Share based compensation - SOP 2020 valuation (Details)	12 Months Ended
Dec. 31, 2020 EUR (€) shares	Dec. 31, 2020 EUR (€) $ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Total share-based payment expense recognized \| €	€ 21,600,000
SOP 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Options waiting period	4 years
Number of shares per option \| shares	1
Number of ADS per option \| shares	0.5
Minimum growth to exercise options (as a percent)	10.00%
Total share-based payment expense recognized \| €	€ 1,000,000.0
Options with grant date May 15, 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Fair value of share \| $ / shares		$ 6.48
Exercise price \| $ / shares		$ 3.67
Risk-free interest rate	0.26%
Expected dividend yield	0.00%
Options waiting period	4 years
Expected volatility	50.00%
Granted, fair value \| €	€ 1.60	$ 1.60
Options with grant date December 08, 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Fair value of share \| $ / shares		$ 35.50
Exercise price \| $ / shares		$ 16.48
Risk-free interest rate	0.26%
Expected dividend yield	0.00%
Options waiting period	4 years
Expected volatility	50.00%
Granted, fair value \| €	€ 9.07	$ 9.07

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

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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.

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No definition available.

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- Definition

The exercise price of share options granted.

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- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

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- Definition

The amount of expense from share-based payment transactions with employees.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

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- Definition

The number of the entity's American Depositary Shares to be received for each option granted under the share-based compensation plan. Two of the entity's American Depositary Shares represent one share of Jumia.

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- Definition

The number of shares of the entity's stock to be received for each option granted under the share-based compensation plan.

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- Definition

The minimum annual growth in sales volume necessary in order to exercise options granted under the share-based compensation plan.

+ References

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The waiting period that must expire before options granted under the share-based compensation plan can be exercised.

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