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Net Gain From Measurement Of Financial Instruments At Fair Value - Summary of Net gain from Measurement of Financial Instruments (Detail) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | $ 13,978,694 | $ 10,799,758 | $ 2,641,829
Gain from government securities [member] |  |  |
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | 10,076,885 | 2,570,385 | 1,145,974
Gain from private securities [member] |  |  |
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | 847,819 | 1,133,530 | 682,391
Gain from derivative financial instruments Forward transactions [member] |  |  |
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | 75,950 | 2,051,535 | 522,385
Gain from derivative financial instruments Put options [member] |  |  |
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | 417,029 | 769,490 |
Gain from other financial assets [member] |  |  |
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | 2,658 | 246,356 | 524,281
Gain from equity instruments at fair value through profit or loss [member] |  |  |
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | 2,523,585 | 4,530,493 | 27,976
Gain / (Loss) from sales or derecognition of financial assets at fair value [Member] |  |  |
Disclosure of financial instruments at fair value through profit or loss [line items] |  |  |
Gains losses on financial assets at fair value through profit or loss | $ 34,768 | $ (502,031) | $ (261,178)

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- Definition Disclosure of financial instruments at fair value through profit or loss. + References No definition available. + Details
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- Definition The gains (losses) on financial assets at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 20 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_20_a_i&doctype=Standard -URIDate 2020-01-01 + Details
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