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Property, Plant and Equipment - Summary of Breakdown of Property, Plant and Equipment by Country (Detail) - EUR (€)
€ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment € 84,431 € 83,054 € 85,306
Italy [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 46,610 45,470  
Romania [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 17,952 18,502  
United States of America [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 14,807 13,884  
Brazil [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 3,092 2,753  
Europe [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 957 1,253  
China [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 695 810  
Other countries [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment € 318 € 382