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Asset retirement obligations (Tables) | 12 Months Ended
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Dec. 31, 2022
Disclosure of Asset Retirement Obligations [abstract] |
Summary of asset retirement obligations |
| Turkiye | Canada | Greece | Romania |  | Total
At January 1, 2022 | $ | 54,594 |  | $ | 15,838 |  | $ | 51,535 |  | $ | 13,488 |  |  | $ | 135,455 |
Accretion during the year (1) | 965 |  | 144 |  | 871 |  | 262 |  |  | 2,242 |
Revisions to estimate | 161 |  | (1,767) |  | (9,266) |  | (3,439) |  |  | (14,311) |
Settlements | (1,199) |  | — |  | (2,003) |  | — |  |  | (3,202) |
Reclassified to liabilities associated with assets held for sale | — |  | — |  | — |  | (10,311) |  |  | (10,311) |
At December 31, 2022 | $ | 54,521 |  | $ | 14,215 |  | $ | 41,137 |  | $ | — |  |  | $ | 109,873 |
Less: Current portion | — |  | — |  | (3,980) |  | — |  |  | (3,980) |
Long term portion | $ | 54,521 |  | $ | 14,215 |  | $ | 37,157 |  | $ | — |  |  | $ | 105,893 |
Estimated undiscounted amount | $ | 92,673 |  | $ | 20,022 |  | $ | 72,973 |  | $ | — |  |  | $ | 185,668 |
| Turkiye | Canada | Greece | Romania |  | Total
At January 1, 2021 | $ | 44,816 |  | $ | 12,961 |  | $ | 51,940 |  | $ | 1,661 |  |  | $ | 111,378 |
Acquired during the year | — |  | 3,300 |  | — |  | — |  |  | 3,300 |
Accretion during the year (1) | 608 |  | 131 |  | 649 |  | 24 |  |  | 1,412 |
Revisions to estimate | 10,209 |  | (554) |  | 220 |  | 11,803 |  |  | 21,678 |
Settlements | (1,039) |  | — |  | (1,274) |  | — |  |  | (2,313) |
At December 31, 2021 | $ | 54,594 |  | $ | 15,838 |  | $ | 51,535 |  | $ | 13,488 |  |  | $ | 135,455 |
Less: Current portion | — |  | — |  | (4,088) |  | — |  |  | (4,088) |
Long term portion | $ | 54,594 |  | $ | 15,838 |  | $ | 47,447 |  | $ | 13,488 |  |  | $ | 131,367 |
Estimated undiscounted amount | $ | 71,404 |  | $ | 18,416 |  | $ | 68,704 |  | $ | 19,062 |  |  | $ | 177,586 |
(1) Accretion expense for the Romanian reporting segment has been reclassified to loss from discontinued operations for the years ended December 31, 2022 and 2021 (Note 6 (a)).
Summary of present value of estimated future net cash outflows | The provision is calculated as the present value of estimated future net cash outflows based on the following key assumptions:
| Turkiye | Canada | Greece | Romania |
| % | % | % | % |
At December 31, 2022 |  |  |  |  |
Inflation rate | 2.3 to 3.1 | 2.6 | 2.4 to 2.8 | 2.5 |
Discount rate | 4.0 to 4.1 | 3.9 | 4.1 to 4.4 | 4.1 |
At December 31, 2021 |  |  |  |  |
Inflation rate | 1.3 to 1.9 | 1.5 | 0.7 to 1.9 | 1.9 |
Discount rate | 1.3 to 1.9 | 1.5 | 0.7 to 1.9 | 1.9 |

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