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Inventories - Summary of Inventories Explanatory (Detail) - EUR (€)
€ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Summary of Inventory Disclosure [Line Items]    
Raw materials and consumables € 9,616 € 2,248
Work in progress 112,885 68,865
Finished goods 8,172 4,292
Total inventories, gross 130,673 75,405
Total inventories, net € 130,673 € 75,405