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Financial Instruments Risks - Concentration of Deposits (Details) - ARS ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
10 largest customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 47,049,746 | $ 14,805,699
Percent of over total portfolio | 9.84% | 3.70%
50 following largest customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 40,204,538 | $ 23,185,601
Percent of over total portfolio | 8.41% | 5.79%
100 following largest customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 25,447,726 | $ 18,262,499
Percent of over total portfolio | 5.32% | 4.56%
Rest of customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 365,521,254 | $ 343,982,998
Percent of over total portfolio | 76.43% | 85.95%
Total [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 478,223,264 | $ 400,236,797
Percent of over total portfolio | 100.00% | 100.00%

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