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Bonds and financing (Details 5 - Textuals) - BRL (R$) R$ in Thousands |  | 12 Months Ended
--- | --- | ---
Nov. 19, 2019 | Dec. 31, 2022 | Dec. 31, 2021
Bonds and financing |  |  |  |  |
Contribution of bonds |  | R$ (250,000) | [1] | R$ (500,000) | [2]
Bonds with Related Parties [member] |  |  |  |  |
Bonds and financing |  |  |  |  |
Contribution of bonds | R$ 1,535,800 |  |  |  |
Percentage of proceeds from bonds issued to be use for repay upon any liquidity event | 50.00% |  |  |  |
Bonds with third parties [member] |  |  |  |  |
Bonds and financing |  |  |  |  |
Percentage of net debt adjusted EBITDA ratio |  | 2.74% |  | 4.47% |
Number of consecutive periods |  | 2 |  |  |
Number of alternate periods |  | 3 |  |  |
Bonds with third parties [member] | 2021 [member] |  |  |  |  |
Bonds and financing |  |  |  |  |
Percentage of net debt adjusted EBITDA ratio |  | 4.25% |  |  |
Bonds with third parties [member] | 2022 [member] |  |  |  |  |
Bonds and financing |  |  |  |  |
Percentage of net debt adjusted EBITDA ratio |  | 4.00% |  |  |
Bonds with third parties [member] | 2023 [member] |  |  |  |  |
Bonds and financing |  |  |  |  |
Percentage of net debt adjusted EBITDA ratio |  | 3.75% |  |  |
Bonds with third parties [member] | 2024 [member] |  |  |  |  |
Bonds and financing |  |  |  |  |
Percentage of net debt adjusted EBITDA ratio |  | 3.50% |  |  |
[1] | On September 28, 2022, the Company issued simple debentures not convertible into shares, subject to remunerative interest of 100% of the CDI, plus a spread of 2.40% per year, in the total amount of R$250,000. The debentures aim to strengthen the Company's capital structure and lengthen the maturity profile of the debt, whose average term has become 37 months.
[2] | On August 6, 2021, the Company´s subsidiary Somos Sistemas de Ensino S.A. issued R$ 500 million in simple debentures not convertible into shares, subject to compensatory interest of 100% of DI Interest Deposit rate (CDI), plus spread of 2.30% per year. The debentures are aimed at reinforcing the Company’s capital structure and elongating the debt maturity profile, which average maturity now stands at 35 months.

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