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Income Taxes - Reconciliation of effective income tax rate (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of income tax [Abstract]    
Earnings (loss) before taxes and non-controlling interest $ (300,945) $ 244,991
Statutory Canadian income tax rate (percent) 27.00% 27.00%
Income tax expense (recovery) based on above rates $ (81,255) $ 66,148
Unrecognized tax benefit on termination fee related to the Yamana acquisition 39,750 0
Increase (decrease) due to:    
Non-deductible expenditures 7,465 6,192
Foreign tax rate differences (11,717) 15,969
Change in net deferred tax assets not recognized (1) 22,296 20,574
Derecognition of deferred tax assets previously recognized (2) 50,356 0
Effect of other taxes paid (mining and withholding) 15,658 25,846
Effect of foreign exchange on tax expense (21,541) 14,337
Non-taxable impact of foreign exchange 6,310 (1,203)
Change in non-deductible portion of reclamation liabilities 12,157 2,380
Other (361) (3,814)
Income taxes expense $ (39,118) $ (146,429)
Effective income tax rate (percent) (13.00%) 59.77%