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Right-of-use assets and leases payable - Summary of Information About Right of Use Assets (Detail) (Parenthetical) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
 [2]
Disclosure of quantitative information about right-of-use assets [line items]    
Transfer to property, plant and equipment R$ (5,311)  
Right-of-use assets [member]    
Disclosure of quantitative information about right-of-use assets [line items]    
Transfer to property, plant and equipment 5,311 [1] R$ 11,935
Right-of-use assets [member] | Port Areas [Member]    
Disclosure of quantitative information about right-of-use assets [line items]    
Initial direct costs of right-of-use assets R$ 14,905  
[1] Refers to R$ 5,311 transferred to property, plant and equipment.
[2] Refers to the amortization of right-of-use assets in the subsidiary Tequimar Vila do Conde Logística Portuária S.A. (“Tequimar Vila do Conde”), which is being capitalized as Construction in progress, starting its operation in December 2021.