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10 Trade receivables (Details 3) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Trade Receivables |  |  |
Write-offs | R$ (329,512) | R$ (179,929) | R$ (184,555)
(Losses)/reversal with state entities - related parties | 290 | (5,597) | 1,294
(Losses) with private sector / government entities | (176,776) | (54,064) | (61,315)
(Losses)/reversal with wholesale customers | 0 | 0 | (29,458)
Recoveries | 61,172 | 111,491 | 107,307
Amount recorded expense | R$ (444,826) | R$ (128,099) | R$ (166,727)

X
- Definition Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Impairment loss (reversal of impairment loss) recognised in profit or loss] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 20 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_20_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount represents information related to expense recognised during period for bad and doubtful debts for related party transaction state entities related parties. + References No definition available. + Details
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- Definition The amount represents information related to expense recognised during period for bad and doubtful debts for transaction with private sector. + References No definition available. + Details
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- Definition The amount represents information related to expense recognised during period for bad and doubtful debts for transaction with wholesale customers. + References No definition available. + Details
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- Definition The amount represents information related to recoveries recognized in bad debt expense. + References No definition available. + Details
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- Definition The amount represents information related to writeoffs during period for bad and doubtful debts for third party transaction. + References No definition available. + Details
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