Commitments and contingencies - Additional Information (Details) - EUR (€) € in Millions	Dec. 31, 2025	Dec. 31, 2024
Disclosure of non-adjusting events after reporting period [line items]
Contractual obligations and commitments	€ 119.2	€ 109.9
Potential milestone payments outstanding	€ 8.0
Sales of generic version, Percentage	1.00%

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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