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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, 2022
Dec. 31, 2021
Dec. 31, 2020
Exposure of interest rate risk      
Interest effect on debt R$ (1,465,259) R$ (716,969) R$ (658,980)
Effect on income of short positions in DI of debt hedging instruments R$ (102,175)    
DI [member]      
Exposure of interest rate risk      
Borrowings, interest rate 12.37%    
TJLP [member]      
Exposure of interest rate risk      
Borrowings, interest rate 6.08%    
Probable Scenario [member] | DI [member]      
Exposure of interest rate risk      
Interest effect on cash equivalents and financial investments [1] R$ 26,382    
Interest effect on debt [1] (34,907)    
Incremental expenses R$ (110,700)    
Borrowings, interest rate 13.41%    
Probable Scenario [member] | TJLP [member]      
Exposure of interest rate risk      
Interest effect on debt [2] R$ 0    
Incremental expenses R$ 0    
Borrowings, interest rate 7.20%    
[1] Base rates used was 12.37% and sensivity rate was 13.41%.
[2] Base rates used was 6.08% and sensivity rate was 7.20%.