XML 87 R67.htm IDEA: XBRL DOCUMENT
v3.20.4

Summary of significant accounting policies - Foreign currency translation (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Algeria | Algerian Dinar (DZD) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 144.26 | 133.22 | 137.24
Year-end Rate | 161.51 | 133.06 | 135.02
Cameroon | CFA Franc BEAC (XAF) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 655.96 | 655.96 | 655.96
Year-end Rate | 655.96 | 655.96 | 655.96
Ivory Coast | CFA Franc BCEAO (XOF) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 655.96 | 655.96 | 655.96
Year-end Rate | 655.96 | 655.96 | 655.96
Egypt | Egyptian Pound (EGP) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 18.00 | 18.80 | 21.00
Year-end Rate | 19.26 | 17.96 | 20.46
Ghana | Cedi (Ghana) (GHS) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 6.53 | 5.98 | 5.51
Year-end Rate | 7.17 | 6.38 | 5.55
Kenya | Kenyan Shilling (KES) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 120.49 | 113.01 | 118.63
Year-end Rate | 132.62 | 112.54 | 115.77
Morocco | Moroccan Dirham (MAD) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 10.72 | 10.69 | 11.04
Year-end Rate | 10.79 | 10.61 | 10.89
Nigeria | Naira (NGN) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 431.77 | 402.40 | 424.60
Year-end Rate | 469.67 | 404.90 | 415.46
Rwanda | Rwanda Franc (RWF) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 1,078.01 | 1,005.63 | 1,006.49
Year-end Rate | 1,195.13 | 1,042.62 | 995.64
Senegal | CFA Franc BCEAO (XOF) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 655.96 | 655.96 | 655.96
Year-end Rate | 655.96 | 655.96 | 655.96
South Africa | Rand (ZAR) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 18.76 | 16.15 | 15.60
Year-end Rate | 17.97 | 15.75 | 16.46
Tunisia | Tunisian Dinar (TND) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 3.17 | 3.22 | 3.09
Year-end Rate | 3.26 | 3.12 | 3.35
United Republic Of Tanzania | Tanzanian Shilling (TZS) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 2,630.32 | 2,573.85 | 2,678.57
Year-end Rate | 2,810.22 | 2,558.61 | 2,625.28
Uganda | Uganda Shilling (UGX) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 4,214.64 | 4,115.60 | 4,373.73
Year-end Rate | 4,451.04 | 4,078.89 | 4,226.75
United Arab Emirates | UAE Dirham (AED) |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 4.19 | 4.11 | 4.34
Year-end Rate | 4.50 | 4.12 | 4.20
UNITED STATES | United States of America, Dollars |  |  |
Disclosure Of Summary Of Significant Accounting Policies [Line Items] |  |  |
Average Rate | 1.14 | 1.12 | 1.18
Year-end Rate | 1.23 | 1.12 | 1.14

X
- Definition The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_AverageForeignExchangeRate
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ClosingForeignExchangeRate
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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: | jmia_DisclosureOfSummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | jmia_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_DZ
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_DZD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CM
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_XAF
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=jmia_IvoryCoastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_XOF
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_EG
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_EGP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_GH
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_GHS
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_KE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_KES
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_MA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_MAD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_NG
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_NGN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_RW
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_RWF
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_SN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_ZA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_ZAR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_TN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_TND
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_TZ
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_TZS
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_UG
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_UGX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_AE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_AED
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |