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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%.

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