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Financial assets - Nominal and fairvalue of financial assets (Details) ₺ in Thousands, € in Thousands, $ in Thousands | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2022 TRY (₺) | Dec. 31, 2022 EUR (€) | Dec. 31, 2021 TRY (₺) | Dec. 31, 2021 EUR (€)
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Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Financial assets, at fair value |  |  | ₺ 1,850,830 |  | ₺ 2,345,458 |
Currency protected time deposits |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Financial assets, at fair value |  |  | 4,034,897 |  |  |
16 February 2026 | EUR | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | € |  |  |  | € 24,000 |  | € 3,277
Financial assets, at fair value |  |  | 472,022 |  | 51,494 |
Fair Value Maturity Date | 16 February 2026 | 16 February 2026 |  |  |  |
8 July 2027 | EUR | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | € |  |  |  | 15,000 |  | € 24,951
Financial assets, at fair value |  |  | 279,082 |  | 356,258 |
Fair Value Maturity Date | 8 July 2027 | 8 July 2027 |  |  |  |
11 April 2023 | EUR | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | € |  |  |  | € 5,000 |  |
Financial assets, at fair value |  |  | 99,975 |  |  |
Fair Value Maturity Date | 11 April 2023 |  |  |  |  |
31 March 2025 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ | $ 3,700 |  |  |  |  |
Financial assets, at fair value |  |  | 73,314 |  |  |
Fair Value Maturity Date | 31 March 2025 |  |  |  |  |
14 July 2023 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ | $ 21,000 | $ 34,497 |  |  |  |
Financial assets, at fair value |  |  | 391,211 |  | 469,839 |
Fair Value Maturity Date | 14 July 2023 | 14 July 2023 |  |  |  |
25 March 2027 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ | $ 18,000 | $ 30,341 |  |  |  |
Financial assets, at fair value |  |  | 308,358 |  | 378,645 |
Fair Value Maturity Date | 25 March 2027 | 25 March 2027 |  |  |  |
13 November 2025 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ | $ 5,000 |  |  |  |  |
Financial assets, at fair value |  |  | 97,785 |  |  |
Fair Value Maturity Date | 13 November 2025 |  |  |  |  |
25 January 2023 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ | $ 3,000 |  |  |  |  |
Financial assets, at fair value |  |  | 55,835 |  |  |
Fair Value Maturity Date | 25 January 2023 |  |  |  |  |
10 August 2024 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ | $ 1,000 | $ 1,636 |  |  |  |
Financial assets, at fair value |  |  | 18,540 |  | 22,142 |
Fair Value Maturity Date | 10 August 2024 | 10 August 2024 |  |  |  |
Indefinite | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ | $ 50,000 |  |  |  |  |
Financial assets, at fair value |  |  | 54,708 |  |  |
Fair Value Maturity Date | Indefinite |  |  |  |  |
2 March 2022 | TL | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  |  |  | 39,937 |
Financial assets, at fair value |  |  |  |  | 42,025 |
Fair Value Maturity Date |  | 2 March 2022 |  |  |  |
2 March 2022 | TL | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  |  |  | 39,602 |
Financial assets, at fair value |  |  |  |  | 42,025 |
Fair Value Maturity Date |  | 2 March 2022 |  |  |  |
14 October 2025 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ |  | $ 32,565 |  |  |  |
Financial assets, at fair value |  |  |  |  | 412,244 |
Fair Value Maturity Date |  | 14 October 2025 |  |  |  |
26 January 2026 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ |  | $ 3,561 |  |  |  |
Financial assets, at fair value |  |  |  |  | 45,330 |
Fair Value Maturity Date |  | 26 January 2026 |  |  |  |
22 June 2026 | USD | Listed debt securities |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount | $ |  | $ 41,067 |  |  |  |
Financial assets, at fair value |  |  |  |  | ₺ 525,456 |
Fair Value Maturity Date |  | 22 June 2026 |  |  |  |
10 May 2023 | TL | Currency protected time deposits |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  | 949,475 |  |  |
Financial assets, at fair value |  |  | 1,236,256 |  |  |
Fair Value Maturity Date | 10 May 2023 |  |  |  |  |
27 February 2023 | TL | Currency protected time deposits |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  | 704,109 |  |  |
Financial assets, at fair value |  |  | 950,130 |  |  |
Fair Value Maturity Date | 27 February 2023 |  |  |  |  |
15 August 2023 | TL | Currency protected time deposits |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  | 701,033 |  |  |
Financial assets, at fair value |  |  | 820,390 |  |  |
Fair Value Maturity Date | 15 August 2023 |  |  |  |  |
16 August 2023 | TL | Currency protected time deposits |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  | 436,793 |  |  |
Financial assets, at fair value |  |  | 511,377 |  |  |
Fair Value Maturity Date | 16 August 2023 |  |  |  |  |
11 May 2023 | TL | Currency protected time deposits |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  | 230,364 |  |  |
Financial assets, at fair value |  |  | 299,793 |  |  |
Fair Value Maturity Date | 11 May 2023 |  |  |  |  |
2 October 2023 | TL | Currency protected time deposits |  |  |  |  |  |
Financial assets |  |  |  |  |  |
Notional amount |  |  | 185,454 |  |  |
Financial assets, at fair value |  |  | ₺ 216,951 |  |  |
Fair Value Maturity Date | 2 October 2023 |  |  |  |  |

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