v3.26.1
Intangible assets (Details 4) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]      
General expenses R$ 25,815,313 R$ 20,389,889 R$ 19,286,394
Public Private Partnership [Member]      
IfrsStatementLineItems [Line Items]      
General supplies 21,073 14,858  
Outsourced services 44,466 31,351  
General expenses 5,823 4,106  
Amortization 169,659 127,373  
Financial expenses 499,969 353,860  
Total R$ 740,990 R$ 531,548