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INCOME AND MINING TAXES (Tables) | 12 Months Ended
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Dec. 31, 2024
INCOME AND MINING TAXES. |
Schedule of income and mining tax (expense)/recovery | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31,
​ |  | 2024 |  | 2023 |  | 2022
United States | ​ | $ | 2,073 | ​ | $ | 971 | ​ | $ | —
Foreign | ​ | ​ | 2,231 | ​ | ​ | (4,107) | ​ | ​ | 7,662
Current tax (recovery) expense | ​ | $ | 4,304 | ​ | $ | (3,136) | ​ | $ | 7,662
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | (195) | ​ | $ | — | ​ | $ | —
Foreign | ​ | ​ | (7,157) | ​ | ​ | 36,995 | ​ | ​ | (1,856)
Deferred tax (recovery) expense | ​ | $ | (7,352) | ​ | $ | 36,995 | ​ | $ | (1,856)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | 1,878 | ​ | $ | 971 | ​ | $ | —
Foreign | ​ | ​ | (4,926) | ​ | ​ | 32,888 | ​ | ​ | 5,806
Total income and mining tax (recovery) expense | ​ | $ | (3,048) | ​ | $ | 33,859 | ​ | $ | 5,806
Schedule of net loss before income and mining tax | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31,
​ | ​ | 2024 |  | 2023 | ​ | 2022
United States | ​ | $ | 6,130 | ​ | $ | (7,702) | ​ | $ | (20,618)
Foreign | ​ | ​ | (52,869) | ​ | ​ | 74,738 | ​ | ​ | (59,670)
(Loss) income before income and mining taxes | ​ | $ | (46,739) | ​ | $ | 67,036 | ​ | $ | (80,288)
Schedule of reconciliation of tax provision at statutory U.S. Federal and State income tax rates to actual tax provision recorded in financial statements | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Year ended December 31,
Expected tax expense at |  | 2024 |  | 2023 |  | 2022
(Loss) income before income and mining taxes | ​ | $ | (46,739) | ​ | $ | 67,036 | ​ | $ | (80,288)
Statutory tax rate | ​ | ​ | 21% | ​ | ​ | 21% | ​ | ​ | 21%
US Federal and State tax (recovery) expense at statutory rate | ​ | ​ | (9,815) | ​ | ​ | 14,078 | ​ | ​ | (16,860)
Reconciling items: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity loss (income) from investments | ​ |  | 10,555 | ​ |  | 15,310 | ​ |  | (583)
Deconsolidation of McEwen Copper Inc. | ​ |  | — | ​ |  | (46,644) | ​ |  | —
Disposal of McEwen Copper Inc.'s shares | ​ | ​ | (1,531) | ​ | ​ | 6,179 | ​ | ​ | —
Deferred tax liability on investment in associate | ​ | ​ | — | ​ | ​ | 38,340 | ​ | ​ | —
Realized flow-through expenditures | ​ | ​ | 4,017 | ​ | ​ | 3,570 | ​ | ​ | 2,169
Realized flow-through premium | ​ | ​ | (2,304) | ​ | ​ | (3,423) | ​ | ​ | (2,011)
Withholding tax | ​ | ​ | 426 | ​ | ​ | 632 | ​ | ​ | —
Adjustment for foreign tax rates | ​ |  | (3,746) | ​ |  | (13,769) | ​ |  | (8,384)
Permanent differences | ​ |  | (2,014) | ​ |  | 9,909 | ​ |  | 9,353
Foreign exchange on translation of books | ​ | ​ | (4,157) | ​ | ​ | 42 | ​ | ​ | 4,308
Losses expired | ​ | ​ | 3,330 | ​ | ​ | 8,282 | ​ | ​ | 1,876
Proceeds received from sale of NSR | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 8,072
Adjustments in relation to prior years | ​ | ​ | 367 | ​ | ​ | (629) | ​ | ​ | 7,760
Current and deferred mining tax liabilities | ​ | ​ | 2,283 | ​ | ​ | 1,455 | ​ | ​ | 116
Movement in valuation allowance | ​ | ​ | (505) | ​ | ​ | 821 | ​ | ​ | (10)
Other | ​ | ​ | 46 | ​ | ​ | (294) | ​ | ​ | —
Income and mining tax (recovery) expense | ​ | $ | (3,048) | ​ | $ | 33,859 | ​ | $ | 5,806
Schedule of tax effects of temporary differences that give rise to significant portions of deferred tax assets and deferred tax liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31,
​ |  | 2024 |  | 2023
Deferred tax assets: | ​ | ​ | ​ | ​ | ​ | ​
Net operating loss carryforward | ​ | $ | 61,135 | ​ | $ | 57,983
Mineral properties | ​ |  | 52,228 | ​ |  | 52,471
Other temporary differences | ​ |  | 22,259 | ​ |  | 21,857
Total gross deferred tax assets | ​ |  | 135,622 | ​ |  | 132,311
Less: valuation allowance | ​ |  | (132,396) | ​ |  | (130,002)
Net deferred tax assets | ​ | $ | 3,226 | ​ | $ | 2,309
Deferred tax liabilities: | ​ | ​ | ​ | ​ | ​ | ​
Acquired mineral property interests | ​ | ​ | (3,928) | ​ | ​ | (2,895)
Other taxable temporary differences | ​ |  | (35,928) | ​ |  | (39,986)
Total deferred tax liabilities | ​ | $ | (39,856) | ​ | $ | (42,881)
Deferred income and mining tax liability | ​ | $ | (36,630) | ​ | $ | (40,572)
Summary of changes in valuation allowance |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Balance at
For the year ended December 31, |  | beginning of year | ​ | Additions (1) |  | Deductions (2) |  | ​ | end of year
2024 | ​ | $ | 130,002 | ​ | $ | 2,780 | ​ | $ | (386) | ​ | $ | 132,396
2023 | ​ | ​ | 149,342 | ​ | ​ | 3,391 | ​ | ​ | (22,731) | ​ | ​ | 130,002
2022 | ​ | ​ | 149,921 | ​ | ​ | 6,600 | ​ | ​ | (7,179) | ​ | ​ | 149,342
​
(1) | The additions to valuation allowance mainly result from the Company and its subsidiaries incurring losses and exploration expenses for tax purposes that do not meet the more-likely-than-not criterion for recognition of deferred tax assets.
(2) | The reductions to valuation allowance mainly result from release of valuation allowance in Canada and Argentina.
Summary of losses that can be applied against future taxable profit | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Country |  | Type of Loss |  | Amount |  | Expiry Period
United States (1) | ​ | Net operating losses | ​ | $ | 199,400 | ​ | 2027-Unlimited
Mexico | ​ | Net operating losses | ​ | ​ | 54,163 | ​ | 2025-2034
Canada (1) | ​ | Net operating losses | ​ | ​ | 11,380 | ​ | 2026-2042
Argentina (1) | ​ | Net operating losses | ​ | ​ | 503 | ​ | 2024-2028
​
(1) | The losses in the United States, Canada, and Argentina are part of multiple consolidating groups and, therefore, may be restricted in use to specific projects.

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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