Operating Expense - Additional Information (Details) € in Thousands	12 Months Ended
Dec. 31, 2023 EUR (€) employee	Dec. 31, 2022 EUR (€) employee	Dec. 31, 2021 EUR (€) employee
Disclosure Of Operating Expense [Line Items]
Average number of employees \| employee	154	133	122
Share-based compensation annual expense	€ 578	€ 245	€ 470
Profit sharing granted to employees	0	0	628
Research and development expense	€ 46,503	€ 35,818	€ 35,166

Adjustments For Profit Sharing Granted To Employees

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with operating expenses.

+ References

No definition available.

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- Definition

The amount of share-based compensation annual expense.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of expenditure directly attributable to research or development activities, recognised in profit or loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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