Cash and cash equivalents - Disclosure of composition of cash and cash equivalents (Details) - EUR (€) € in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Cash and cash equivalents [abstract]
Cash equivalents	€ 69,711	€ 87,265
Cash	33,865	56,956
Cash and cash equivalents	€ 103,576	€ 144,221	€ 241,608	€ 251,942

The amount of cash on hand and demand deposits. [Refer: Cash on hand]

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- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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- References

No definition available.

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The amount of short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value.

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