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Financial Instruments Risks - Concentration of Deposits (Details) - ARS ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
10 largest customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 10,875,308 | $ 23,525,681
Percent of over total portfolio | 3.70% | 5.89%
50 following largest customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 17,030,642 | $ 23,926,818
Percent of over total portfolio | 5.79% | 5.99%
100 following largest customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 13,414,450 | $ 16,221,565
Percent of over total portfolio | 4.56% | 4.06%
Rest of customers [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 252,667,647 | $ 335,534,953
Percent of over total portfolio | 85.95% | 84.06%
Total [member] |  |
Concentration of deposits [line items] |  |
Debt balance | $ 293,988,047 | $ 399,209,017
Percent of over total portfolio | 100.00% | 100.00%

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