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Earnings per share (Detail) - BRL (R$) R$ / shares in Units, shares in Thousands, R$ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Earnings per share [abstract]
Profit attributable to shareholders of the Company	R$ 909,267	R$ 478,781	R$ 127,186
Weighted average number of outstanding common shares	317,647,562	262,288,607	262,288,607
Basic earnings per share	R$ 2.8625	R$ 1.8254	R$ 0.4849
Profit used to determine diluted earnings per share	R$ 909,267	R$ 478,781	R$ 127,186
Weighted average number of outstanding common shares	317,647,562	262,288,607	262,288,607
Weighted average number of shares under options	2,581,716
Weighted average number of shares that would have been issued at average market price	(2,102,607)
Adjusted number of shares	318,126,671	262,288,607	262,288,607
Diluted earnings per share-R$	R$ 2.8582	R$ 1.8254	R$ 0.4849

X

- Definition

The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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Basic earnings (loss) per share from continuing operations. [Refer: Basic earnings (loss) per share; Continuing operations [member]]

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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options.

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The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)]

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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