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Risk management (Details 5) - BRL (R$)
R$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Cash and cash equivalents and financial investments R$ 6,191,982 R$ 3,265,236
Banco B V [Member]    
IfrsStatementLineItems [Line Items]    
Current accounts and investment funds 329,381 322,241
A A A Bra [Member]    
IfrsStatementLineItems [Line Items]    
Cash and cash equivalents and financial investments 5,859,198 2,940,690
Others [Member]    
IfrsStatementLineItems [Line Items]    
Cash and cash equivalents and financial investments R$ 332,784 R$ 324,546