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Schedule of cash and cash equivalents (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Cash and bank deposits R$ 88,487 R$ 57,729    
Cash equivalents 660,075 987,313    
 Cash and cash equivalents R$ 748,562 R$ 1,045,042 R$ 943,209 R$ 62,260