XML 190 R142.htm IDEA: XBRL DOCUMENT
v3.22.1

Transactions with related parties - Schedule of summary (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of transactions between related parties [line items] |  |  |
Income of loans and advances to costumers | R$ (7,163) |  |
Interest expenses | (1,542) | R$ (20,638) | R$ (14,956)
Other administrative revenues (expenses) | (737) | (1,085) |
Other operating expenses | (180,352) |  |
Demand deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (97,116) | (7,710) |
Time deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (259,975) | (284,840) |
Other liabilities |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (32,339) |  |
Loans and advances to costumers and Debentures |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts receivable | 606,025 | 137,250 |
Securities |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts receivable | 81,534 |  |
Parent Company |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Income of loans and advances to costumers | (7,163) |  |
Interest expenses | (813) | (2,503) | (3,564)
Other operating expenses | (180,352) |  |
Parent Company | Demand deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (86,997) | (30) |
Parent Company | Time deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (87,928) | (22,471) |
Parent Company | Other liabilities |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (32,339) |  |
Parent Company | Loans and advances to costumers and Debentures |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts receivable | 159,269 | 9 |
Parent Company | Securities |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts receivable | 81,534 |  |
Key management personnel |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Interest expenses | (215) | (2,181) | (797)
Key management personnel | Demand deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (800) | (2,287) |
Key management personnel | Time deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (25,962) | (37,816) |
Key management personnel | Loans and advances to costumers and Debentures |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts receivable | 19,789 | 2,615 |
Other related parties |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Interest expenses | (514) | (15,954) | R$ (10,595)
Other administrative revenues (expenses) | (737) | (1,085) |
Other related parties | Demand deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (9,319) | (5,393) |
Other related parties | Time deposits |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts payable | (146,085) | (224,553) |
Other related parties | Loans and advances to costumers and Debentures |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amounts receivable | R$ 426,967 | R$ 134,626 |

X
- Definition Income of loans and advances to costumers related party transactions. + References No definition available. + Details
Name: | b3_IncomeOfLoansAndAdvancesToCostumersRelatedPartyTransactions
Namespace Prefix: | b3_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Interest expenses related party transactions. + References No definition available. + Details
Name: | b3_InterestExpensesRelatedPartyTransactions
Namespace Prefix: | b3_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other administrative revenues (expenses) related party transactions. + References No definition available. + Details
Name: | b3_OtherAdministrativeRevenuesExpensesRelatedPartyTransactions
Namespace Prefix: | b3_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other operating expenses related party transaction. + References No definition available. + Details
Name: | b3_OtherOperatingExpensesRelatedPartyTransactions
Namespace Prefix: | b3_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amounts payable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_18_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_AmountsPayableRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amounts receivable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_18_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_AmountsReceivableRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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
Name: | ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=b3_DemandDepositsRelatedPartyTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=b3_TimeDepositsRelatedPartyTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=b3_OtherLiabilitiesRelatedPartyTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=b3_LoansAndAdvancesToCostumersAndDebenturesRelatedPartyTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=b3_SecuritiesRelatedPartyTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_ParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_KeyManagementPersonnelOfEntityOrParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_OtherRelatedPartiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |