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Income Tax Benefits / (Expenses) - Summary of Effective Tax Rate (Detail) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of Effective Income Tax Rate [line Items] |  |  |
Loss before tax | € (239,880) | € (72,121) | € (137,260)
Total income tax benefits / (expenses) | € 129 | € (4,331) | € 1,603
Effective tax rate | 0.05% | (6.01%) | 1.17%

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