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Trade Accounts Receivable - Breakdown of balances (Details) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2018
Trade Accounts Receivable |  |
Allowance for doubtful accounts | R$ (38,740) | R$ (37,179)
Trade accounts receivable, net | 2,297,763 | 2,537,058
Domestic | Third parties |  |
Trade Accounts Receivable |  |
Trade accounts receivable, gross | 735,627 | 853,684
Domestic | Receivables Investment Fund ("FIDC") |  |
Trade Accounts Receivable |  |
Trade accounts receivable, gross | R$ 25,825 | 22,299
Duration of FIDC | 2 years |
Amount of FIDC liability | R$ 24,665 | 22,054
Domestic | Related parties |  |
Trade Accounts Receivable |  |
Trade accounts receivable, gross | 28,652 | 36,727
Foreign | Third parties |  |
Trade Accounts Receivable |  |
Trade accounts receivable, gross | R$ 1,546,399 | R$ 1,661,527

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- Definition The amount of current trade receivables. [Refer: Trade receivables] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 78 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_78_b&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 68 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_68&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Amount of contractual obligation related to the Receivable Investment Fund ("FIDC") for which the Company has a co-obligation, net of transaction costs. + References No definition available. + Details
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- Definition Duration of the Receivable Investment Fund ("FIDC"), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. + References No definition available. + Details
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