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Risks and Financial Instruments - Sensitivity analysis of floating interest rate risk (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Exposure of interest rate risk      
Interest effect on debt R$ 1,482,183 R$ 1,465,259 R$ 716,969
DI [member]      
Exposure of interest rate risk      
Interest rate 13.04%    
Probable Scenario [member] | DI [member]      
Exposure of interest rate risk      
Effect on interest of cash equivalents and financial investments [1] R$ (774)    
Interest effect on debt [1] 17,516    
Effect on income of short positions in DI of debt hedging instruments [1] 123,687    
Incremental expenses R$ 140,429    
Interest rate 10.82%    
Period for sensitivity analysis 12 months    
Probable Scenario [member] | TJLP [member]      
Exposure of interest rate risk      
Interest effect on debt R$ 7    
Incremental expenses R$ 7    
[1] The annual base rate used was 13.04% and the sensitivity rate was 10.82% according to reference rates made available by B3, proportional to the 12 months period to sensitivity analysis.