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Schedule of allowance for doubtful accounts (Details) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Balances at the beginning of the period R$ (32,980) R$ (14,763) R$ (7,537)
Additions (47,819) (32,081) (15,040)
Write-offs 35,786 13,864 7,814
Balances at the end of the period R$ (45,013) R$ (32,980) R$ (14,763)