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Related party transactions - Summary of transactions between related parties explanatory (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of transactions between related parties [line items] |  |  |
Due from due to related party transactions | R$ 164,102 | R$ 146,814 |
Income expense from related party transactions | 4,920 | 16,905 | R$ 6,104
Securities [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Due from due to related party transactions | 15,085 | 0 |
Income expense from related party transactions | 76 | 0 | 17,403
Securities purchased under agreements to sell [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Due from due to related party transactions | 0 | 0 |
Income expense from related party transactions | 0 | 0 | 5,101
Accounts receivable and loans operations [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Due from due to related party transactions | 89,224 | 127,325 |
Income expense from related party transactions | 4,844 | 16,905 | 424
Securities sold under repurchase agreement [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Due from due to related party transactions | 0 | 0 |
Income expense from related party transactions | 0 | 0 | (16,824)
Financing instruments payable [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Due from due to related party transactions | 59,793 | 19,489 |
Income expense from related party transactions | R$ 0 | R$ 0 | R$ 0

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Income expense from related party transactions + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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