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Derivative Financial Instruments - Summary of Notional Amounts and Fair Values of Derivative Financial Instruments (Detail) $ in Thousands, $ in Thousands | Dec. 31, 2020 ARS ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 ARS ($) | Dec. 31, 2019 USD ($)
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Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, fair Value | $ 989,478 |  | $ 838,493 |
Derivative liabilities, fair Value | 230 |  | 1,046,556 |
Derivatives held for trading [member] | Currency swap contract [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative liabilities,notional Value |  | $ 1,755 |  | $ 73,920
Derivatives held for trading [member] | Currency swap contract [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, notional Value |  | 1,580 |  | $ 73,920
Derivatives held for trading [member] | Put options 1 [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, notional Value |  | $ 8,910,878 | 8,910,878 |
Derivatives held for trading [member] | Put options 2 [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, notional Value | 8,910,878 |  | 8,910,878 |
At fair value [member] | Put options 1 [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, fair Value |  |  | 538,643 |
At fair value [member] | Derivatives held for trading [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, fair Value | 989,478 |  | 838,493 |
Derivative liabilities, fair Value | 230 |  | 1,046,556 |
At fair value [member] | Derivatives held for trading [member] | Currency swap contract [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative liabilities, fair Value | 230 |  | 1,046,556 |
At fair value [member] | Derivatives held for trading [member] | Currency swap contract [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, fair Value | 7,232 |  | 69,003 |
At fair value [member] | Derivatives held for trading [member] | Put options 1 [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, fair Value | 687,572 |  |  |
At fair value [member] | Derivatives held for trading [member] | Put options 2 [member] |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Derivative assets, fair Value | $ 294,674 |  | $ 230,847 |

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