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Schedule of insurance coverage (Details) R$ in Thousands	12 Months Ended
Schedule of insurance coverage (Details) R$ in Thousands	Dec. 31, 2021 BRL (R$)
Operational Risks [member]
IfrsStatementLineItems [Line Items]
Coverage	Coverage against damage to buildings, facilities, inventory, machinery and equipment, loss of profits.
Amount of coverage	R$ 3,298,543
Carriage of Goods [member]
IfrsStatementLineItems [Line Items]
Coverage	Coverage of goods in transit and in inventories.
Amount of coverage	R$ 792,114
Civil Responsibility [member]
IfrsStatementLineItems [Line Items]
Coverage	Third party complaints.
Amount of coverage	R$ 446,440