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Inventories - Movements in the Provision for inventory Losses (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Inventories      
Provisions for inventory losses, beginning R$ 7,031 R$ 21,926 R$ 13,078
Addition to provision for adjustment to realizable value     10,028
Addition to provision for obsolescence and other losses 1,680    
Reversal of provision for adjustment to realizable value (4,791) (6,594)  
Reversal of provision for obsolescence and other losses   (8,301) (1,180)
Provisions for inventory losses, ending R$ 3,920 R$ 7,031 R$ 21,926