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Subsequent events (Details)
R$ in Millions
 12 Months Ended
Jan. 25, 2022
state
customer
Dec. 31, 2021
BRL (R$)
Urba Desenvolvimento Urbano S.A., Urba 4 Loteamentos Ltda. and Urba 5 Loteamentos Ltda    
Disclosure of non-adjusting events after reporting period [line items]    
Amounts payable | R$   R$ 104.0
Acquisition | USEND    
Disclosure of non-adjusting events after reporting period [line items]    
Percentage of voting interest 100.00%  
Years of experience in services 16 years  
Minimum number of states that the licenses can be applied for services | state 40  
Minimum base of customers | customer 150,000  
New long term agreement with MasterCard    
Disclosure of non-adjusting events after reporting period [line items]    
Period agreed for increasing the benefits of master card   10 years