v3.26.1
RISK MANAGEMENT - Schedule of Sensitivity Analysis of Financial Instruments (Details)
R$ in Thousands
 6 Months Ended
Jun. 30, 2026
BRL (R$)
$ / gal
Dec. 31, 2025
BRL (R$)
Interest rate risk | Exposure to CDI    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 14.20%  
Exposed assets (liabilities), net R$ (84,304)  
Interest rate risk | Exposure to SOFR    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 3.70%  
Exposed assets (liabilities), net R$ (1,156,726)  
Interest rate risk | Interest rate devaluation by -10% | Exposure to CDI    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 12.70%  
Exposed assets (liabilities), net R$ 2,662  
Interest rate risk | Interest rate devaluation by -10% | Exposure to SOFR    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 3.30%  
Exposed assets (liabilities), net R$ 4,294  
Interest rate risk | Interest rate devaluation by -25% | Exposure to CDI    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 10.60%  
Exposed assets (liabilities), net R$ 6,656  
Interest rate risk | Interest rate devaluation by -25% | Exposure to SOFR    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 2.80%  
Exposed assets (liabilities), net R$ 10,735  
Interest rate risk | Interest rate appreciation by 10% | Exposure to CDI    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 15.60%  
Exposed assets (liabilities), net R$ (2,662)  
Interest rate risk | Interest rate appreciation by 10% | Exposure to SOFR    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 4.10%  
Exposed assets (liabilities), net R$ (4,294)  
Interest rate risk | Interest rate appreciation by 25% | Exposure to CDI    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 17.70%  
Exposed assets (liabilities), net R$ (6,656)  
Interest rate risk | Interest rate appreciation by 25% | Exposure to SOFR    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Rate p.a. 4.60%  
Exposed assets (liabilities), net R$ (10,735)  
Commodity price risk | Convertible debt instruments    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Price (in usd per share) | $ / gal 5.4  
Liabilities R$ (3,301,752)  
Commodity price risk | Interest rate devaluation by -10% | Convertible debt instruments    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Price (in usd per share) | $ / gal 4.9  
Effect on profit or loss R$ 330,175  
Commodity price risk | Interest rate devaluation by -25% | Convertible debt instruments    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Price (in usd per share) | $ / gal 4.1  
Effect on profit or loss R$ 825,438  
Commodity price risk | Interest rate appreciation by 10% | Convertible debt instruments    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Price (in usd per share) | $ / gal 5.9  
Effect on profit or loss R$ (330,175)  
Commodity price risk | Interest rate appreciation by 25% | Convertible debt instruments    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Price (in usd per share) | $ / gal 6.8  
Effect on profit or loss R$ (825,438)  
Currency risk | Exposure to US$    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Liabilities (22,444,794) R$ (39,156,408)
Currency risk | Exposure to €    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Liabilities R$ (1,075) R$ (1,600)