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Subsequent Events - Additional Information (Detail) ₺ in Thousands, ₴ in Thousands, € in Thousands, $ in Thousands |  |  |  |  |  | 12 Months Ended |
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Mar. 20, 2018 USD ($) | Mar. 06, 2018 UAH (₴) | Mar. 05, 2018 EUR (€) | Feb. 15, 2018 TRY (₺) Installments | Jan. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 TRY (₺) | Mar. 01, 2018 TRY (₺) | Mar. 01, 2018 UAH (₴)
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
Payment of license |  |  |  |  |  |  | ₺ 1,522,615 |  |
Lifecell [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  | 100.00% | 100.00% |  |
Events after reporting period [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
Dividends payable |  |  |  | ₺ 1,239,500 |  |  |  |  |
Percentage of distributable net income |  |  |  | 63.00% |  |  |  |  |
Number of dividend payment installments | Installments |  |  |  | 3 |  |  |  |  |
Events after reporting period [member] | Azerbaijan International Telecom LLC [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
Equity interest percentage |  |  | 51.30% |  |  |  |  |  |
Consideration transferred | € |  |  | € 221,700 |  |  |  |  |  |
Events after reporting period [member] | 2600 MHz frequency tender [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
License period |  |  |  |  | 15 years |  |  |  |
Payment of license |  |  |  |  |  |  |  | ₺ 129,155 | ₴ 909,251
Events after reporting period [member] | Fintur [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
Ownership percentage | 41.45% |  |  |  |  |  |  |  |
Events after reporting period [member] | Gurtel [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
Ownership percentage | 99.99% |  |  |  |  |  |  |  |
Events after reporting period [member] | Geocell LLC [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
Percentage of share transfer | 100.00% |  |  |  |  |  |  |  |
Share transfer consideration | $ | $ 153,000 |  |  |  |  |  |  |  |
Events after reporting period [member] | Lifecell [member] | 1800 MHz frequency tender [member] |  |  |  |  |  |  |  |  |
Subsequent event1 [line items] |  |  |  |  |  |  |  |  |
License period |  | 15 years |  |  |  |  |  |  |
License fee bid amount | ₴ |  | ₴ 795,000 |  |  |  |  |  |  |

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