cost, net	5,707,709	4,891,698
Customers' liabilities under acceptances	201,515	74,366
Investment property	0	3,214
Deposits	3,037,457	3,140,875
Securities sold under repurchase agreements	427,497	10,663
Borrowings and debt, net (3)	3,304,178	1,966,271
Acceptances outstanding	201,515	74,366
Fair Value
Disclosure of Fair value of financial instruments [Line Items]
Cash and deposits on banks	1,253,052	863,812
Securities at amortized cost	632,848	168,110
Loans at amortized cost, net	5,806,915	4,972,599
Customers' liabilities under acceptances	201,515	74,366
Investment property	0	3,214
Deposits	3,037,457	3,140,875
Securities sold under repurchase agreements	427,497	10,663
Borrowings and debt, net (3)	3,294,135	1,989,719
Acceptances outstanding	201,515	74,366
Level 1 \| Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of Fair value of financial instruments [Line Items]
Cash and deposits on banks	0	0
Securities at amortized cost	0	0
Loans at amortized cost, net	0	0
Customers' liabilities under acceptances	0	0
Investment property	0	0
Deposits	0	0
Securities sold under repurchase agreements	0	0
Borrowings and debt, net (3)	0	0
Acceptances outstanding	0	0
Level 2 \| Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of Fair value of financial instruments [Line Items]
Cash and deposits on banks	1,253,052	863,812
Securities at amortized cost	628,284	157,698
Loans at amortized cost, net	5,806,915	4,972,599
Customers' liabilities under acceptances	201,515	74,366
Investment property	0	0
Deposits	3,037,457	3,140,875
Securities sold under repurchase agreements	427,497	10,663
Borrowings and debt, net (3)	3,294,135	1,989,719
Acceptances outstanding	201,515	74,366
Level 3 \| Not measured at fair value in statement of financial position but for which fair value is disclosed
Disclosure of Fair value of financial instruments [Line Items]
Cash and deposits on banks	0	0
Securities at amortized cost	4,564	10,412
Loans at amortized cost, net	0	0
Customers' liabilities under acceptances	0	0
Investment property	0	3,214
Deposits	0	0
Securities sold under repurchase agreements	0	0
Borrowings and debt, net (3)	0	0
Acceptances outstanding	$ 0	$ 0

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- Definition

Amounts receivable from customers on short-term negotiable time drafts drawn on and accepted by the institution (also known as banker's acceptance transactions) that are outstanding on the reporting date.

+ References

No definition available.

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- Definition

The amount of outstanding funds that the entity is obligated to repay.

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The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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The amount of deposit liabilities from customers held by the entity.

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The amount of financial assets at amortised cost. The amortised cost is the amount at which financial assets are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount, and adjusted for any impairment. [Refer: Financial assets]

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The amount of property (land or a building - or part of a building - or both) held (by the owner or by the lessee as a right-of-use asset) to earn rentals or for capital appreciation or both, rather than for: (a) use in the production or supply of goods or services or for administrative purposes; or (b) sale in the ordinary course of business.

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The amount of loans and advances the entity has made to customers.

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The amount of non-derivative financial assets with fixed or determinable payments that are not quoted in an active market, other than: (a) those that the entity intends to sell immediately or in the near term, which shall be classified as held for trading, and those that the entity, upon initial recognition, designates as at fair value through profit or loss; (b) those that the entity, upon initial recognition, designates as available for sale; or (c) those for which the holder may not recover substantially all of its initial investment, other than because of credit deterioration, which shall be classified as available for sale. An interest acquired in a pool of assets that are not loans or receivables (for example, an interest in a mutual fund or a similar fund) is not a loan or receivable. [Refer: Derivative financial assets]

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