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Financial risk management - Credit risk - loans and advances by product and risk (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of credit risk exposure [line items] |  |
Financial assets | R$ 33,406,040 | R$ 19,515,659
Business loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 3,017,158 |
Real Estate Loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 5,121,411 | 3,471,354
Low Risk |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 16,562,388 |
Low Risk | Business loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 2,962,937 |
High Risk |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 653,973 |
High Risk | Business loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 54,221 |
Loans and advances to customer |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 17,216,362 | 8,790,058
Loans and advances to customer | Payroll Card |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 65,263 | 67,732
Loans and advances to customer | Credit Card |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 4,798,318 | 1,904,643
Loans and advances to customer | Overdraft protection agreement |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 12,862 | 20,193
Loans and advances to customer | Checking account overdraft |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 33,234 | 14,232
Loans and advances to customer | Payroll loans and personal credit |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 3,467,924 | 1,551,399
Loans and advances to customer | Business loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 3,017,158 | 1,582,868
Loans and advances to customer | Real Estate Loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 5,121,411 | 3,471,354
Loans and advances to customer | Rural loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 700,192 | 177,637
Loans and advances to customer | Low Risk |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 16,156,725 | 8,530,599
Loans and advances to customer | Low Risk | Payroll Card |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 55,753 | 64,570
Loans and advances to customer | Low Risk | Credit Card |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 4,335,866 | 1,793,872
Loans and advances to customer | Low Risk | Overdraft protection agreement |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 2,663 | 20,193
Loans and advances to customer | Low Risk | Checking account overdraft |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 1,255 | 10,660
Loans and advances to customer | Low Risk | Payroll loans and personal credit |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 3,315,747 | 1,510,962
Loans and advances to customer | Low Risk | Business loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets |  | 1,580,682
Loans and advances to customer | Low Risk | Real Estate Loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 4,782,312 | 3,372,023
Loans and advances to customer | Low Risk | Rural loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 700,192 | 177,637
Loans and advances to customer | High Risk |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 1,059,637 | 259,458
Loans and advances to customer | High Risk | Payroll Card |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 9,510 | 3,162
Loans and advances to customer | High Risk | Credit Card |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 462,452 | 110,770
Loans and advances to customer | High Risk | Overdraft protection agreement |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 10,199 |
Loans and advances to customer | High Risk | Checking account overdraft |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 31,979 | 3,572
Loans and advances to customer | High Risk | Payroll loans and personal credit |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 152,177 | 40,437
Loans and advances to customer | High Risk | Business loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets |  | 2,186
Loans and advances to customer | High Risk | Real Estate Loans |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 339,099 | 99,331
Amounts due from financial institutions [Member] |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 2,051,862 | 502,369
Amounts due from financial institutions [Member] | Low Risk |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 2,051,862 | 502,369
Swap contracts - liabilities |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | 66,545 | (56,758)
Swap contracts - liabilities | Low Risk |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets | R$ 66,545 | R$ (56,758)

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35H&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35I&doctype=Standard -URIDate 2021-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35M&doctype=Standard -URIDate 2021-03-24 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35N&doctype=Standard -URIDate 2021-03-24 + Details
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