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Financial Risk Management - Schedule of Foreign Currency Sensitivity Analysis (Detail) - US dollars to Euro [member] - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about financial instruments [line items] |  |
Nominal positions (net) | € (735,064) | € (369,091)
Increase in foreign currency exchange rate | 10.00% | 10.00%
Profit/(loss) before tax | € (73,506) | € (36,909)
Equity before tax | € (73,506) | € (36,909)

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