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Labor and social obligations (Details 1) - Modified Plan [member] - R S Us [Member]
R$ / shares in Units, R$ in Thousands
12 Months Ended
Dec. 31, 2023
BRL (R$)
R$ / shares
IfrsStatementLineItems [Line Items]  
Expected volatility 0.00%
Share price at the measurement date | R$ / shares R$ 75
Model used Binomial
Weighted average fair value at the measurement date | R$ / shares R$ 0.12
Bottom of range [member]  
IfrsStatementLineItems [Line Items]  
Strike price at the measurement date | R$ R$ 95
Expected volatility 45.00%
Risk-free interest rate 10.00%
Expected life of stock options 1 year
Top of range [member]  
IfrsStatementLineItems [Line Items]  
Strike price at the measurement date | R$ R$ 160
Expected volatility 48.00%
Risk-free interest rate 12.00%
Expected life of stock options 5 years