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Deferred Tax Assets and Liabilities - Summary of Movement in Temporary Differences (Detail) - TRY (₺) ₺ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Disclosure of temporary difference, unused tax losses and unused tax credits [abstract] |  |
Opening balance | ₺ (406,905) | ₺ (64,822)
Income statement charge | (133,791) | (222,497)
Tax charge relating to components of other comprehensive income | (6,449) | (7,066)
Prior year corporate tax base differences | (2,729) | (109,640)
Exchange differences | (5,188) | (2,880)
Closing balance, net | ₺ (555,062) | ₺ (406,905)

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