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Inventories - Summary of Changes in the Provision for Slow Moving and Obsolete Raw Materials and Finished Products (Detail) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Classes of current inventories [abstract]    
Beginning balance € 16,406 € 15,568
Additions 480 1,819
Reductions (1,900) (981)
Ending balance € 14,986 € 16,406