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FAIR VALUES - Fair value of equity instruments changes in other comprehensive income (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | $ 44,070 | $ 18,049
Loss/Income through OCI | 3,967 | (41,967)
Additions | 59,230 | 67,988
Ending balance of fair value of equity instruments | 107,267 | 44,070
Mercado Abierto Electrnico S.A. |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 6,958 | 9,473
Loss/Income through OCI | 38,788 | (2,515)
Ending balance of fair value of equity instruments | 45,746 | 6,958
Seguro de Depsitos S.A |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 2,436 | 3,316
Loss/Income through OCI | 4,598 | (880)
Ending balance of fair value of equity instruments | 7,034 | 2,436
Compensador Electrnica S.A. |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 1,387 | 1,888
Loss/Income through OCI | 9,944 | (501)
Ending balance of fair value of equity instruments | 11,331 | 1,387
Provincanje S.A. |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 411 | 562
Loss/Income through OCI | 4,018 | (151)
Ending balance of fair value of equity instruments | 4,429 | 411
Cuyo Aval Sociedad de Garanta Recproca |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 2,168 | 2,156
Loss/Income through OCI | (774) | 12
Ending balance of fair value of equity instruments | 1,394 | 2,168
Argencontrol S.A. |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 189 | 257
Loss/Income through OCI | (32) | (68)
Ending balance of fair value of equity instruments | 157 | 189
Los Grobo Sociedad de Garanta Recproca |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 110 | 143
Loss/Income through OCI | (109) | (33)
Ending balance of fair value of equity instruments | 1 | 110
IEBA S.A. |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 92 | 125
Loss/Income through OCI | (31) | (33)
Ending balance of fair value of equity instruments | 61 | 92
Play Digital S.A. |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 30,119 |
Loss/Income through OCI | (52,392) | (37,869)
Additions | 59,230 | 67,988
Ending balance of fair value of equity instruments | 36,957 | 30,119
Otras Sociedades de Garanta Recproca |  |
Disclosure of fair value measurement of assets and liability [line items] |  |
Beginning balance of fair value of equity instruments | 200 | 129
Loss/Income through OCI | (43) | 71
Ending balance of fair value of equity instruments | $ 157 | $ 200

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- Definition The amount of investments in equity instruments that the entity has designated at fair value through other comprehensive income. [Refer: At fair value [member]; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 11A -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_11A_c&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 8 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_8_h&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The gains (losses) recognised in other comprehensive income on financial assets measured at fair value through other comprehensive income applying paragraph 4.1.2A of IFRS 9, net of tax, before reclassification adjustments. [Refer: Financial assets measured at fair value through other comprehensive income; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 91 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_91_a&doctype=Standard -URIDate 2021-03-24 + Details
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