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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
Beginning balance R$ (605,940) R$ (503,848)
(Additions) Reversals (12,799) (12,137)
Write-offs 15,685 19,451
Exchange rate variation (35,529) (109,406)
Ending balance R$ (638,583) R$ (605,940)