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Financial assets at fair value through profit or loss - Additional Information (Detail) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 ARS ($) | Dec. 31, 2020 $ / shares | Jul. 22, 2019 ARS ($)
Financial assets at fair value through profit or loss [line items] |  |  |  |
Proceeds from equity investments disposal |  | $ 3,392,851,000 |  |
Equity investments disposal payments term | unpaid balance shall be deferred over the following 5 (five) years and settled as follows: (i) 30% of that amount shall be paid in pesos, adjusted by Reference Stabilization Coefficient -an index based on CPI- (CER) at an annual nominal rate of 15% and (ii) 70% in US Dollars at an annual nominal rate of 10 %. |  |  |
Profit on equity securities disposal |  | 5,202,018,000 |  |
Prisma Medios de Pago S.A. [Member] |  |  |  |
Financial assets at fair value through profit or loss [line items] |  |  |  |
Equity instruments number of shares transferred | shares | 2,344,064 |  |  |
Equity instruments shares transferred nominal value | $ / shares |  |  | $ 1 |
Equity investments disposal consideration | $ 78,265,273 |  |  |
Proceeds from equity investments disposal | $ 46,457,210 |  |  |
Equity securities at cost |  |  |  | $ 76,947,895,330
Profit on equity securities disposal |  | $ 5,202,018,000 |  |

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