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Employee Benefits and Private Pension Plan - Changes in provision for post-employment benefits (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Employee benefits and private pension plan details 1 [abstract] |  |  |
Provision for post-employment benefits, opening | R$ 272,867 | R$ 249,815 |
Current service cost | (13,568) | (10,704) |
Interest cost | 18,779 | 21,386 |
Expense for the year | 5,211 | 10,682 | R$ 27,558
Losses from changes in actuarial assumptions | 24,822 | 44,489 |
Benefits paid directly by Company and its subsidiaries | (18,969) | (33,510) |
Exchange rates from post employment benefits | 793 | 1,391 |
Provision for post-employment benefits, ending | R$ 284,724 | R$ 272,867 | R$ 249,815

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- Definition The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 102 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_102&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_99&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 104 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_104&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of provisions for employee benefits. [Refer: Employee benefits expense; Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_d&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Actuarial (gains) losses from changes in actuarial assumptions. + References No definition available. + Details
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- Definition Employee benefits and private pension plan details 1. + References No definition available. + Details
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- Definition Benefits paid directly by Company and its subsidiaries. + References No definition available. + Details
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- Definition Interest cost of post-employment benefits. + References No definition available. + Details
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- Definition Current service cost of post-employment benefits. + References No definition available. + Details
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