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Labor and social obligations (Details 3) - Share options [member] - BRL (R$) R$ / shares in Units, R$ in Thousands | Dec. 01, 2023 | Oct. 01, 2023 | Aug. 01, 2023 | Apr. 17, 2023 | Feb. 13, 2023
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IfrsStatementLineItems [Line Items] |  |  |  |  |
Strike price at the measurement date | R$ 60 | R$ 59 | R$ 59 | R$ 57 | R$ 56
Expected volatility | 0.00% | 0.00% | 0.00% | 0.00% | 0.00%
Risk-free interest rate |  |  |  |  | 13.00%
Share price at the measurement date | R$ 100.97 | R$ 79.12 | R$ 76.45 | R$ 62.51 | R$ 70.69
Model used | Binomial | Binomial | Binomial | Binomial | Binomial
Weighted average fair value at the measurement date | R$ 54.25 | R$ 38.67 | R$ 37.04 | R$ 32.04 | R$ 29.54
Bottom of range [member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Expected volatility | 34.00% | 44.00% | 47.00% | 48.00% | 46.00%
Risk-free interest rate | 10.00% | 11.00% | 10.00% | 11.00% |
Expected life of stock options | 1 year | 1 year | 1 year | 1 year | 1 year
Top of range [member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Expected volatility | 56.00% | 56.00% | 56.00% | 55.00% | 56.00%
Risk-free interest rate | 11.00% | 12.00% | 12.00% | 13.00% |
Expected life of stock options | 5 years | 5 years | 5 years | 5 years | 5 years

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- Definition The description of the option pricing model used for share options granted. [Refer: Option pricing model [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The percentage of an expected dividend used to calculate the fair value of share options granted. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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