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Post-employment Benefits - Additional Information (Detail) - BRL (R$) R$ in Thousands | 5 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Health Plan |  |  |  |
Expected duration of contribution to Social Security (Instituto Nacional do Seguro Social), or "INSS" for entitled to defined benefit plan | 20 years |  |  |
Expected uninterrupted service duration for entitled to defined benefit plan | 15 years |  |  |
Sponsor contribution to defined contribution plans |  | R$ 217 | R$ 214 | R$ 215
Weighted average duration of defined benefit obligation |  | 9 years 7 months 6 days |  |
Change in methods for preparing the sensitivity analysis |  | There was no change in relation to previous years in the methods and assumptions used in preparing the sensitivity analysis. |  |
Defined benefit [member] | CLE [member] |  |  |  |
Health Plan |  |  |  |
Sponsor contribution to defined contribution plans |  | R$ 5,166 | 7,044 | R$ 4,349
Defined benefit [member] | CLE [member] | Defined benefit obligation [member] |  |  |  |
Health Plan |  |  |  |
Sponsor contribution to defined contribution plans |  | 60,560 |  |
Health plan [member] |  |  |  |
Health Plan |  |  |  |
Sponsor contribution to defined contribution plans |  | R$ 25,169 | R$ 26,804 |
Weighted average duration of defined benefit obligation |  | 11 years 8 months 12 days | 14 years 10 months 24 days |

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- Definition The expected service duration for entitled to a defined benefit plan for employess. + References No definition available. + Details
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from contributions to a defined benefit plan. [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 2021-01-01 -Paragraph 141 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_f&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of changes in the methods and assumptions used in preparing a sensitivity analysis for significant actuarial assumptions. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 145 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_145_c&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 147 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_147_c&doctype=Standard -URIDate 2021-03-24 + Details
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