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Income Tax - Deferred income tax assets and liabilities (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | $ (8,587,709) | $ (43,154,394)
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | 77,980,566 | 36,789,231
Other comprehensive income | (84,922,739) | (2,222,546)
Deferred tax assets | 73,060,615 | 90,831,479
Offsetting | (70,214,802) | (86,097,600)
Net deferred tax assets | 2,845,813 | 4,733,879
Deferred tax liabilities | (88,590,497) | (99,419,188)
Offsetting | 70,214,802 | 86,097,600
Net deferred tax liabilities | (18,375,695) | (13,321,588)
Allowance for loans losses [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | 37,261,464 | 38,937,416
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | (6,884,814) | (1,675,952)
Deferred tax assets | 30,376,650 | 37,261,464
Provisions [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | 39,282,173 | 24,996,082
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | (3,676,895) | 14,286,091
Deferred tax assets | 35,605,278 | 39,282,173
Loan Commissions [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | 3,802,371 | 3,080,653
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | 742,644 | 721,718
Deferred tax assets | 4,545,015 | 3,802,371
Expenses capitalized for tax purpose [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | (15,067,625) | (13,266,124)
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | (1,880,788) | (1,801,501)
Deferred tax liabilities | (16,948,413) | (15,067,625)
Property and equipment [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | (40,519,489) | (85,554,395)
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | (1,228,645) | 45,034,906
Deferred tax liabilities | (41,748,134) | (40,519,489)
Investments in debt securities and equity instruments [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | (43,724,517) | (34,759,493)
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | 98,753,254 | (6,742,478)
Other comprehensive income | (84,922,739) | (2,222,546)
Deferred tax liabilities | (29,894,002) | (43,724,517)
Derivatives [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes |  | 79,271
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss |  | (79,271)
Deferred tax assets |  | 0
Inflation adjustment [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | 7,738,678 | 22,402,235
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | (6,463,673) | (14,663,557)
Deferred tax assets | 1,275,005 | 7,738,678
Unused tax losses [member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | 2,746,793 | 925,268
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | (1,488,126) | 1,821,525
Deferred tax assets | 1,258,667 | 2,746,793
Others [Member] |  |
Disclosure of deferred taxes [Line Items] |  |
Deferred Taxes | (107,557) | 4,693
Changes Recognized In [Abstract] |  |
Consolidated statement of profit or loss | 107,609 | (112,250)
Deferred tax assets |  | 0
Deferred tax liabilities | $ 52 | $ (107,557)

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