Accounts payable - Summary of Accounts Payable (Detail) - EUR (€) € in Thousands	Dec. 31, 2025	Dec. 31, 2024
Trade and other current payables [abstract]
Trade payables	€ 340	€ 10,112
Accrued liabilities	18,492	10,581
Total	€ 18,832	€ 20,693

The current amount of payment due to suppliers for goods and services used in entity's business. [Refer: Current liabilities; Trade payables]

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