Summary of significant accounting policies - Consolidation (Details) - subsidiary	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Summary of significant accounting policies
Number of subsidiaries consolidated	67	67	66

Represents the number of subsidiaries consolidated.

No definition available.

Name:	jmia_NumberOfSubsidiariesConsolidated
Namespace Prefix:	jmia_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration