v3.26.1
Financial instruments and risk management - Sensitivity analysis – exposure to interest rates – except for derivative financial instruments (Details) - Interest rate risk - BRL (R$)
R$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Possible 25% | Cash and cash equivalents | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial assets R$ (125,806)  
Possible 25% | Marketable securities | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (298,719)  
Possible 25% | Loans and financing | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities (324,946)  
Possible 25% | Loans and financing | BNDES – TJLP    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities (1,826)  
Possible 25% | Loans and financing | SOFR    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities (219,856)  
Remote 50% | Cash and cash equivalents | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (251,612)  
Remote 50% | Marketable securities | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (597,438)  
Remote 50% | Loans and financing | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities (649,891)  
Remote 50% | Loans and financing | BNDES – TJLP    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities (3,653)  
Remote 50% | Loans and financing | SOFR    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities (439,712)  
Probable (base value) | Cash and cash equivalents | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 3,434,978 R$ 3,204,403
Probable (base value) | Marketable securities | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 8,019,304 7,917,258
Probable (base value) | Loans and financing | CDI/SELIC    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 8,872,237 8,825,045
Probable (base value) | Loans and financing | BNDES – TJLP    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 79,499 101,302
Probable (base value) | Loans and financing | SOFR    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities R$ 23,897,418 R$ 25,195,489