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Financial assets at fair value through profit or loss - Additional Information (Detail) |  | 12 Months Ended |  |  |
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Mar. 18, 2022 ARS ($) | Dec. 31, 2021 USD ($) shares | Dec. 31, 2019 ARS ($) | Dec. 31, 2021 $ / shares | Oct. 01, 2021 | Jul. 22, 2019 ARS ($)
Financial assets at fair value through profit or loss [line items] |  |  |  |  |  |
Proceeds from equity investments disposal |  |  | $ 5,121,224,000 |  |  |
Equity investments disposal payments term |  | unpaid balance was deferred over the following 5 (five) years and settled as follows: (i) 30% of that amount to be paid in pesos, adjusted by the 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 %. |  |  |  |
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
Percentage of Capital Stock to be Sold |  |  |  |  | 49.00% |
Prisma Medios de Pago S.A. [Member] | Disposal of major subsidiary [member] |  |  |  |  |  |
Financial assets at fair value through profit or loss [line items] |  |  |  |  |  |
Equity investments disposal consideration | $ 40,038,121,840 |  |  |  |  |

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