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Labor and social obligations (Details 4) - Share options [member] | 12 Months Ended
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Dec. 31, 2023 Number R$ / shares shares | Dec. 31, 2022 Number R$ / shares shares | Dec. 31, 2021 Number shares
IfrsStatementLineItems [Line Items] |  |  |
Weighted average exercise price (in Reais), Outstanding at the beginning | R$ 79.47 |  |
Number of stock options, Outstanding at the beginning | Number | 3,729,287 | 3,086,728 | 2,510,983
Weighted average exercise price (in Reais), Granted | R$ 60.83 |  |
Number of stock options, Granted | Number | 467,000 | 1,234,919 | 1,170,000
Weighted average exercise price (in Reais), Exercised | R$ 59.67 |  |
Number of stock options, Exercised | Number | (164,214) |  | (442,669)
Weighted average exercise price (in Reais), Stock options exchanged |  |  |
Number of stock options, Stock options exchanged | Number | (1,751,599) |  |
Weighted average exercise price (in Reais), Forfeited | R$ 110.95 |  |
Number of stock options, Forfeited | Number | (333,111) | (365,749) | (60,000)
Weighted average exercise price (in Reais), Expired | R$ 94.17 |  |
Number of stock options, Expired | Number | (251,299) | (226,611) | (91,586)
Weighted average exercise price (in Reais), Outstanding at the ending | R$ 64.33 | R$ 79.47 |
Number of stock options, Outstanding at the ending | Number | 1,696,064 | 3,729,287 | 3,086,728
Weighted average exercise price (in Reais), Exercisable | R$ 86.23 |  |
Number of stock options, Exercisable | shares | 242,235 | 1,133,774 | 542,061

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