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Commitments and Contingencies - Investigation Initiated by ICTA on Subscription Numbers and Radio Utilization and Usage Fees - Additional Information (Detail) - TRY (₺) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Disclosure of commitments and contingencies [Line Items] |  |
Provision for litigation settlement amount | ₺ 417,668,000 | ₺ 0
Investigation initiated by ICTA on subscription numbers and radio utilization and usage fees [member] |  |
Disclosure of commitments and contingencies [Line Items] |  |
Administrative fines on radio utilization | ₺ 11,240,000 |
Early payment Discount on Administrative fines | 25.00% |
Litigation principal and interest amount | ₺ 156,637,000 |
Litigation settlement amount | 164,469,000 |
Provision for litigation settlement amount | ₺ 157,446,000 | ₺ 0

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- Details
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