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Investment - Summary of Balances and Changes in Joint Ventures (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of joint ventures [line items] |  |  |
Joint ventures, beginning | R$ 122,061 | R$ 116,142 | R$ 79,377
Capital increase | 31,908 | 16,000 | 47,281
Valuation adjustments | (3,704) | 4,079 | (2,935)
Dividends and interest on equity (gross) | (32,065) | (30,959) | (12,915)
Share of profit (loss) of joint ventures | (16,246) | 16,799 | 5,334
Joint ventures, ending | 101,954 | 122,061 | 116,142
Uniao vopak [member] |  |  |
Disclosure of joint ventures [line items] |  |  |
Joint ventures, beginning | 6,096 | 4,518 | 4,545
Share of profit (loss) of joint ventures | 1,350 | 1,578 | (27)
Joint ventures, ending | 7,446 | 6,096 | 4,518
Rpr [member] |  |  |
Disclosure of joint ventures [line items] |  |  |
Joint ventures, beginning | 54,739 | 45,409 | 31,514
Valuation adjustments | (3,704) | 4,079 | (2,935)
Dividends and interest on equity (gross) | (32,065) | (30,959) | (12,915)
Share of profit (loss) of joint ventures | 1,148 | 36,210 | 29,745
Joint ventures, ending | 20,118 | 54,739 | 45,409
Connect car [member] |  |  |
Disclosure of joint ventures [line items] |  |  |
Joint ventures, beginning | 61,226 | 66,215 | 43,318
Capital increase | 31,908 | 16,000 | 47,281
Share of profit (loss) of joint ventures | (18,744) | (20,989) | (24,384)
Joint ventures, ending | R$ 74,390 | R$ 61,226 | R$ 66,215

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- Definition The cash inflow representing dividends received from joint ventures, classified as investing activities. [Refer: Joint ventures [member]; Dividends received] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_16&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 10 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_10&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The Asset Valuation Adjustment is a correction of the amount presented in the balance sheet by an asset or liability, in relation to its fair value. This correction aims at expressing the patrimonial reality of a company. + References No definition available. + Details
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