Derivative Financial Instruments - Summary of Fair Value of Financial Assets and Financial Liabilities (Detail) - TRY (₺) ₺ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about financial instruments [line items]
Fair value assets	₺ 709,617	₺ 961,665
Fair value liabilities	131,097	17,724
Fair value assets	730,924	0
Level 2 [member] \| Currency swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Fair value assets	₺ 656,302
Fair value liabilities		(4,675)
Valuation Techniques	Present value of the estimated future cash flows based on observable yield curves and end period FX rates
Level 2 [member] \| Currency swap contracts [member] \| Held for trading [member]
Disclosure of detailed information about financial instruments [line items]
Fair value assets	₺ 602,719
Fair value liabilities		(4,675)
Level 2 [member] \| Currency swap contracts [member] \| Derivatives assets used for hedging [member]
Disclosure of detailed information about financial instruments [line items]
Fair value assets	₺ 53,583
Level 2 [member] \| Currency forward contracts [member]
Disclosure of detailed information about financial instruments [line items]
Fair value liabilities		(2,246)
Valuation Techniques	Forward exchange rates at the balance sheet date
Level 2 [member] \| Currency forward contracts [member] \| Held for trading [member]
Disclosure of detailed information about financial instruments [line items]
Fair value liabilities		(2,246)
Level 3 [member] \| Participating cross currency swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Fair value assets	₺ 653,142	950,862
Valuation Techniques	Pricing models based on discounted cash Present value of the estimated future cash flows based on unobservable yield curves and end period FX rates
Level 3 [member] \| Participating cross currency swap contracts [member] \| Held for trading [member]
Disclosure of detailed information about financial instruments [line items]
Fair value assets		₺ 950,862
Fair value liabilities	₺ (24,199)
Level 3 [member] \| Participating cross currency swap contracts [member] \| Derivatives assets used for hedging [member]
Disclosure of detailed information about financial instruments [line items]
Fair value assets	₺ 677,341

The amount of derivative financial assets held for hedging. [Refer: Derivative financial assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

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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

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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]

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The description of the valuation techniques (for example, the market approach, cost approach and income approach) used for the fair value measurement of the entity's own equity instruments. [Refer: Valuation techniques [member]; Cost approach [member]; Income approach [member]; Market approach [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2018-01-01
-Paragraph 93
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=13&date=2018-03-01&anchor=para_93_d&doctype=Standard
-URIDate 2018-03-16

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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