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Intangible Assets - Summary of Goodwill Recognized (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Intangible Assets [Line Items]
Goodwill	€ 53,697	€ 2,978
CGU Immunotherapies
Disclosure Of Intangible Assets [Line Items]
Goodwill	53,163	2,444
External Product Sales of JPT
Disclosure Of Intangible Assets [Line Items]
Goodwill	€ 534	€ 534

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- 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.

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The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

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