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Employee Benefits and Private Pension Plan - Additional information (Detail) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 BRL (R$) Employees | Dec. 31, 2022 BRL (R$) Employees | Dec. 31, 2021 BRL (R$)
Disclosure of defined benefit plans [line items] |  |  |
Maximum matching contribution percentage | 11.00% |  |
Defined contribution pension plan fund | R$ | R$ 18,271 | R$ 18,204 |
Contribution to Ultraprev | R$ | R$ 22,482 | R$ 16,368 | R$ 16,120
Number of active participating employees | 4,053 | 4,097 |
Number of retired participating employees | 298 | 286 |
Number of former employees receiving benefits | 23 | 23 |
Demographic assumption percentage of reasonably possible decrease in mortality table for other benefits | 10.00% |  |
Bottom of range [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Monthly accumulated fund percentage | 0.30% |  |
Fixed monthly accumulated fund period | 5 years |  |
Top of range [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Monthly accumulated fund percentage | 1.00% |  |
Fixed monthly accumulated fund period | 35 years |  |
Average period | 73 months |  |

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- Definition The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 141 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_f&doctype=Standard -URIDate 2023-03-23 + 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 weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 147 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_147_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The percentage of participating employees' accumulated fund to a defined contribution plan. + References No definition available. + Details
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- Definition The amount of defined contribution pension plan reversion fund. + References No definition available. + Details
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- Definition The demographic assumption percentage of reasonably possible decrease in mortality table for other benefits. + References No definition available. + Details
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- Definition The period of participating employees' accumulated fund to a defined contribution plan. + References No definition available. + Details
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Balance Type: | na
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- Definition The maximum percentage of employer's matching contributions to a defined contribution plan that vests in a given year. + References No definition available. + Details
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- Definition The number of active participating employees to a defined contribution plan. + References No definition available. + Details
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Balance Type: | na
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- Definition The number of former employees receiving benefits to a defined contribution plan. + References No definition available. + Details
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- Definition The number of retired participating employees to a defined contribution plan. + References No definition available. + Details
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- Details
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- Details
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Period Type: |