XML 154 R137.htm IDEA: XBRL DOCUMENT
v3.21.1

Deposits (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Disclosure of deposits from customers [Line Items] |  |
Deposits from customers | $ 3,138,900 | $ 2,888,336
Demand [Member] |  |
Disclosure of deposits from customers [Line Items] |  |
Deposits from customers | 170,660 | 85,786
Up to 1 month [Member] |  |
Disclosure of deposits from customers [Line Items] |  |
Deposits from customers | 1,127,120 | 1,285,949
From 1 month to 3 months [member] |  |
Disclosure of deposits from customers [Line Items] |  |
Deposits from customers | 878,900 | 628,981
3 to 6 months |  |
Disclosure of deposits from customers [Line Items] |  |
Deposits from customers | 544,860 | 593,431
6 months to 1 year |  |
Disclosure of deposits from customers [Line Items] |  |
Deposits from customers | 365,879 | 289,189
From 1 to 2 years |  |
Disclosure of deposits from customers [Line Items] |  |
Deposits from customers | $ 51,481 | $ 5,000

X
- Definition Amount represent the deposits excluding interest payable. + References No definition available. + Details
Name: | blx_DemandAndTimeDepositsExcludingInterestPayable
Namespace Prefix: | blx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | blx_DisclosureOfDepositsFromCustomersLineItems
Namespace Prefix: | blx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_MaturityAxis=us-gaap_MaturityOnDemandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=blx_UpToOneMonthMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |