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Financial Risk Management (Details 4 - Textuals) - BRL (R$) R$ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Sep. 28, 2022 | Aug. 06, 2021 | Dec. 31, 2022
Sensitivity analysis |  |  |
Interest rate basis |  |  | CDI
Estimated interest rate (as a percent) |  |  | 12.43%
Probable scenario over a 12-month horizon |  |  |
Sensitivity analysis |  |  |
Percentage of deterioration of the projected rates |  |  | 0.00%
Probable scenario over a 12-month horizon | Base Scenario |  |  |
Sensitivity analysis |  |  |
Adjustment to interest rate basis |  |  | 12.43%
Interest rate basis |  |  | CDI
Percentage of deterioration of the projected rates |  |  | 0.00%
Probable scenario over a 12-month horizon | Scenario I |  |  |
Sensitivity analysis |  |  |
Percentage of deterioration of the projected rates |  |  | 25.00%
Probable scenario over a 12-month horizon | Scenario II |  |  |
Sensitivity analysis |  |  |
Percentage of deterioration of the projected rates |  |  | 50.00%
Somos Sistemas de Ensino S.A. ("Somos Sistemas") |  |  |
Sensitivity analysis |  |  |
Issued simple debentures, not convertible | R$ 250,000 |  |
Somos Sistemas de Ensino S.A. ("Somos Sistemas") | Non-current Bonds with Related Parties [member] |  |  |
Sensitivity analysis |  |  |
Issued simple debentures, not convertible | R$ 250,000 |  |
Adjustment to interest rate basis | 2.40% |  |
Interest rate basis | 100% of the CDI |  |
Borrowings average maturity | 37 months |  |
Somos Sistemas de Ensino S.A. ("Somos Sistemas") | Non-current Bonds [member] |  |  |
Sensitivity analysis |  |  |
Issued simple debentures, not convertible |  | R$ 500,000 |
Adjustment to interest rate basis |  | 2.30% |
Interest rate basis |  | 100% of DI Interest Deposit rate (CDI) |
Borrowings average maturity |  | 35 months |

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