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Earnings per share (Details) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |  |
Profit attributable to the Parent | R$ 12,766,035 | R$ 13,365,506 | R$ 9,449,313
Basic Earnings Per Shares Brazilian Reais [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Common shares | R$ 1,629.22 | R$ 1,708.02 | R$ 1,208.83
Preferred shares | 1,792.14 | 1,878.82 | 1,329.71
Net Profit Attributable Basic Brazilian Reais [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Common shares | 6,197,567 | 6,488,760 | 4,587,598
Preferred shares | 6,568,468 | 6,876,746 | 4,861,715
Weighted Average Shares Outstanding In Thousands Basic [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Common shares | 3,804,009 | 3,799,003 | 3,795,082
Preferred shares | R$ 3,665,150 | R$ 3,660,144 | R$ 3,656,223

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