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v2.4.1.9

Loans (Details 9) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 6,686,244 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | [1] | $ 6,148,298 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | [1]
Past Due Balances [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 4,034 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |
Current Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 6,677,409 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |  | 6,145,173 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |
Delinquent Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 4,801 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |  | 3,125 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |
Days (91-120) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 909 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |
Days (121-150) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |
Days (151-180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |
Days (Greater Than 180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 3,125 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |
Corporation [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 3,831,960 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember |  | 3,314,056 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember |
Corporation [Member] | Past Due Balances [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 3,125 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |
Corporation [Member] | Current Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 3,824,034 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |  | 3,310,931 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |
Corporation [Member] | Delinquent Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 4,801 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |  | 3,125 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |
Corporation [Member] | Days (91-120) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |
Corporation [Member] | Days (121-150) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |
Corporation [Member] | Days (151-180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |
Corporation [Member] | Days (Greater Than 180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 3,125 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = us-gaap_CorporationMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |
Banking and Financial Institutions [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 2,370,936 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember |  | 2,259,991 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember |
Banking and Financial Institutions [Member] | Past Due Balances [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |
Banking and Financial Institutions [Member] | Current Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 2,370,936 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |  | 2,259,991 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |
Banking and Financial Institutions [Member] | Delinquent Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |
Banking and Financial Institutions [Member] | Days (91-120) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |
Banking and Financial Institutions [Member] | Days (121-150) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |
Banking and Financial Institutions [Member] | Days (151-180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |
Banking and Financial Institutions [Member] | Days (Greater Than 180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_BankingandFinancialInstitutionsMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |
Middle Market Companies [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 483,348 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember |  | 574,107 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember |
Middle Market Companies [Member] | Past Due Balances [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 909 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |
Middle Market Companies [Member] | Current Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 482,439 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |  | 574,107 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |
Middle Market Companies [Member] | Delinquent Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |
Middle Market Companies [Member] | Days (91-120) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 909 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |
Middle Market Companies [Member] | Days (121-150) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |
Middle Market Companies [Member] | Days (151-180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |
Middle Market Companies [Member] | Days (Greater Than 180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_MiddleMarketCompaniesMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |
Sovereign [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember | [1] | 144 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember | [1]
Sovereign [Member] | Past Due Balances [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_PastDueBalancesMember |
Sovereign [Member] | Current Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |  | 144 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_CurrentLoanMember |
Sovereign [Member] | Delinquent Loan [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = blx_DelinquentLoansMember |
Sovereign [Member] | Days (91-120) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_NinetyOneToHundredAndTwentyDaysMember |
Sovereign [Member] | Days (121-150) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_HundredAndTwentyOneToHundredAndFiftyDaysMember |
Sovereign [Member] | Days (151-180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_HundredAndFiftyOneToHundredAndEightyDaysMember |
Sovereign [Member] | Days (Greater Than 180) [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |  | $ 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = blx_SovereignMember / blx_LoanMaturitiesAxis = blx_GreaterThanHundredAndEightyDaysMember |
[1] | Current ratings as of December 31, 2014 and 2013, respectively.

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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