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Disclosure - Property, plant and equipment, intangible assets, goodwill, right-of-use assets and contract assets - Summary of transaction charts of contract asset (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure of property plant and equipment intangible assets goodwill right of use assets and contract assets [line items] |  |
Beginning of period | R$ 695,938 | R$ 600,541
Additions | 1,057,379 | 886,202
Disposals | (25,439) |
Transfer to concession rights and customer relationships | (1,021,896) | (790,805)
End of period | 705,982 | 695,938
Gas and Power [member] |  |
Disclosure of property plant and equipment intangible assets goodwill right of use assets and contract assets [line items] |  |
Beginning of period | 686,690 | 594,601
Additions | 1,020,176 | 885,631
Disposals |  |
Transfer to concession rights and customer relationships | (1,021,896) | (793,542)
End of period | 684,970 | 686,690
Moove [member] |  |
Disclosure of property plant and equipment intangible assets goodwill right of use assets and contract assets [line items] |  |
Beginning of period | 9,248 | 5,940
Additions | 37,203 | 571
Disposals | (25,439) |
Transfer to concession rights and customer relationships |  | (2,737)
End of period | R$ 21,012 | R$ 9,248

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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 an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer, when that right is conditioned on something other than the passage of time (for example, the entity’s future performance). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 105 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_105&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 116 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_116_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease in contract assets resulting from impairment. [Refer: Contract assets; Impairment loss] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_118_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease in contract assets resulting from the right to consideration becoming unconditional. [Refer: Contract assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_118_d&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase in contract assets resulting from business combinations. [Refer: Business combinations [member]; Contract assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_118_a&doctype=Standard -URIDate 2021-03-24 + Details
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