Earnings per share (basic and diluted) (Details) - BRL (R$) R$ / shares in Units, shares in Thousands, R$ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings per share [abstract]
Profit (loss), attributable to owners of parent	R$ 4,513,409	R$ 3,898,702	R$ 3,579,050
Basic weighted average number of outstanding shares (in shares)	541,673	539,835	555,429
Basic earnings per share (in R$ per share)	R$ 8.3324	R$ 7.2220	R$ 6.4438
Share-based plan and treasury shares (in shares)	6,646	4,377	17,577
Diluted weighted average number of outstanding shares (in shares)	548,319	544,212	573,006
Diluted earnings per share (in R$ per share)	R$ 8.2314	R$ 7.1639	R$ 6.2461

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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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 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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Share Based Incentive Program

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