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Income and Mining Taxes - Valuation Allowance (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Income Tax Examination [Line Items] |  |
Valuation allowance | $ 444,989 | $ 430,053
United States |  |
Income Tax Examination [Line Items] |  |
Valuation allowance | 245,899 | 228,942
Canada |  |
Income Tax Examination [Line Items] |  |
Valuation allowance | 178,310 | 165,561
Mexico |  |
Income Tax Examination [Line Items] |  |
Valuation allowance | 441 | 13,277
New Zealand |  |
Income Tax Examination [Line Items] |  |
Valuation allowance | 19,993 | 21,822
Other jurisdictions |  |
Income Tax Examination [Line Items] |  |
Valuation allowance | $ 346 | $ 451

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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