XML 182 R135.htm IDEA: XBRL DOCUMENT v3.21.1
Segment information - Summary of Operating Segments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Earnings and loss information      
Revenue $ 1,026,685 $ 617,823  
Production costs 445,183 334,839  
Depreciation and amortization 246,651 153,118  
Earnings (loss) from mine operations 334,851 129,866  
Other significant items of income and expense      
Reversal of impairment 0 (96,914)  
Write-down of assets 38,660 6,298  
Exploration and evaluation expenses 12,693 14,643  
Income tax expense (recovery) 79,134 39,771  
Capital expenditure information      
Additions to property, plant and equipment during the period 200,474 181,103  
Capitalized interest 0 3,848  
Information about assets and liabilities      
Property, plant and equipment 3,998,493 4,088,202 $ 3,988,476
Goodwill 92,591 92,591  
Information about assets and liabilities 4,091,084 4,180,793  
Debt, including current portion 501,132 479,732  
Turkey      
Earnings and loss information      
Revenue 588,188 352,385  
Production costs 201,895 137,080  
Depreciation and amortization 111,403 63,949  
Earnings (loss) from mine operations 274,890 151,356  
Other significant items of income and expense      
Reversal of impairment   (85,224)  
Write-down of assets 209 105  
Exploration and evaluation expenses 2,192 2,593  
Income tax expense (recovery) 65,815 57,518  
Capital expenditure information      
Additions to property, plant and equipment during the period 88,894 62,887  
Capitalized interest   0  
Information about assets and liabilities      
Property, plant and equipment 762,162 791,354  
Goodwill 0 0  
Information about assets and liabilities 762,162 791,354  
Debt, including current portion 0 0  
Canada      
Earnings and loss information      
Revenue 257,267 125,282  
Production costs 78,309 50,733  
Depreciation and amortization 83,968 47,659  
Earnings (loss) from mine operations 94,990 26,890  
Other significant items of income and expense      
Reversal of impairment   0  
Write-down of assets 0 0  
Exploration and evaluation expenses 2,978 1,905  
Income tax expense (recovery) 23,122 (2,727)  
Capital expenditure information      
Additions to property, plant and equipment during the period 59,832 75,328  
Capitalized interest   3,848  
Information about assets and liabilities      
Property, plant and equipment 579,399 606,274  
Goodwill 92,591 92,591  
Information about assets and liabilities 671,990 698,865  
Debt, including current portion 0 0  
Greece      
Earnings and loss information      
Revenue 181,230 140,156  
Production costs 164,979 147,026  
Depreciation and amortization 51,280 41,510  
Earnings (loss) from mine operations (35,029) (48,380)  
Other significant items of income and expense      
Reversal of impairment   0  
Write-down of assets 40,030 6,177  
Exploration and evaluation expenses 592 3,223  
Income tax expense (recovery) (8,763) (14,305)  
Capital expenditure information      
Additions to property, plant and equipment during the period 42,638 39,349  
Capitalized interest   0  
Information about assets and liabilities      
Property, plant and equipment 2,027,612 2,067,719  
Goodwill 0 0  
Information about assets and liabilities 2,027,612 2,067,719  
Debt, including current portion 0 0  
Romania      
Earnings and loss information      
Revenue 0 0  
Production costs 0 0  
Depreciation and amortization 0 0  
Earnings (loss) from mine operations 0 0  
Other significant items of income and expense      
Reversal of impairment   0  
Write-down of assets (1,579) 16  
Exploration and evaluation expenses 4,987 4,887  
Income tax expense (recovery) (6,081) (1,110)  
Capital expenditure information      
Additions to property, plant and equipment during the period 6 24  
Capitalized interest   0  
Information about assets and liabilities      
Property, plant and equipment 414,118 415,150  
Goodwill 0 0  
Information about assets and liabilities 414,118 415,150  
Debt, including current portion 0 0  
Brazil      
Earnings and loss information      
Revenue 0 0  
Production costs 0 0  
Depreciation and amortization 0 0  
Earnings (loss) 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 199 381  
Income tax expense (recovery) 5,041 249  
Capital expenditure information      
Additions to property, plant and equipment during the period 2,050 3,476  
Capitalized interest   0  
Information about assets and liabilities      
Property, plant and equipment 205,432 204,419  
Goodwill 0 0  
Information about assets and liabilities 205,432 204,419  
Debt, including current portion 0 0  
Other      
Earnings and loss information      
Revenue 0 0  
Production costs 0 0  
Depreciation and amortization 0 0  
Earnings (loss) from mine operations 0 0  
Other significant items of income and expense      
Reversal of impairment   0  
Write-down of assets 0 0  
Exploration and evaluation expenses 1,745 1,654  
Income tax expense (recovery) 0 146  
Capital expenditure information      
Additions to property, plant and equipment during the period 7,054 39  
Capitalized interest   0  
Information about assets and liabilities      
Property, plant and equipment 9,770 3,286  
Goodwill 0 0  
Information about assets and liabilities 9,770 3,286  
Debt, including current portion $ 501,132 $ 479,732