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Provision for legal proceedings and judicial deposits - Summary Changes in Provision for Legal Proceedings (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of other provisions [line items] |  |  |
Legal proceedings provision beginning balance |  | R$ 1,360,898 | R$ 1,354,171
Provisions |  | 242,960 | 140,481
Settlement / Write-offs |  | (189,500) | (222,790)
Exchange rate |  |  | 109
Interest | [1] | 229,703 | 88,927
Legal proceedings provision ending balance |  | 1,644,061 | 1,360,898
Legal proceedings provision, tax [member] |  |  |
Disclosure of other provisions [line items] |  |  |
Legal proceedings provision beginning balance |  | 635,406 | 589,180
Provisions |  | 24,559 | 25,443
Settlement / Write-offs |  | (15,331) | (11,947)
Exchange rate |  |  |
Interest | [1] | 2,976 | 32,730
Legal proceedings provision ending balance |  | 647,610 | 635,406
Civil, environmental and regulatory [member] |  |  |
Disclosure of other provisions [line items] |  |  |
Legal proceedings provision beginning balance |  | 350,769 | 332,527
Provisions |  | 103,805 | 46,989
Settlement / Write-offs |  | (56,931) | (76,772)
Exchange rate |  |  |
Interest | [1] | 187,391 | 48,025
Legal proceedings provision ending balance |  | 585,034 | 350,769
Legal proceedings provision, labor [member] |  |  |
Disclosure of other provisions [line items] |  |  |
Legal proceedings provision beginning balance |  | 374,723 | 432,464
Provisions |  | 114,596 | 68,049
Settlement / Write-offs |  | (117,238) | (134,071)
Exchange rate |  |  | 109
Interest | [1] | 39,336 | 8,172
Legal proceedings provision ending balance |  | R$ 411,417 | R$ 374,723
[1] | Includes write-off of interest due to reversals.

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- Definition The increase (decrease) in other provisions resulting from interest on provisions. + References No definition available. + Details
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- Definition The amount of additional other provisions made. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_b&doctype=Standard -URIDate 2021-03-24 + Details
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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 The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of non-current provision for legal proceedings. [Refer: Legal proceedings provision] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Section Example 10 A court case -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&doctype=Illustrative%20Examples&dita_xref=IAS37_IE_C_ex10__IAS37_IE_C_ex10_TI -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 87 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_87&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount reversed for unused other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_d&doctype=Standard -URIDate 2021-03-24 + Details
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