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Accounts receivable from card issuers - Summary of Accounts Receivables (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of Trade receivables [line items]      
Allowance for expected credit losses R$ (80,418) R$ (32,463) R$ (23,656)
Accounts receivable from card issuers 19,286,590 16,307,155  
Accounts receivable from card issuers      
Disclosure of Trade receivables [line items]      
Accounts receivable from card issuers 18,865,658 16,031,948  
Accounts receivable from other acquirers 436,035 287,972  
Allowance for expected credit losses (15,103) (12,765) R$ (7,236)
Accounts receivable from card issuers R$ 19,286,590 R$ 16,307,155