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Employee benefits - Assumptions used for the Monte Carlo simulation (Details) - Performance Share Unit Program [Member]	Dec. 31, 2022	Dec. 31, 2021
Shares Granted Measurement Input [Member]
IfrsStatementLineItems [Line Items]
Measurement unit	1,709,955	1,474,723
Shares Granted Share Price Brl [Member]
IfrsStatementLineItems [Line Items]
Measurement unit	78.00	109.02
Share Granted Share Price Brl [Member]
IfrsStatementLineItems [Line Items]
Measurement unit	13.81	20.12
Historical volatility for shares, measurement input [member]
IfrsStatementLineItems [Line Items]
Measurement unit	39.00	39.00
Expected Term Measurement Input [Member]
IfrsStatementLineItems [Line Items]
Measurement unit	3	3
Expected Values Of Shareholder Return Measurement Input [Member]
IfrsStatementLineItems [Line Items]
Measurement unit	51.20	51.20
Expected Value Of Performance Factor Measurement Input [Member]
IfrsStatementLineItems [Line Items]
Measurement unit	53.08	60.96

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- Definition

The value of significant unobservable input used in the measurement of the fair value of entity's own equity instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2022-03-24
-Paragraph 93
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2022-en-r&anchor=para_93_d&doctype=Standard
-URIDate 2022-03-24

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- References

No definition available.

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