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39 Additional information to the Statement of Cash Flows (Details Narrative) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Contract Assets | R$ 1,406,454 | R$ 1,039,234 | R$ 813,450
Property, plant and equipment acquisitions | 273,823 | 551,162 | 1,455,318
Right-of-use assets | 132,521 |  |
Foz do Chopim Energetica Ltda [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Accounts payable to suppliers |  |  | 19,461
Purchases made in installments and not settled [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Contract Assets | 104,834 | 48,068 | 50,927
Property, plant and equipment acquisitions | R$ 21,773 | R$ 52,446 | R$ 71,454

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- Definition The increase in property, plant and equipment resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_iii&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph j -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_j&doctype=Standard -URIDate 2020-01-01 + Details
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