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Measurement of Expected Credit Loss - Summary Of Loan Portfolio And Related Impact On Contractual Cash Flows (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2020
ARS ($)
UVA-indexed mortgage loans [member]  
Disclosure Of Loan Portfolio And related Impact On Contractual Cash Flows [Line Items]  
Affected portfolio $ 16,568,485
Loss from changes in contractual cash flows (451,177) [1]
UVA-indexed pledge loans [member]  
Disclosure Of Loan Portfolio And related Impact On Contractual Cash Flows [Line Items]  
Affected portfolio 338,749
Loss from changes in contractual cash flows $ (7,118) [1]
[1] Recognized in Net Interest Income.