XML 102 R84.htm IDEA: XBRL DOCUMENT v3.8.0.1

Financial instruments (Details 20) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest income on credit impairment [Member]
Disclosure of financial instruments [Line Items]
Interest revenue calculated on the net carrying amount(net of credit allowance)	$ 1,170	$ 1,808	$ 91

X

- Definition

The amount of income arising from interest on net carrying amount.

+ References

No definition available.

+ Details

Name:	blx_InterestRevenuenetCarryingAmount
Namespace Prefix:	blx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_ImpairmentOfFinancialAssetsAxis=blx_InterestIncomeOnCreditImpairmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: