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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities $ 128,832 $ 117,461
Increase (decrease) in deferred tax liability (asset) (47,700)  
Closure and decommissioning costs    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities (27,742) (26,482)
Tax losses, resource pools and mining tax credits    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities (92,928) (140,608)
Deductible Mexican mining taxes    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities (4,682) (3,286)
Accounts payable and accrued liabilities    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities (22,119) (17,737)
Trade and other receivables    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities (29,163) (13,290)
Provision for doubtful debts and inventory adjustments    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities 28,153 21,354
Short-term investments    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities 7,941 15,649
Mineral properties, plant, and equipment    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities 245,126 274,483
Estimated sales provisions    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities 30,466 14,028
Other temporary differences and provisions    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities (6,220) (6,650)
Tax Losses    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities (26,400) (43,800)
Resource pools    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets/liabilities $ (66,500) $ (96,800)