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v3.20.1

Segment information - Summary of Operating Segments (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Earnings and loss information |  |  |
Revenue | $ 617,823 | $ 459,016 |
Production costs | 334,839 | 269,445 |
Depreciation and amortization | 153,118 | 105,732 |
Earnings from mine operations | 129,866 | 83,839 |
Other significant items of income and expense |  |  |
Reversal of impairment | (96,914) | 447,808 |
Write-down of assets | 6,298 | 447,808 |
Exploration and evaluation expenses | 14,643 | 33,842 |
Income tax expense (recovery) | 39,771 | (86,498) |
Capital expenditure information |  |  |
Additions to property, plant and equipment during the period | 181,103 | 328,153 |
Capitalized interest | 3,848 | 36,750 |
Information about assets and liabilities |  |  |
Property, plant and equipment | 4,088,202 | 3,988,476 | $ 4,227,397
Goodwill | 92,591 | 92,591 |
Information about assets and liabilities | 4,180,793 | 4,081,067 |
Debt, including current portion | 479,732 | 595,977 |
Turkey |  |  |
Earnings and loss information |  |  |
Revenue | 352,385 | 348,528 |
Production costs | 137,080 | 174,081 |
Depreciation and amortization | 63,949 | 75,854 |
Earnings from mine operations | 151,356 | 98,593 |
Other significant items of income and expense |  |  |
Reversal of impairment | (85,224) |  |
Write-down of assets | 105 | 117,570 |
Exploration and evaluation expenses | 2,593 | 840 |
Income tax expense (recovery) | 57,518 | 45,238 |
Capital expenditure information |  |  |
Additions to property, plant and equipment during the period | 62,887 | 68,737 |
Capitalized interest | 0 | 0 |
Information about assets and liabilities |  |  |
Property, plant and equipment | 791,354 | 721,449 |
Goodwill | 0 | 0 |
Information about assets and liabilities | 791,354 | 721,449 |
Debt, including current portion | 0 | 0 |
Canada |  |  |
Earnings and loss information |  |  |
Revenue | 125,282 | 0 |
Production costs | 50,733 | 0 |
Depreciation and amortization | 47,659 | 0 |
Earnings from mine operations | 26,890 | 0 |
Other significant items of income and expense |  |  |
Reversal of impairment | 0 |  |
Write-down of assets | 0 | 0 |
Exploration and evaluation expenses | 1,905 | 103 |
Income tax expense (recovery) | (2,727) | (3,415) |
Capital expenditure information |  |  |
Additions to property, plant and equipment during the period | 75,328 | 189,867 |
Capitalized interest | 3,848 | 13,160 |
Information about assets and liabilities |  |  |
Property, plant and equipment | 606,274 | 582,895 |
Goodwill | 92,591 | 92,591 |
Information about assets and liabilities | 698,865 | 675,486 |
Debt, including current portion | 0 | 0 |
Greece |  |  |
Earnings and loss information |  |  |
Revenue | 140,156 | 110,488 |
Production costs | 147,026 | 95,364 |
Depreciation and amortization | 41,510 | 29,424 |
Earnings from mine operations | (48,380) | (14,300) |
Other significant items of income and expense |  |  |
Reversal of impairment | 0 |  |
Write-down of assets | 6,177 | 330,238 |
Exploration and evaluation expenses | 3,223 | 15,947 |
Income tax expense (recovery) | (14,305) | (129,213) |
Capital expenditure information |  |  |
Additions to property, plant and equipment during the period | 39,349 | 61,716 |
Capitalized interest | 0 | 23,590 |
Information about assets and liabilities |  |  |
Property, plant and equipment | 2,067,719 | 2,063,798 |
Goodwill | 0 | 0 |
Information about assets and liabilities | 2,067,719 | 2,063,798 |
Debt, including current portion | 0 | 0 |
Romania |  |  |
Earnings and loss information |  |  |
Revenue | 0 | 0 |
Production costs | 0 | 0 |
Depreciation and amortization | 0 | 0 |
Earnings from mine operations | 0 | 0 |
Other significant items of income and expense |  |  |
Reversal of impairment | 0 |  |
Write-down of assets | 16 | 0 |
Exploration and evaluation expenses | 4,887 | 13,499 |
Income tax expense (recovery) | (1,110) | (2,716) |
Capital expenditure information |  |  |
Additions to property, plant and equipment during the period | 24 | 419 |
Capitalized interest | 0 | 0 |
Information about assets and liabilities |  |  |
Property, plant and equipment | 415,150 | 416,197 |
Goodwill | 0 | 0 |
Information about assets and liabilities | 415,150 | 416,197 |
Debt, including current portion | 0 | 0 |
Brazil |  |  |
Earnings and loss information |  |  |
Revenue | 0 | 0 |
Production costs | 0 | 0 |
Depreciation and amortization | 0 | 0 |
Earnings from mine operations | 0 | 0 |
Other significant items of income and expense |  |  |
Reversal of impairment | (11,690) |  |
Write-down of assets | 0 | 0 |
Exploration and evaluation expenses | 381 | 1,728 |
Income tax expense (recovery) | 249 | 3,608 |
Capital expenditure information |  |  |
Additions to property, plant and equipment during the period | 3,476 | 6,612 |
Capitalized interest | 0 | 0 |
Information about assets and liabilities |  |  |
Property, plant and equipment | 204,419 | 203,075 |
Goodwill | 0 | 0 |
Information about assets and liabilities | 204,419 | 203,075 |
Debt, including current portion | 0 | 0 |
Other |  |  |
Earnings and loss information |  |  |
Revenue | 0 | 0 |
Production costs | 0 | 0 |
Depreciation and amortization | 0 | 454 |
Earnings from mine operations | 0 | (454) |
Other significant items of income and expense |  |  |
Reversal of impairment | 0 |  |
Write-down of assets | 0 | 0 |
Exploration and evaluation expenses | 1,654 | 1,725 |
Income tax expense (recovery) | 146 | 0 |
Capital expenditure information |  |  |
Additions to property, plant and equipment during the period | 39 | 802 |
Capitalized interest | 0 | 0 |
Information about assets and liabilities |  |  |
Property, plant and equipment | 3,286 | 1,062 |
Goodwill | 0 | 0 |
Information about assets and liabilities | 3,286 | 1,062 |
Debt, including current portion | $ 479,732 | $ 595,977 |

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