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Management of financial risks and financial instruments - Summary of sensitivity analysis (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Disclosure of sensitivity analysis [Line Items]    
Sensitivity analysis increase decrease in one percent R$ (6,691) R$ (13,770)
Sensitivity analysis increase decrease in twenty five percent 11,399 (447,576)
Sensitivity analysis increase decrease in fifty percent 438,189 (1,231,925)
Fixed interest rate | Fixed interest rate in Reais    
Disclosure of sensitivity analysis [Line Items]    
Sensitivity analysis increase decrease in one percent (258) (174)
Sensitivity analysis increase decrease in twenty five percent 21,269 (231,438)
Sensitivity analysis increase decrease in fifty percent 22,753 (483,589)
Exchange coupons | Foreign currencies coupon rate    
Disclosure of sensitivity analysis [Line Items]    
Sensitivity analysis increase decrease in one percent (367) (15)
Sensitivity analysis increase decrease in twenty five percent (18,174) (5,407)
Sensitivity analysis increase decrease in fifty percent (36,588) (10,418)
Foreign currencies | Exchange rates    
Disclosure of sensitivity analysis [Line Items]    
Sensitivity analysis increase decrease in one percent 331 (2,089)
Sensitivity analysis increase decrease in twenty five percent 343,440 22,825
Sensitivity analysis increase decrease in fifty percent 907,349 (120,873)
Price indexes | Inflation coupon rates    
Disclosure of sensitivity analysis [Line Items]    
Sensitivity analysis increase decrease in one percent (103) (118)
Sensitivity analysis increase decrease in twenty five percent (12,998) (19,523)
Sensitivity analysis increase decrease in fifty percent (24,579) (40,147)
Share | Shares prices    
Disclosure of sensitivity analysis [Line Items]    
Sensitivity analysis increase decrease in one percent (3,472) (4,689)
Sensitivity analysis increase decrease in twenty five percent (251,572) (46,927)
Sensitivity analysis increase decrease in fifty percent (289,613) (242,687)
Seed Money | Seed Money    
Disclosure of sensitivity analysis [Line Items]    
Sensitivity analysis increase decrease in one percent (2,822) (6,685)
Sensitivity analysis increase decrease in twenty five percent (70,566) (167,106)
Sensitivity analysis increase decrease in fifty percent R$ (141,133) R$ (334,211)