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31. Other operating income (expenses), net (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Other Operating Income Expenses Net Details Abstract |  |  |
Other operating income, net | R$ 93,089 | R$ 75,410 | R$ 62,570
Other operating expenses | (64,498) | (81,089) | (57,848)
Other operating income (expenses), net | R$ 28,591 | R$ (5,679) | R$ 4,722

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- Definition The amount of operating income (expense) that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_85&doctype=Standard -URIDate 2018-03-16 + Details
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