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Employee Benefits and Private Pension Plan - Post-employment benefit expense (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of defined benefit plans [line items] |  |  |
Employee benefit expense | R$ 15,585 | R$ 11,622 | R$ 9,892
Health and dental care plan [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Employee benefit expense | 15,265 | 11,127 | 10,442
Indemnification of FGTS [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Employee benefit expense | 4,409 | 6,199 | 5,423
Seniority bonus [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Employee benefit expense | 4,886 | 6,821 | 3,580
Life insurance [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Employee benefit expense | R$ 797 | R$ 1,117 | R$ 1,293

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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 amount of post-employment benefit expense included in profit or loss relating to defined benefit plans. [Refer: Profit (loss); Defined benefit plans [member]] [Contrast: Increase (decrease) in net defined benefit liability (asset) resulting from expense (income) in profit or loss] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 5 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_5&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 135 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_135_b&doctype=Standard -URIDate 2021-03-24 + Details
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