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Loss Allowance for Expected Credit Losses On Credit Exposures Not Measured at Fair Value Through Profit or Loss - Summary of Exposure to Credit Risk (Detail) - ARS ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 15, 2021 | Dec. 31, 2019
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 361,992,565 | $ 403,541,419 |  |
Less: Allowance for ECL | (9,631,477) | (14,985,662) |  |
Loans and receivables | $ 352,361,088 | $ 388,555,757 |  |
Percentage of maximum exposure to credit risk | 100.00% | 100.00% |  |
Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD |  | 33.01% |  |
Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 86,234,118 | $ 112,138,243 |  |
Percentage of maximum exposure to credit risk | 100.00% | 100.00% |  |
Percentage of credit quality of loans | 100.00% | 100.00% |  |
Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 275,758,447 | $ 291,403,176 |  |
Percentage of maximum exposure to credit risk | 100.00% | 100.00% |  |
High grade [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 0.00% | 0.00% |  |
High grade [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 3.50% | 3.50% |  |
High grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 61,307,742 |  |  |
Percentage of credit quality of loans | 71.09% |  |  |
Standard grade [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 3.51% | 3.51% |  |
Standard grade [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 7.00% | 7.00% |  |
Standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 17,588,621 |  |  |
Percentage of credit quality of loans | 20.40% |  |  |
Sub-standard grade [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 7.01% | 7.01% |  |
Sub-standard grade [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 33.00% | 33.00% |  |
Sub-standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 5,417,182 |  |  |
Percentage of credit quality of loans | 6.28% |  |  |
Impaired [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 100.00% | 100.00% |  |
Impaired [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 763,587 |  |  | $ 2,358,726
Percentage of maximum exposure to credit risk |  | 2.10% |  |
Percentage of credit quality of loans | 0.89% |  |  |
Impaired [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 2,535,142 | $ 2,214,602 |  |
Percentage of maximum exposure to credit risk | 0.92% | 0.76% |  |
Range PD | 100.00% | 100.00% |  |
Performing [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 350,275,528 | $ 388,063,124 |  |
Percentage of maximum exposure to credit risk | 96.76% | 96.17% |  |
Performing [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 84,313,545 |  |  | 106,779,437
Percentage of maximum exposure to credit risk | 97.77% | 95.22% |  |
Performing [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 265,961,983 | $ 281,283,687 |  |
Percentage of maximum exposure to credit risk | 96.45% | 96.53% |  |
Performing [member] | High grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  |  |  | 97,031,368
Percentage of maximum exposure to credit risk |  | 86.53% |  |
Performing [member] | High grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 226,637,100 | $ 210,437,163 |  |
Percentage of maximum exposure to credit risk | 82.19% | 72.22% |  |
Performing [member] | High grade [member] | Expected credit losses collectively assessed [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 0.00% | 0.00% |  |
Performing [member] | High grade [member] | Expected credit losses collectively assessed [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 3.50% | 3.50% |  |
Performing [member] | Standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  |  |  | 6,334,747
Percentage of maximum exposure to credit risk |  | 5.65% |  |
Performing [member] | Standard grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 27,452,171 | $ 44,672,202 |  |
Percentage of maximum exposure to credit risk | 9.95% | 15.33% |  |
Performing [member] | Standard grade [member] | Expected credit losses collectively assessed [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 3.51% | 3.51% |  |
Performing [member] | Standard grade [member] | Expected credit losses collectively assessed [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 7.00% | 7.00% |  |
Performing [member] | Sub-standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  |  |  | 3,413,322
Percentage of maximum exposure to credit risk |  | 3.04% |  |
Performing [member] | Sub-standard grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 11,872,712 | $ 26,174,322 |  |
Percentage of maximum exposure to credit risk | 4.31% | 8.98% |  |
Performing [member] | Sub-standard grade [member] | Expected credit losses collectively assessed [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 7.01% | 7.01% |  |
Performing [member] | Sub-standard grade [member] | Expected credit losses collectively assessed [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 33.00% | 33.00% |  |
Past due but not impaired [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 8,418,308 | $ 10,904,967 |  |
Percentage of maximum exposure to credit risk | 2.33% | 2.70% |  |
Past due but not impaired [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 33.01% | 33.01% |  |
Past due but not impaired [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 99.99% | 99.99% |  |
Past due but not impaired [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 1,156,986 |  |  | $ 3,000,080
Percentage of maximum exposure to credit risk | 1.34% | 2.68% |  |
Past due but not impaired [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 7,261,322 | $ 7,904,887 |  |
Percentage of maximum exposure to credit risk | 2.63% | 2.71% |  |
Past due but not impaired [member] | Expected credit losses collectively assessed [member] | Bottom of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 33.01% | 33.01% |  |
Past due but not impaired [member] | Expected credit losses collectively assessed [member] | Top of range [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Range PD | 99.99% | 99.99% |  |
Impairments stage 1 [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 344,792,718 | $ 375,527,554 |  |
Percentage of maximum exposure to credit risk | 95.25% | 93.06% |  |
Impairments stage 1 [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 80,734,484 | $ 103,143,331 |  |
Percentage of maximum exposure to credit risk | 93.62% | 91.98% |  |
Impairments stage 1 [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 264,058,234 | $ 272,384,223 |  |
Percentage of maximum exposure to credit risk | 95.76% | 93.47% |  |
Impairments stage 1 [member] | High grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 60,875,079 |  |  |
Impairments stage 1 [member] | Standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 16,332,244 |  |  |
Impairments stage 1 [member] | Sub-standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 3,527,161 |  |  |
Impairments stage 1 [member] | Performing [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 341,628,847 | $ 374,333,529 |  |
Impairments stage 1 [member] | Performing [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 80,734,484 | 102,580,832 |  |
Impairments stage 1 [member] | Performing [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 260,894,363 | 271,752,697 |  |
Impairments stage 1 [member] | Performing [member] | High grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | 97,030,142 |  |
Impairments stage 1 [member] | Performing [member] | High grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 226,240,102 | 210,325,192 |  |
Impairments stage 1 [member] | Performing [member] | Standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | 4,139,043 |  |
Impairments stage 1 [member] | Performing [member] | Standard grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 26,195,254 | 43,961,570 |  |
Impairments stage 1 [member] | Performing [member] | Sub-standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | 1,411,647 |  |
Impairments stage 1 [member] | Performing [member] | Sub-standard grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 8,459,007 | 17,465,935 |  |
Impairments stage 1 [member] | Past due but not impaired [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 3,163,871 | 1,194,025 |  |
Impairments stage 1 [member] | Past due but not impaired [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | 562,499 |  |
Impairments stage 1 [member] | Past due but not impaired [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 3,163,871 | 631,526 |  |
Impairments stage 2 [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 13,901,118 | $ 23,440,537 |  |
Percentage of maximum exposure to credit risk | 3.84% | 5.81% |  |
Impairments stage 2 [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 4,736,047 | $ 6,636,186 |  |
Percentage of maximum exposure to credit risk | 5.49% | 5.92% |  |
Impairments stage 2 [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 9,165,071 | $ 16,804,351 |  |
Percentage of maximum exposure to credit risk | 3.32% | 5.77% |  |
Impairments stage 2 [member] | High grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 432,663 |  |  |
Impairments stage 2 [member] | Standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 1,256,377 |  |  |
Impairments stage 2 [member] | Sub-standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 1,890,021 |  |  |
Impairments stage 2 [member] | Performing [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 8,646,681 | $ 13,729,595 |  |
Impairments stage 2 [member] | Performing [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 3,579,061 | 4,198,605 |  |
Impairments stage 2 [member] | Performing [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 5,067,620 | 9,530,990 |  |
Impairments stage 2 [member] | Performing [member] | High grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | 1,226 |  |
Impairments stage 2 [member] | Performing [member] | High grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 396,998 | 111,971 |  |
Impairments stage 2 [member] | Performing [member] | Standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | 2,195,704 |  |
Impairments stage 2 [member] | Performing [member] | Standard grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 1,256,917 | 710,632 |  |
Impairments stage 2 [member] | Performing [member] | Sub-standard grade [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | 2,001,675 |  |
Impairments stage 2 [member] | Performing [member] | Sub-standard grade [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 3,413,705 | 8,708,387 |  |
Impairments stage 2 [member] | Past due but not impaired [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 5,254,437 | 9,710,942 |  |
Impairments stage 2 [member] | Past due but not impaired [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | 1,156,986 | 2,437,581 |  |
Impairments stage 2 [member] | Past due but not impaired [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 4,097,451 | 7,273,361 |  |
Impairments Stage 3 [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | $ 4,573,328 | $ 3,298,729 |
Percentage of maximum exposure to credit risk | 0.91% | 1.13% |  |
Impairments Stage 3 [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 763,587 | $ 2,358,726 |  |
Percentage of maximum exposure to credit risk | 0.89% | 2.10% |  |
Impairments Stage 3 [member] | Expected credit losses collectively assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 2,535,142 | $ 2,214,602 |  |
Percentage of maximum exposure to credit risk | 0.92% | 0.76% |  |
Impairments Stage 3 [member] | Impaired [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk |  | $ 4,573,328 |  |
Impairments Stage 3 [member] | Impaired [member] | Expected credit losses individually assessed [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Maximum exposure to credit risk | $ 763,587 | $ 2,358,726 |  |
Commercial [member] |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Percentage of credit quality of loans | 100.00% | 100.00% |  |

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