v3.25.1
Financial instruments - Exchange rate risk management (Details) - Currency risk [member] - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2023
Mar. 31, 2025
Dec. 31, 2024
United States of America, Dollars      
Disclosure of detailed information about financial instruments [line items]      
Financial assets   R$ 15,641,027 R$ 17,543,554
Financial liabilities   (79,650,668) (94,897,365)
Net Financial Assets (Liabilities)   (64,009,641) (77,353,811)
United States of America, Dollars | Trade accounts payable      
Disclosure of detailed information about financial instruments [line items]      
Financial liabilities   (1,527,479) (1,350,763)
United States of America, Dollars | Loans and financing      
Disclosure of detailed information about financial instruments [line items]      
Financial liabilities   (72,660,737) (83,004,915)
United States of America, Dollars | Liabilities for assets acquisitions and subsidiaries      
Disclosure of detailed information about financial instruments [line items]      
Financial liabilities   (87,698) (93,308)
United States of America, Dollars | Derivative financial instruments      
Disclosure of detailed information about financial instruments [line items]      
Financial liabilities   (5,374,754) (10,448,379)
United States of America, Dollars | Cash and cash equivalents      
Disclosure of detailed information about financial instruments [line items]      
Financial assets   8,157,219 6,496,039
United States of America, Dollars | Marketable securities      
Disclosure of detailed information about financial instruments [line items]      
Financial assets   49,870 70,255
United States of America, Dollars | Trade accounts receivable      
Disclosure of detailed information about financial instruments [line items]      
Financial assets   4,539,485 7,090,160
United States of America, Dollars | Derivative financial instruments      
Disclosure of detailed information about financial instruments [line items]      
Financial assets   R$ 2,894,453 R$ 3,887,100
Selling transactions in the futures markets      
Disclosure of detailed information about financial instruments [line items]      
Value at Risk Time Horizon 24 years