Derivative financial instruments - Summary of fair value of derivative financial instruments (Detail) - TRY (₺) ₺ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Derivative financial instrument
Derivative financial assets, Held for trading	₺ 1,728,869	₺ 2,571,151
Derivative financial assets, Net interest accrual income/ expense	50,410	103,126
Derivative financial assets	1,779,279	2,674,277
Derivative financial liabilities, Held for trading	(1,532,645)	(656,192)
Derivative financial liabilities, Net interest accrual income/ expense		7,664
Derivative financial liabilities	₺ (1,532,645)	₺ (648,528)

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

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- Definition

The amount of derivative financial assets held for trading. [Refer: Derivative financial assets; Financial assets at fair value through profit or loss, classified as held for trading]

+ References

+ Details

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- Definition

The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

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- Definition

The amount of derivative financial liabilities held for trading. [Refer: Derivative financial liabilities; Financial liabilities at fair value through profit or loss that meet definition of held for trading]

+ References

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- Definition

Derivative financial instruments [abstract]

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No definition available.

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- Definition

Interest expense accrued in current derivative financial instruments assets.

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No definition available.

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- Definition

Interest expense accrued in current derivative financial instruments liabilities.

+ References

No definition available.

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