Income Taxes (Schedule of Income Tax Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Income Taxes [abstract]
Net income before tax	$ 58,955	$ 43,971
Statutory tax rate	27.00%	27.00%
Anticipated income tax at statutory rates	$ 15,918	$ 11,872
Non-deductible expenditures	1,326	2,507
Differences between Canadian and foreign tax rates	1,284	1,353
Change in estimate	(192)	856
Effect of change in tax rates	436	345
Inflation adjustment	(10,634)	(12,158)
Impact of foreign exchange	15,081	11,773
Changes in deferred tax assets not recognized	5,909	(2,254)
Mining taxes	4,656	3,241
Withholding taxes	3,670	2,367
Other items	(52)	273
Total tax expense	37,402	20,175
Current income tax expense	38,818	32,631
Deferred income tax (recovery)	$ (1,416)	$ (12,456)

Income Taxes [abstract].

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Tax effect from change in estimates.

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Tax effect from foreign exchange rates.

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Tax effect from inflation adjustments.

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Tax effect of change in unrecognised deferred tax assets.

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Tax effect related to mining taxes.

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Tax effect related to withholding taxes.

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The amount of profit (loss) for a period before deducting tax expense. [Refer: Profit (loss)]

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The applicable income tax rate.

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The amount of current tax expense (income) and adjustments for the current tax of prior periods. [Refer: Current tax expense (income); Adjustments for current tax of prior periods]

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The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

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The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)]

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The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that the entity does not separately disclose in the same statement or note. [Refer: Accounting profit; Applicable tax rate]

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The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to changes in the tax rate. [Refer: Accounting profit]

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The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to expenses not deductible in determining taxable profit (tax loss). [Refer: Accounting profit]

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The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to foreign tax rates. [Refer: Accounting profit]

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The product of the accounting profit multiplied by the applicable tax rate(s). [Refer: Accounting profit; Applicable tax rate]

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