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Trade receivables (Details 5) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Trade receivables |  |  |  |
Opening balance |  | R$ 46,500 | R$ 32,055 | R$ 22,524
Additions |  | 45,904 | 39,326 | 29,870
Reversals |  | (288) | (2,854) | (4,855)
Write offs | [1] | (22,635) | (22,027) | (15,484)
Closing balance |  | R$ 69,481 | R$ 46,500 | R$ 32,055
[1] | The Company assessed its customers credit lines, on a regular basis. Due to historical losses and lack of prospects of credit recovery alongside these customers, the Company recognized R$ 22,635 as write-off as of December 31, 2022 (R$ 22,027 as of December 31, 2021).

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- Definition The amount of impairment loss recognised in profit or loss for trade receivables. [Refer: Impairment loss recognised in profit or loss; Trade receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of reversal of impairment loss recognised in profit or loss for trade receivables. [Refer: Reversal of impairment loss recognised in profit or loss; Trade receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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- References No definition available. + Details
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- Definition Represents the amount of provision for impairment loss on trade receivables, classified as current. + References No definition available. + Details
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- Definition Represents the amount of writeoff of impairment provision of trade receivables, classified as current. + References No definition available. + Details
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