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Financial Instruments - Additional Information (Detail) ₺ in Thousands, $ in Thousands |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 26, 2017 TRY (₺) | Dec. 31, 2017 TRY (₺) | Dec. 31, 2016 TRY (₺) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |
Strengthening percentage |  | 10.00% | 10.00% |  |
Weakening percentage |  | 10.00% | 10.00% |  |
Change in interest rates |  | 1.00% |  | 1.00% |
Debt instrument amount |  | ₺ 12,536,149 | ₺ 9,781,162 |  |
Debt securities issued [member] |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |
Nominal value of debt securities issued |  |  | 500,000 | $ 500,000 | $ 500,000
Debt instrument amount |  | 1,875,521 | 1,922,656 |  |
Debt securities issued [member] | Fair Value [Member] |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |
Debt instrument amount |  | 2,063,972 | 1,921,199 |  |
TL [member] |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |
Payment last installment of 4.5G license payable amounting to TL | ₺ 1,534,702 |  |  |  |
TL [member] | Debt securities issued [member] |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |
Debt instrument amount |  |  | 238,956 |  |
Trade receivables, due from related parties and receivables from financial services [member] |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |
Trade receivables, due from related parties and receivables from financial services past due but not impaired |  | 1,473,385 | 439,112 |  |
Collaterals held |  | ₺ 339,543 | ₺ 156,647 |  |

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_25&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35H&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35I&doctype=Standard -URIDate 2017-03-09 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35M&doctype=Standard -URIDate 2017-03-09 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35N&doctype=Standard -URIDate 2017-03-09 + Details
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