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Financial investments (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Financial investments R$ 1,677,873 R$ 2,433,385
Banco B V [Member]    
IfrsStatementLineItems [Line Items]    
Financial investments 289,909 262,465
Banco Itau S A [Member]    
IfrsStatementLineItems [Line Items]    
Financial investments 403,732 366,906
Banco Bradesco S A [Member]    
IfrsStatementLineItems [Line Items]    
Financial investments 578,752 524,791
Banco B T G Pactual S A [Member]    
IfrsStatementLineItems [Line Items]    
Financial investments 404,363 367,361
Bancodobrasilsa One [Member]    
IfrsStatementLineItems [Line Items]    
Financial investments R$ 1,117 R$ 911,862