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Related Parties - Summary of Time Deposits, Bank Borrowings, Debt Securities Issued, Lease Liabilities at related parties (Detail) ₺ in Thousands, € in Thousands, $ in Thousands | 12 Months Ended |  |
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Dec. 31, 2024 TRY (₺) | Dec. 31, 2023 TRY (₺) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 EUR (€)
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ 20,591,470 | ₺ 43,407,567 |  |  |  |
Banks - Time deposits | Gross Carrying Amount |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ 25,646,258 | ₺ 45,290,997 |  |  |  |
Banks - Time deposits | Gross Carrying Amount | USD | January 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | $ |  |  | $ 233,940 |  |  |
Effective interest rate of financial assets, related party | 2.10% |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ 8,241,594 |  |  |  |  |
Banks - Time deposits | Gross Carrying Amount | USD | January - February 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | $ |  |  |  |  | $ 342,372 |
Effective interest rate of financial assets, related party |  | 4.40% |  |  |  |
Financial assets (liabilities) with related parties |  | ₺ 14,569,081 |  |  |  |
Banks - Time deposits | Gross Carrying Amount | EUR | January 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | € |  |  |  | € 196,070 |  |
Effective interest rate of financial assets, related party | 2.30% |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ 7,210,579 |  |  |  |  |
Banks - Time deposits | Gross Carrying Amount | EUR | January - February 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | € |  |  |  |  |  | € 455,757
Effective interest rate of financial assets, related party |  | 3.70% |  |  |  |
Financial assets (liabilities) with related parties |  | ₺ 21,482,276 |  |  |  |
Banks - Time deposits | Gross Carrying Amount | TRY | January - May 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | ₺ 9,828,355 |  |  |  |  |
Effective interest rate of financial assets, related party | 47.40% |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ 10,194,085 |  |  |  |  |
Banks - Time deposits | Gross Carrying Amount | TRY | January 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions |  | ₺ 6,376,563 |  |  |  |
Effective interest rate of financial assets, related party |  | 40.70% |  |  |  |
Financial assets (liabilities) with related parties |  | ₺ 9,239,640 |  |  |  |
Bank borrowings |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Financial assets (liabilities) with related parties | (9,652,466) | (10,199,160) |  |  |  |
Bank borrowings | TRY | January 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | 680,000 |  |  |  |  |
Financial assets (liabilities) with related parties | (682,648) |  |  |  |  |
Bank borrowings | TRY | January - June 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | 7,297,000 |  |  |  |  |
Financial assets (liabilities) with related parties | (8,663,215) |  |  |  |  |
Bank borrowings | TRY | January 2025 - August 2027 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | 285,000 |  |  |  |  |
Financial assets (liabilities) with related parties | (294,044) |  |  |  |  |
Bank borrowings | TRY | April 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | 11,981 |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ (12,559) |  |  |  |  |
Bank borrowings | TRY | February - October 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions |  | 4,673,500 |  |  |  |
Financial assets (liabilities) with related parties |  | (7,167,928) |  |  |  |
Bank borrowings | TRY | January - September 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions |  | 553,450 |  |  |  |
Financial assets (liabilities) with related parties |  | (801,896) |  |  |  |
Bank borrowings | TRY | January 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions |  | 1,349,880 |  |  |  |
Financial assets (liabilities) with related parties |  | (1,958,601) |  |  |  |
Bank borrowings | TRY | August 2024 - April 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions |  | 72,206 |  |  |  |
Financial assets (liabilities) with related parties |  | (111,574) |  |  |  |
Bank borrowings | TRY | February 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions |  | ₺ 104,860 |  |  |  |
Effective interest rate of financial liabilities, related party |  | 34.80% |  |  |  |
Financial assets (liabilities) with related parties |  | ₺ (159,161) |  |  |  |
Bank borrowings | TRY | Minimum | January 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 47.10% |  |  |  |  |
Bank borrowings | TRY | Minimum | January - June 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 44.00% |  |  |  |  |
Bank borrowings | TRY | Minimum | January 2025 - August 2027 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 53.10% |  |  |  |  |
Bank borrowings | TRY | Minimum | April 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 28.80% |  |  |  |  |
Bank borrowings | TRY | Minimum | February - October 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 12.20% |  |  |  |
Bank borrowings | TRY | Minimum | January - September 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 19.80% |  |  |  |
Bank borrowings | TRY | Minimum | January 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 41.70% |  |  |  |
Bank borrowings | TRY | Minimum | August 2024 - April 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 28.80% |  |  |  |
Bank borrowings | TRY | Maximum | January 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 47.60% |  |  |  |  |
Bank borrowings | TRY | Maximum | January - June 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 56.00% |  |  |  |  |
Bank borrowings | TRY | Maximum | January 2025 - August 2027 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 58.00% |  |  |  |  |
Bank borrowings | TRY | Maximum | April 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 29.30% |  |  |  |  |
Bank borrowings | TRY | Maximum | February - October 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 54.40% |  |  |  |
Bank borrowings | TRY | Maximum | January - September 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 55.20% |  |  |  |
Bank borrowings | TRY | Maximum | January 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 42.30% |  |  |  |
Bank borrowings | TRY | Maximum | August 2024 - April 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 49.80% |  |  |  |
Debt securities issued |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ (925,603) | ₺ (1,381,581) |  |  |  |
Debt securities issued | TRY | March - May 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions | 900,000 |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ (925,603) |  |  |  |  |
Debt securities issued | TRY | January 2024 - March 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Nominal amount, related party transactions |  | 900,000 |  |  |  |
Financial assets (liabilities) with related parties |  | ₺ (1,381,581) |  |  |  |
Debt securities issued | TRY | Minimum | March - May 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 42.00% |  |  |  |  |
Debt securities issued | TRY | Minimum | January 2024 - March 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 39.00% |  |  |  |
Debt securities issued | TRY | Maximum | March - May 2025 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 44.50% |  |  |  |  |
Debt securities issued | TRY | Maximum | January 2024 - March 2024 |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 44.50% |  |  |  |
Lease liabilities |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ (111,972) | ₺ (210,834) |  |  |  |
Lease liabilities | EUR |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Financial assets (liabilities) with related parties |  | ₺ (88,435) |  |  |  |
Lease liabilities | EUR | Minimum |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 0.30% |  |  |  |
Lease liabilities | EUR | Maximum |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party |  | 3.70% |  |  |  |
Lease liabilities | TRY |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Financial assets (liabilities) with related parties | ₺ (111,972) | ₺ (122,399) |  |  |  |
Lease liabilities | TRY | Minimum |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 12.50% | 12.50% |  |  |  |
Lease liabilities | TRY | Maximum |  |  |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Effective interest rate of financial liabilities, related party | 62.00% | 55.25% |  |  |  |

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