v3.26.1
Shareholders' equity (Details 1) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Notes and other explanatory information [abstract]      
Net income R$ 4,311,984 R$ 3,153,881 R$ 2,837,422
(-) Non-distributable tax incentives (440,088) (340,716)  
(-) Constitution of legal reserve (193,492) (140,659)  
Adjusted net profit 3,678,404 2,672,506  
Minimum dividends calculated on the basis of 25% of adjusted profit 919,601 668,127  
Distribution based on adjusted profit for the year:      
 Interest on capital 1,720,000 1,450,000  
 Dividends 1,379,192  
Total dividends and interest on capital proposed and distributed   3,099,192 1,450,000  
Withholding income tax (IRRF) on interest on capital (327,576) (213,574)  
Total dividends and net interest on capital 2,771,616 1,236,426  
Distribution based on retained earnings      
Proposed and distributed interest on capital 490,000  
Interim/additional dividends 410,808 2,050,000  
Total dividends (including additional dividends) and net Interest on capital (i) R$ 3,672,424 R$ 3,286,426