Staff costs (Details) € in Thousands	12 Months Ended
Dec. 31, 2024 EUR (€) employee	Dec. 31, 2023 EUR (€) employee	Dec. 31, 2022 EUR (€) employee
Continued Operations [Line Item]
Wages and salaries \| €	€ (98,863)	€ (100,250)	€ (99,708)
Social security costs \| €	(15,590)	(15,742)	(16,748)
Pension costs \| €	5,669	5,581	5,583
Costs related to subscription right plans \| €	(17,685)	(36,628)	(62,003)
Other personnel costs \| €	(9,136)	(6,682)	(9,670)
Total personnel costs \| €	€ (146,943)	€ (164,883)	€ (193,712)
Number of employees \| employee	704	646	724
Average number of employees \| employee	645	634	695
Members of Executive Committee
Continued Operations [Line Item]
Average number of employees \| employee	4	4	4
Research and development [Member]
Continued Operations [Line Item]
Average number of employees \| employee	408	372	434
Commercial and medical affairs [Member]
Continued Operations [Line Item]
Average number of employees \| employee	26	13	7
Corporate and support [Member]
Continued Operations [Line Item]
Average number of employees \| employee	207	245	250

Staff cost and employee numbers for continued operations

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- Definition

The number employees of our continuing operations.

+ References

No definition available.

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- Definition

The amount of costs associated with warrants granted that are included in other personnel costs.

+ References

No definition available.

+ Details

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- Definition

The average number of personnel employed by the entity during a period.

+ References

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- Definition

The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment.

+ References

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- Definition

The amount of employee expenses that the entity does not separately disclose in the same statement or note.

+ References

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- Definition

The amount of post-employment benefit expense included in profit or loss

+ References

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- Definition

A class of employee benefits expense that represents social security contributions. [Refer: Employee benefits expense]

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- Definition

A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense]

+ References

+ Details

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