INCOME TAX - Net position of deferred tax (Details) - ARS ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets / (liabilities)
Deferred tax assets	$ 3,315,885	$ 2,275,175
Deferred tax liability	(42,005)	(689,268)
Deferred tax assets	3,315,885	2,275,175
Deferred tax liability	(42,005)	(689,268)
Total Net Assets by deferred Tax	3,273,880	1,585,907	$ 1,253,359
Later than one year [member]
Deferred tax assets / (liabilities)
Deferred tax assets	2,864,345	2,063,254
Deferred tax assets	1,687,447	2,063,254
Deferred tax liability	(65,140)
Up to 1 year [member]
Deferred tax assets / (liabilities)
Deferred tax assets	451,540	211,921
Deferred tax liability	(42,005)	(689,268)
Deferred tax assets	1,628,438	211,921
Deferred tax liability	$ 23,135	$ (689,268)

The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]]

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]]

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The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

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- Definition

The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of deferred tax liabilities net of deferred tax assets, when the absolute amount of deferred tax liabilities is greater than the absolute amount of deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

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Disclosure of deferred tax assets and liabilities.

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