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Derivative Financial Instruments - Summary of Financial Assets and Financial Liabilities Measured and Recognised at Fair Value (Detail) - Participating cross currency swap contracts [member] | 12 Months Ended |  |
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Dec. 31, 2018 TRY (₺) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 EUR (€) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2017 TRY (₺)
Level 3 [member] | EUR [member] | 23 October 2025 [member] |  |  |  |  |
Disclosure of financial assets and liabilities measured at fair value [line items] |  |  |  |  |
Nominal Value | € |  |  | € 500,000 |  |
Maturity Date | 23 October 2025 |  |  |  |
Fair Value | ₺ 208,462 |  |  |  | ₺ 627,385
Hedge Ratio | 1 |  |  |  |
Change in intrinsic value of outstanding hedging instruments | ₺ 359,400 |  |  |  |
Change in value of hedging item used to determine hedge effectiveness | ₺ (359,400) |  |  |  |
Level 3 [member] | EUR [member] | 22 April 2026 [member] |  |  |  |  |
Disclosure of financial assets and liabilities measured at fair value [line items] |  |  |  |  |
Nominal Value | € |  |  | € 60,000 |  |
Maturity Date | 22 April 2026 |  |  |  |
Fair Value | ₺ 64,670 |  |  |  | 1,078
Hedge Ratio | 1 |  |  |  |
Change in intrinsic value of outstanding hedging instruments | ₺ 43,128 |  |  |  |
Change in value of hedging item used to determine hedge effectiveness | ₺ (43,128) |  |  |  |
Level 3 [member] | USD [member] | 16 September 2020 [member] |  |  |  |  |
Disclosure of financial assets and liabilities measured at fair value [line items] |  |  |  |  |
Nominal Value | $ |  | $ 400,000 |  |  |
Maturity Date | 16 September 2020 |  |  |  |
Fair Value | ₺ 394,975 |  |  |  | ₺ 224,560
Hedge Ratio | 1 |  |  |  |
Change in intrinsic value of outstanding hedging instruments | ₺ 179,388 |  |  |  |
Change in value of hedging item used to determine hedge effectiveness | ₺ (179,388) |  |  |  |
Level 3 [member] | USD [member] | 10 April 2026 [member] |  |  |  |  |
Disclosure of financial assets and liabilities measured at fair value [line items] |  |  |  |  |
Nominal Value | $ |  | $ 20,000 |  |  |
Maturity Date | 10 April 2026 |  |  |  |
Fair Value | ₺ 9,234 |  |  |  |
Hedge Ratio | 1 |  |  |  |
Change in intrinsic value of outstanding hedging instruments | ₺ 13,519 |  |  |  |
Change in value of hedging item used to determine hedge effectiveness | ₺ (13,519) |  |  |  |
Level 2 [member] | Other foreign currency (RMB) [member] | 22 April 2026 [member] |  |  |  |  |
Disclosure of financial assets and liabilities measured at fair value [line items] |  |  |  |  |
Nominal Value | ¥ |  |  |  | ¥ 202,600 |
Maturity Date | 22 April 2026 |  |  |  |
Fair Value | ₺ 53,583 |  |  |  |
Hedge Ratio | 1 |  |  |  |
Change in intrinsic value of outstanding hedging instruments | ₺ 15,600 |  |  |  |
Change in value of hedging item used to determine hedge effectiveness | ₺ (15,600) |  |  |  |

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- Definition The gain (loss) on the change in fair value of the hedged item used as a basis for recognising hedge ineffectiveness. Hedge ineffectiveness is the extent to which the changes in the fair value or the cash flows of the hedging instrument are greater or less than those on the hedged item. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 24B -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24B_a_iv&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 24B -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24B_b_i&doctype=Standard -URIDate 2018-03-16 + Details
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