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Business segment information (Details 2) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
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Reconciliation of total assets: |  |  |  |  |  |  |
Interest-earning assets - business segment | $ 7,908,977 blx_InterestEarningAssets | [1],[2],[3] | $ 7,468,136 blx_InterestEarningAssets | [1],[2],[3] | $ 6,743,769 blx_InterestEarningAssets | [1],[2],[3] |
Allowance for loan losses | (79,675)us-gaap_LoansAndLeasesReceivableAllowance |  | (72,751)us-gaap_LoansAndLeasesReceivableAllowance |  | (72,976)us-gaap_LoansAndLeasesReceivableAllowance |  | (88,547)us-gaap_LoansAndLeasesReceivableAllowance
Customers' liabilities under acceptances | 114,018 us-gaap_DueFromCustomerAcceptances |  | 1,128 us-gaap_DueFromCustomerAcceptances |  | 1,157 us-gaap_DueFromCustomerAcceptances |  |
Accrued interest receivable | 47,938 us-gaap_InterestReceivable |  | 40,727 us-gaap_InterestReceivable |  | 37,819 us-gaap_InterestReceivable |  |
Equipment and leasehold improvements, net | 8,129 us-gaap_PropertyPlantAndEquipmentNet |  | 10,466 us-gaap_PropertyPlantAndEquipmentNet |  | 12,808 us-gaap_PropertyPlantAndEquipmentNet |  |
Derivative financial instruments used for hedging - receivable | 12,324 us-gaap_DerivativeInstrumentsAndHedges | [4] | 15,217 us-gaap_DerivativeInstrumentsAndHedges | [4] | 19,239 us-gaap_DerivativeInstrumentsAndHedges |  |
Other assets | 13,561 us-gaap_OtherAssets |  | 8,389 us-gaap_OtherAssets |  | 14,580 us-gaap_OtherAssets |  |
Total assets - consolidated financial statements | $ 8,025,272 us-gaap_Assets |  | $ 7,471,312 us-gaap_Assets |  | $ 6,756,396 us-gaap_Assets |  |
[1] | Includes selected deposits placed, and loans, net of unearned income and deferred loan fees.
[2] | Includes cash and due from banks, interest-bearing deposits with banks, securities available-for-sale and held-to-maturity, trading securities and the balance of investment funds.
[3] | The numbers set out in these tables have been rounded and accordingly may not total exactly.
[4] | The fair value of assets and liabilities is reported within the derivative financial instruments used for hedging - receivable and payable lines in the consolidated balance sheets, respectively.

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