v3.26.1
Shareholders' equity (Details Narrative) - BRL (R$)
R$ / shares in Units, R$ in Thousands
 12 Months Ended
Dec. 16, 2025
Feb. 12, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Feb. 28, 2025
IfrsStatementLineItems [Line Items]            
Number of share issued     2,392,125,889 2,420,804,398   5,000,000
Number of shares authorised     4,450,000,000      
Other capital reserves     R$ 23,997    
Accumulated amount of benefits     R$ 3,143,043 2,702,955    
Mandatory dividend percentage     25.00%      
Distribution costs     R$ 2,210,000 1,450,000    
Additional amounts       2,050,000    
Dividends       3,500,000    
Distributed profit     1,720,000      
Expansion reserve     490,000      
Additional dividend     1,790,000      
Additional distributed profit     1,379,192      
Additional expansion reserve     410,808      
Interest on shareholders equity R$ 4,000,000   4,000,000      
Disbursed amount     5,360,083 2,720,095 R$ 2,174,929  
Dividend payables     1,219,319 671,525    
Unpaid return on equity     193,337 R$ 117,613    
Interest on capital     1,390,000      
Interest on capital net     R$ 1,183,813      
Total common shares   67,210,173,000        
Percentage of corresponding rate   2.78%        
Repurchase of treasury shares   33,494,000        
Repurchase of treasury shares   R$ 748,268        
Allocated treasury shares   1,559,000        
Cancellation treasury shares 28,679,000          
Treasury shares     3,458,000 201,000    
Treasury total     R$ 78,539 R$ 3,451    
Dividend And Equity Interest [Member]            
IfrsStatementLineItems [Line Items]            
Dividend payables     1,377,150 671,525    
Interest     1,219,319      
JSCP [Member]            
IfrsStatementLineItems [Line Items]            
Disbursed amount     5,360,083 2,720,095    
Dividend amount     3,649,773 1,841,695    
Controlling and non controlling shareholders     R$ 1,710,310 R$ 878,400    
Controlling and non controlling debenture per share     R$ 2.24 R$ 1.12