Notes to the Balance Sheet - Summary of Financial Assets from Collaborations (Details) - Level 3 of fair value hierarchy [member] - EUR (€) € in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financial Assets from Collaborations [Line Items]
Fair value of the financial asset	€ 0	€ 16,730	€ 42,870
Additions	0	0
Cash Receipts	(23,768)	(40,004)
Other Financial Assets	€ 7,038	€ 13,864

The decrease in financial assets resulting from derecognition. [Refer: Financial assets]

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The fair value of financial assets. [Refer: At fair value [member]; Financial assets]

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Financial Assets from Collaborations [Line Items]

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