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27 Right-of-use asset and lease liability (Details 5)
R$ in Thousands
Dec. 31, 2020
BRL (R$)
Disclosure of quantitative information about right-of-use assets [line items]  
Commitments from leases and rents R$ 203,320
Less than 1 year [member]  
Disclosure of quantitative information about right-of-use assets [line items]  
Commitments from leases and rents 7,328
1 to 5 Years [member]  
Disclosure of quantitative information about right-of-use assets [line items]  
Commitments from leases and rents 31,843
Over 5 Years [member]  
Disclosure of quantitative information about right-of-use assets [line items]  
Commitments from leases and rents R$ 164,149