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Capital Stock - Additional information (Detail) - ARS ($) | Dec. 20, 2018 | Oct. 17, 2018 | Aug. 08, 2018 | Dec. 31, 2020 | Dec. 31, 2018
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Disclosure of classes of share capital [line items] |  |  |  |  |
Capital Stock |  |  |  | $ 639,413,000 |
Maximum amount of investment |  |  | $ 5,000,000,000 |  |
Percentage of maximum number of share in capital stock | 1.00% |  | 5.00% |  |
Treasury share value |  |  |  |  | $ 10,426,286,000
Maximum amount of investment | $ 900,000,000 |  |  |  |
Class B Ordinary Shares [member] |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Treasury share acquired |  | $ 6,774,019,000 | $ 21,463,005,000 |  |
Treasury share value |  | 2,206,503,000 | 7,747,151,000 |  |
Nominal value of treasury shares |  | $ 995,786,000 | $ 3,113,925,000 |  |

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