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v2.4.1.9

Loans (Details Textual) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Proceeds from Sale of Loans Receivable | $ 515,600,000 us-gaap_ProceedsFromSaleOfLoansReceivable | $ 89,500,000 us-gaap_ProceedsFromSaleOfLoansReceivable | $ 146,200,000 us-gaap_ProceedsFromSaleOfLoansReceivable
Net gain on sale of loans | $ 2,546,000 us-gaap_GainLossOnSalesOfLoansNet | $ 588,000 us-gaap_GainLossOnSalesOfLoansNet | $ 1,147,000 us-gaap_GainLossOnSalesOfLoansNet
Percentage Of Loan Portfolio At Fixed Interest Rate | 89.00%blx_PercentageOfLoanPortfolioAtFixedInterestRateWithMaturitiesOfLessThan180Days | 92.00%blx_PercentageOfLoanPortfolioAtFixedInterestRateWithMaturitiesOfLessThan180Days |
Class "A" and "B" |  |  |
Percentage Of Credit Transaction With Stockholders | 15.00%blx_PercentageOfCreditTransactionWithStockholders / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 20.00%blx_PercentageOfCreditTransactionWithStockholders / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
Outstanding Loan Portfolio With Class A And Class B Shareholder | 8.00%blx_OutstandingLoanPortfolioWithClassAndClassBShareholder / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 12.00%blx_OutstandingLoanPortfolioWithClassAndClassBShareholder / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
Total Outstanding Shares In Percentage | 3.50%blx_TotalOutstandingSharesInPercentage / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |

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- Definition Outstanding loan portfolio at the Balance sheet date with Class A and Class B shareholders. + References No definition available. + Details
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- Definition Percentage of credit transaction with stockholders at the end of period. + References No definition available. + Details
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- Definition Percentage of loans with fixed interest rates maturing in 180 days or less + References No definition available. + Details
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- Definition The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(h)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.3(a)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 + Details
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- Definition The cash inflow associated with the sale of loans receivables arising from the financing of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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