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19 Deferred taxes and contributions (Details 3) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Taxes And Contributions
Deferred tax assets (liabilities) net, beginning	R$ (433,996)	R$ (261,242)	R$ (36,754)
Net change in the year - corresponding entry to the income statement	108,037	(154,962)	(224,596)
Net change in the year - corresponding entry to valuation adjustments to equity (Note 21 (b))	5,243	(17,792)	108
Total net change	113,280	(172,754)	(224,488)
Deferred tax assets (liabilities) net, ending	R$ (320,716)	R$ (433,996)	R$ (261,242)

X

- Definition

The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2020-01-01
-Paragraph 81
-Subparagraph g
-Clause ii
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-URIDate 2020-01-01

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X

- Definition

The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2020-01-01
-Paragraph 81
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-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_g_i&doctype=Standard
-URIDate 2020-01-01

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X

- Definition

The increase (decrease) in a deferred tax liability (asset). [Refer: Deferred tax liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 12
-IssueDate 2020-01-01
-Paragraph 81
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-URIDate 2020-01-01

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X

- References

No definition available.

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X

- Definition

The amount of deferred taxes xorreposnding entry to valuation adjustment. to equity.

+ References

No definition available.

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