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Business Combinations (Details) (Parenthetical) - BRL (R$) R$ in Thousands | Oct. 29, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Mar. 02, 2021 | Dec. 31, 2020
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Business Combinations |  |  |  |  |  |  |
Intangible assets - Customer Portfolio |  |  | R$ 3,834 | R$ 83,589 | [1] |  |
Intangible assets - Trade agreement | [2] |  |  | 247,622 |  |  |
Inventories | [3] |  |  | 4,534 |  |  |
Intangible assets - Software |  |  | R$ 3,225 | 11,036 | [4] |  |
Customer Portfolio [member] |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Percentage of receivables |  | 8.00% |  |  |  |  |
Business combinations |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Intangible assets - Software |  |  |  |  |  | R$ 11,036 |
Accounts receivable from customers, gross contractual amounts |  |  |  | 24,344 |  |  |
Accounts receivable from customers which were uncollectible on the acquisition date |  |  |  |  |  |  | R$ 3,746
SEL |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Intangible assets - Customer Portfolio | [1] |  |  | 18,783 |  |  |
Intangible assets - Trade agreement | [2] |  |  | 0 |  |  |
Inventories | [3] |  |  | 0 |  |  |
Intangible assets - Software | [4] |  |  | 1,296 |  |  |
SEL | Customer Portfolio [member] |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Intangible assets - Customer Portfolio |  |  |  |  |  | R$ 18,783 |
Redação Nota 1000 |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Intangible assets - Customer Portfolio | [1] |  |  | 0 |  |  |
Intangible assets - Trade agreement | [2] |  |  | 0 |  |  |
Inventories | [3] |  |  | 0 |  |  |
Intangible assets - Software | [4] |  |  | 5,692 |  |  |
EMME |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Intangible assets - Customer Portfolio | [1] |  |  | 0 |  |  |
Intangible assets - Trade agreement | [2] |  |  | 0 |  |  |
Inventories | [3] |  |  | 0 |  |  |
Intangible assets - Software | [4] |  |  | 4,048 |  |  |
De Gouges |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Useful life measured as period of time, intangible assets other than goodwill |  | 10 years |  |  |  |  |
Intangible assets - Customer Portfolio | [1] |  |  | 64,806 |  |  |
Intangible assets - Trade agreement |  | R$ 247,622 |  | 247,622 | [2] |  |
Estimated sales rate |  | 10.00% |  |  |  |  |
Inventories |  | R$ 4,534 |  | 4,534 | [3] |  |
Estimated sale rate for inventory |  | 33.00% |  |  |  |  |
Intangible assets - Software | [4] |  |  | R$ 0 |  |  |
De Gouges | Customer Portfolio [member] |  |  |  |  |  |  |
Business Combinations |  |  |  |  |  |  |
Intangible assets - Customer Portfolio |  | R$ 64,806 |  |  |  |  |
[1] | As a result of purchase price allocation, the Company identified R$ 18,783, customer portfolio (“SESI”), and R$ 64,806, customer portfolio (“De Gouges”) based on customer portfolio receivables expectation around 8% per year. See Note 14.
[2] | As a result of the purchase price allocation, the Company identified R$ 247,622, a commercial agreement (“Eleva Holding”), which corresponds to the sale of teaching material from "De Gouges" to partner schools of "Eleva Holding" within 10 years, with an estimated sales rate of 10% per year.
[3] | As a result of the purchase price allocation, the Company identified R$ 4,534 in inventories (“De Gouges”), based on the expectation of sales of this inventory at around 33% per year.
[4] | As a result of purchase price allocation, the Company identified R$ 11,036, Educational Software applied in the “SESI” learning system, Writing Correction Software for Education System “Redação Nota 1000” and software that produces digital marketing material solutions for schools “EMME”, all of them based on relief from royalties’ criteria (RIR) and each acquisition with its corresponding rate of net revenue by investment. See Note 14.

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