Earnings per share (Details) R$ / shares in Units, shares in Thousands, R$ in Thousands	12 Months Ended
Dec. 31, 2021 BRL (R$) R$ / shares shares	Dec. 31, 2021 $ / shares	Dec. 31, 2020 BRL (R$) R$ / shares shares	Dec. 31, 2020 $ / shares	Dec. 31, 2019 BRL (R$) R$ / shares shares	Dec. 31, 2019 $ / shares
Basic earnings per share [abstract]
Profit attributable to stockholders of the Company \| R$	R$ 1,166,102		R$ 1,291,658		R$ 1,365,597
Weighted average number of ordinary shares outstanding	330,310,786		329,292,240		328,169,609
Basic earnings (loss) per share \| $ / shares		$ 3.5303		$ 3.9225		$ 4.1613
Diluted earnings per share [abstract]
Net income atributable to equity holders of the shares \| R$	R$ 1,166,102		R$ 1,291,658		R$ 1,365,597
Weighted average number of ordinary shares outstanding	330,310,786		329,292,240		328,169,609
Dilutive effect of convertible instruments on number of ordinary shares	1,864,038		521,937		1,090,047
Adjusted weighted average number of ordinary shares outstanding	332,174,824		329,814,177		329,259,656
Diluted earnings per common share - R$ \| (per share)	R$ 3.5105	$ 3.5105	R$ 3.9163	$ 3.9163	R$ 4.1475	$ 4.1475

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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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).

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

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The number of dilutive potential ordinary shares that relate to the assumed conversion of the entity's convertible instruments.

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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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