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Derivative Financial Instruments - Details of Participating Cross Currency Swap and FX Swap Contracts (Detail) | Dec. 31, 2017 TRY (₺) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 EUR (€) | Dec. 31, 2016 TRY (₺) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 EUR (€)
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Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | ₺ (15,478,000) |  |  |  |  |
Cross currency swap and fx swap contracts one [member] | 27 August 2018 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | $ 20,000,000 |  |  |  |
Cross currency swap and fx swap contracts one [member] | 02 January 2018 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  | € 39,835,000 |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 1,005,000 |  |  |  |  |
Cross currency swap and fx swap contracts two [member] | 27 August 2018 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 69,680,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 6,554,000 |  |  |  |  |
Cross currency swap and fx swap contracts two [member] | 24 January 2019 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 25,000,000 |  |  |  |
Cross currency swap and fx swap contracts two [member] | 02 January 2018 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 470,232,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  | 122,680,000 |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (2,465,000) |  |  |  |  |
Cross currency swap and fx swap contracts three [member] | 28 January 2019 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 18,000,000 |  |  |  |
Cross currency swap and fx swap contracts three [member] | 02 January 2018 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 180,023,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  | 47,250,000 |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (545,000) |  |  |  |  |
Cross currency swap and fx swap contracts three [member] | 14 December 2018 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 81,480,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  | 20,000,000 |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 9,965,000 |  |  |  |  |
Cross currency swap and fx swap contracts four [member] | 24 January 2019 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 95,550,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 72,000 |  |  |  |  |
Cross currency swap and fx swap contracts four [member] | 16 July 2019 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 14,620,000 |  |  |  |
Cross currency swap and fx swap contracts four [member] | January three two thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 141,001,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  | 36,786,000 |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (726,000) |  |  |  |  |
Cross currency swap and fx swap contracts five [member] | 28 January 2019 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 67,410,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 1,498,000 |  |  |  |  |
Cross currency swap and fx swap contracts five [member] | July twenty two two thousand nineteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 19,780,000 |  |  |  |
Cross currency swap and fx swap contracts five [member] | January four two thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 219,162,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  | 57,245,000 |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (1,043,000) |  |  |  |  |
Cross currency swap and fx swap contracts six [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 150,000,000 |  |  |  |
Cross currency swap and fx swap contracts six [member] | January five two thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 115,022,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  | 30,150,000 |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (435,000) |  |  |  |  |
Cross currency swap and fx swap contracts six [member] | 13 June 2019 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 98,625,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  | 25,000,000 |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 17,354,000 |  |  |  |  |
Cross currency swap and fx swap contracts seven [member] | 16 July 2019 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 52,164,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 4,465,000 |  |  |  |  |
Cross currency swap and fx swap contracts seven [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 100,000,000 |  |  |  |
Cross currency swap and fx swap contracts seven [member] | January ten two thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 17,204,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  | 4,500,000 |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (284,000) |  |  |  |  |
Cross currency swap and fx swap contracts eight [member] | July twenty two two thousand nineteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 69,744,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 6,996,000 |  |  |  |  |
Cross currency swap and fx swap contracts eight [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 100,000,000 |  |  |  |
Cross currency swap and fx swap contracts eight [member] | January ten two thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 15,916,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | € |  |  | 3,500,000 |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (157,000) |  |  |  |  |
Cross currency swap and fx swap contracts nine [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 70,500,000 |  |  |  |
Cross currency swap and fx swap contracts nine [member] | January twenty second two thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 91,556,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | € |  |  | 20,140,000 |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (620,000) |  |  |  |  |
Cross currency swap and fx swap contracts nine [member] | July twenty three two thousand nineteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 203,600,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  | 50,000,000 |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 27,198,000 |  |  |  |  |
Cross currency swap and fx swap contracts ten [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 435,000,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  | 50,000,000 |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 142,085,000 |  |  |  |  |
Cross currency swap and fx swap contracts ten [member] | February five thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 137,834,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | € |  |  | 30,400,000 |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (601,000) |  |  |  |  |
Currency and interest swap contracts six [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount |  |  |  | ₺ 435,000,000 |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  |  |  |  | $ 150,000,000 |
Current Derivative Financial Instruments Assets, Fair Value |  |  |  | 84,416,000 |  |
Currency and interest swap contracts seven [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount |  |  |  | 293,500,000 |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | $ |  |  |  |  | 100,000,000 |
Current Derivative Financial Instruments Assets, Fair Value |  |  |  | 51,481,000 |  |
Currency and interest swap contracts one [member] | 3 January 2017 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount |  |  |  | 18,455,000 |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  |  |  |  | € 5,000,000
Current Derivative Financial Instruments Assets, Fair Value |  |  |  | 86,000 |  |
Currency and interest swap contracts two [member] | 24 Mar 17 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount |  |  |  | 73,400,000 |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  |  |  |  | 20,000,000
Current Derivative Financial Instruments Assets, Fair Value |  |  |  | 598,000 |  |
Currency and interest swap contracts three [member] | 12 April 2021 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount |  |  |  | 824,750,000 |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  |  |  |  | 250,000,000
Current Derivative Financial Instruments Assets, Fair Value |  |  |  | 116,674,000 |  |
Currency and interest swap contracts four [member] | 12 April 2021 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount |  |  |  | 328,600,000 |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  |  |  |  | 100,000,000
Current Derivative Financial Instruments Assets, Fair Value |  |  |  | 47,949,000 |  |
Currency and interest swap contracts five [member] | 12 April 2021 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount |  |  |  | 495,000,000 |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  |  |  |  | € 150,000,000
Current Derivative Financial Instruments Assets, Fair Value |  |  |  | 81,534,000 |  |
Cross currency swap and FX swap contracts [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 961,665,000 |  |  | 382,738,000 |  |
Current Derivative Financial Instruments Liabilities, Fair Value |  |  |  | (73,000) |  |
Cross currency swap and fx swap contracts fourteen [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 194,000,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | (2,951,000) |  |  |  |  |
Cross currency swap and fx swap contracts fourteen [member] | 2 December 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 269,451,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  | $ 70,500,000 |  |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (5,010,000) |  |  |  |  |
Cross currency swap and fx swap contracts eleven [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 386,500,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | (4,645,000) |  |  |  |  |
Cross currency swap and fx swap contracts eleven [member] | February nineteen thousand eighteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 82,013,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | € |  |  | 17,860,000 |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (1,413,000) |  |  |  |  |
Cross currency swap and fx swap contracts twelve [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 293,500,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 90,071,000 |  |  |  |  |
Cross currency swap and fx swap contracts twelve [member] | March five thousand eighteen [member];; |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 1,143,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | € |  |  | 250,000 |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (25,000) |  |  |  |  |
Cross currency swap and fx swap contracts thirteen [member] | 16 September 2020 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 242,873,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 33,535,000 |  |  |  |  |
Cross currency swap and fx swap contracts thirteen [member] | December nineteen two thousand nineteen [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount | 97,997,000 |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | € |  |  | 21,500,000 |  |  |
Current Derivative Financial Instruments Liabilities, Fair Value | (2,154,000) |  |  |  |  |
Cross currency swap and fx swap contracts fifteen [member] | 3 January 2017 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount |  |  |  | 21,009,000 |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  |  |  |  | 5,960,000 |
Current Derivative Financial Instruments Liabilities, Fair Value |  |  |  | (55,000) |  |
Cross currency swap and fx swap contracts fifteen [member] | 25 October 2025 [Member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 1,650,000,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  | 500,000,000 |  |  |
Current Derivative Financial Instruments Assets, Fair Value | 627,385,000 |  |  |  |  |
Cross currency swap and fx swap contracts sixteen [member] | 3 January 2017 [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Liabilities, Buy - Notional Amount |  |  |  | 7,050,000 |  |
Current Derivative Financial Instruments Liabilities, Sell - Notional Amount | $ |  |  |  |  | $ 2,000,000 |
Current Derivative Financial Instruments Liabilities, Fair Value |  |  |  | ₺ (18,000) |  |
Cross currency swap and fx swap contracts sixteen [member] | April twenty two and two thousand twenty six [member] |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |
Current Derivative Financial Instruments Assets, Buy - Notional Amount | 275,850,000 |  |  |  |  |
Current Derivative Financial Instruments Assets, Sell - Notional Amount | € |  |  | € 60,000,000 |  |  |
Current Derivative Financial Instruments Assets, Fair Value | ₺ 1,078,000 |  |  |  |  |

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