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Expenses by Nature - Summary of Expenses by Cost of Sales (Parenthetical) (Detail) - TRY (₺) ₺ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Summary of expenses by nature cost of sales [abstract] |  |
Depreciation and amortization expenses related to financial services | ₺ 6,343 | ₺ 1,677

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- Definition Depreciation and amortization expense related to financial services. + References No definition available. + Details
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Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Summary of expenses by nature cost of sales [abstract] + References No definition available. + Details
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Namespace Prefix: | tkc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration