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Income Tax and Social Contribution - Schedule of estimate of tax credit realization (Detail) - BRL (R$) R$ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | R$ 3,051,628 | R$ 1,900,241
Within 1 year |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | 266,609 |
From 1 to 2 years [member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | 277,527 |
From 2 to 3 years |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | 322,779 |
From 3 to 4 years |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | 329,506 |
From 4 to 5 years |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | 350,582 |
From 5 to 8 years |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | 976,496 |
From 8 to 10 years |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Total | R$ 528,129 |

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