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Derivative Financial Instruments - Summary of Cross Currency Swap Contracts (Detail) - Participating cross currency swap contracts [member] - TRY (₺) ₺ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Disclosure of detailed information about financial instruments [line items] |  |
Opening balance | ₺ 950,862 | ₺ 382,054
Cash flow effect | (612,466) |
Fair value gains recognized in profit or loss | 314,746 | 568,808
Closing balance | ₺ 653,142 | ₺ 950,862

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- Details
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