Other Income and Other Expense - Additional information (Detail) - EUR (€) € in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Other Income And Expenses [Abstract]
VAT relief	€ 1,169	€ 1,475	€ 1,573
Reimbursements	935	2,875	1,289
Lessor revenues	648
Other expense	€ 260	€ 457	€ 1,678

The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'function of expense' form for its analysis of expenses.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Balance Type:	debit
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