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Contingent Transactions - Summary of Contingent Transactions (Detail) - ARS ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of contingent liabilities [line items]    
Less: Allowance for ECL $ (353,085) $ (35,018)
Contingent transactions, total 224,707,297 147,752,444
Undrawn commitments of credit cards and checking accounts [Member]    
Disclosure of contingent liabilities [line items]    
Contingent transactions, total 221,916,659 143,727,073
Guarantees granted [member]    
Disclosure of contingent liabilities [line items]    
Contingent transactions, total 2,271,180 1,936,233
Overdraft and unused agreed commitments [member]    
Disclosure of contingent liabilities [line items]    
Contingent transactions, total 872,543 782,793
Letters of credit [member]    
Disclosure of contingent liabilities [line items]    
Contingent transactions, total   1,341,363
Gross carrying amount [member]    
Disclosure of contingent liabilities [line items]    
Contingent transactions, total $ 225,060,382 $ 147,787,462