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Salaries and social charges (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Disclosure Of Salaries And Benefits [abstract]    
Profit sharing R$ 20,653 R$ 15,237
Salaries payable 4,378 2,758
Social charges 8,421 5,102
Payroll accruals 14,601 9,807
Payroll taxes (LTIP) 23,816  
Other 2,067 1,365
Total R$ 73,936 R$ 34,269