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23 Post-employment Benefits (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits |  |  |
Management [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits | 1,116 | R$ 1,541 | R$ 1,725
Pension Plans [member] | Management [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits | 977 | 1,450 | 1,598
Healthcare Plan [member] | Management [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits | 139 | 91 | 127
Employees [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits | 227,518 | 236,785 | 242,025
Employees [member] | Pension Plans [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits | 57,977 | 60,754 | 67,457
Employees [member] | Healthcare Plan - Post Employment [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits | 94,349 | 99,577 | 97,866
Employees [member] | Healthcare Plan - Active Employees [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Post-employment benefits | R$ 75,192 | R$ 76,454 | R$ 76,702

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- Definition The amount of post-employment benefit expense relating to defined benefit plans. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 5 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_5&doctype=Standard -URIDate 2020-01-01 + Details
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