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15. INCOME TAX AND SOCIAL CONTRIBUTION (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax And Social Contribution Details Abstract |  |  |
Income tax and social contribution income (expense), current | R$ (827,229) | R$ (358,981) | R$ (206,178)
Income tax and social contribution income (expense), deferred | 576,895 | (50,128) | (60,368)
Income tax and social contribution income (expense) | R$ (250,334) | R$ (409,109) | R$ (266,546)

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- Definition The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 12 -IssueDate 2018-01-01 -Paragraph 80 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2018-03-01&anchor=para_80_a&doctype=Standard -URIDate 2018-03-16 + Details
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