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Accounts receivable - Summary of Trade receivables (Detail) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Trade and other current receivables [abstract]
Receivables From Collaboration Agreements	€ 1,250	€ 957
Accounts receivable	€ 1,250	€ 957	[1]
[1] See Note 2 for details regarding the change in presentation of Other financial assets

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- Definition

The amount of current trade receivables. [Refer: Trade receivables]

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- Definition

Receivables from collaboration agreements.

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No definition available.

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