v3.26.1
Equity (Details 2) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Equity valuation adjustments, beginning R$ 280,339 R$ 146,362
Actuarial gains (losses) (196,096) 142,327
Equity valuation adjustments, ending 84,243 280,339
Gains/(losses) in financial isntruments   (8,350)
G 1 Plan [Member]    
IfrsStatementLineItems [Line Items]    
Equity valuation adjustments, beginning 242,834 235,708
Actuarial gains (losses) (100,152) 7,126
Equity valuation adjustments, ending 142,682 242,834
Gains/(losses) in financial isntruments  
G 0 Plan [Member]    
IfrsStatementLineItems [Line Items]    
Equity valuation adjustments, beginning 45,855 (89,346)
Actuarial gains (losses) (104,294) 135,201
Equity valuation adjustments, ending (58,439) 45,855
Gains/(losses) in financial isntruments  
Hedge [Member]    
IfrsStatementLineItems [Line Items]    
Equity valuation adjustments, beginning (8,350)
Actuarial gains (losses) 8,350
Equity valuation adjustments, ending (8,350)
Gains/(losses) in financial isntruments   R$ (8,350)