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Income taxes (Tables) | 12 Months Ended
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Dec. 31, 2023
Income taxes |
Schedule of components of income tax expense and benefits | ​
​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022
​ |  | $ |  | $
Current income tax | ​ | ​ | ​ | ​
Expense for the year | ​ | 127 | ​ | —
Current income tax expense | ​ | 127 | ​ | —
​ | ​ | ​ | ​ | ​
Deferred income tax | ​ |  | ​ |
Origination and reversal of temporary differences | ​ | (52,653) | ​ | (63,178)
Change in unrecognized deductible temporary differences | ​ | 26,844 | ​ | 63,051
Other | ​ | 3,165 | ​ | 1,833
Deferred income tax (expense) recovery | ​ | (22,644) | ​ | 1,706
Income tax (expense) recovery | ​ | (22,517) | ​ | 1,706
Schedule of reconciliation of income | ​
​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
​ | ​ | $ | ​ | $
Loss before income taxes | ​ | (204,390) |  | (190,754)
Income tax provision calculated using the Canadian federal and provincial statutory income tax rate | ​ | (54,163) |  | (50,550)
Increase in income taxes resulting from: | ​ | ​ |  |
Non-deductible expenses, net | ​ | 1,563 |  | (291)
Non-taxable (non-deductible) portion of capital losses, net | ​ | (1,120) |  | (8,202)
Share of equity associate loss | ​ | 81 | ​ | 78
Change in unrecognized deferred tax assets | ​ | 26,844 |  | 63,051
Differences in foreign statutory tax rates | ​ | 2,164 |  | (3,970)
Deferred premium on flow-through shares | ​ | — |  | 810
Effect of flow-through shares renunciation | ​ | — |  | (1,052)
Other | ​ | 2,114 |  | 1,832
Total income tax expense (recovery) | ​ | (22,517) |  | 1,706
Schedule of deferred tax assets and liabilities | ​
​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
​ |  | $ |  | $
Deferred tax assets: | ​ |  | ​ |
Non-capital losses | ​ | — | ​ | 929
Deferred and restricted share units | ​ | — | ​ | 29
Other | ​ | — | ​ | 8,209
Deferred tax assets | ​ | — | ​ | 9,167
​ | ​ | ​ | ​ | ​
Deferred tax liabilities: | ​ |  | ​ |
Property, Plant & Equipment | ​ | — | ​ | (3,873)
Stream Interest | ​ | — | ​ | (28,823)
Other | ​ | — | ​ | (45)
Deferred tax liability | ​ | — | ​ | (32,741)
Deferred tax liability, net | ​ | — | ​ | (23,574)
Schedule of movement for deferred tax assets and deferred tax liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Statement | ​ | Other | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Dec. 31, | ​ | of income | ​ | comprehensive | ​ | Translation | ​ | Dec. 31, | ​ | ​
​ |  | 2022 | ​ | (loss) | ​ | income |  | adjustment |  | 2023 | ​ | ​
​ |  | $ |  | $ |  | $ |  | $ |  | $ | ​ | ​
Deferred tax assets: | ​ |  |  |  | ​ | ​ |  |  | ​ | ​ | ​ | ​
Non-capital losses | ​ | 929 | ​ | (933) | ​ | — |  | 4 | ​ | — | ​ | ​
Deferred and restricted share units | ​ | 29 | ​ | (29) | ​ | — | ​ | — | ​ | — | ​ | ​
Other assets | ​ | 8,209 | ​ | (8,248) | ​ | — |  | 39 | ​ | — | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Investments | ​ | — | ​ | (1,010) | ​ | 1,010 | ​ | — | ​ | — | ​ | ​
Stream interests | ​ | (28,823) | ​ | 28,929 | ​ | — | ​ | (106) | ​ | — | ​ | ​
Property, Plant, & Equipment | ​ | (3,873) | ​ | 3,890 | ​ | — | ​ | (17) | ​ | — | ​ | ​
Other Liabilities | ​ | (45) | ​ | 45 | ​ | — |  | — | ​ | — | ​ | ​
​ | ​ | (23,574) | ​ | 22,644 | ​ | 1,010 |  | (80) | ​ | — | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Statement | ​ | Other | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Dec. 31, | ​ | Of income | ​ | comprehensive | ​ | Translation | ​ | Business | ​ | Dec. 31,
​ |  | 2021 |  | (loss) |  | income | ​ | adjustment |  | combination | ​ | 2022
​ |  | $ |  | $ |  | $ |  | $ |  | $ |  | $
Deferred tax assets: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​
Non-capital losses | ​ | — | ​ | 937 |  | — | ​ | (8) | ​ | — | ​ | 929
Deferred and restricted share units | ​ | — | ​ | 56 | ​ | — | ​ | (2) | ​ | (25) | ​ | 29
Other assets | ​ | — | ​ | 5,053 |  | — | ​ | 116 | ​ | 3,040 | ​ | 8,209
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax liabilities: | ​ |  | ​ |  |  |  | ​ |  | ​ | ​ | ​ | ​
Investments | ​ | (1,205) | ​ | 1,205 |  | — | ​ | — | ​ | — | ​ | —
Stream interests | ​ | — | ​ | (6,429) | ​ | — | ​ | (1,040) | ​ | (21,354) | ​ | (28,823)
Property, Plant, & Equipment | ​ | — | ​ | (2,528) | ​ | — | ​ | (44) | ​ | (1,301) | ​ | (3,873)
Other Liabilities | ​ | — | ​ | — |  | — | ​ | (2) | ​ | (43) | ​ | (45)
​ | ​ | (1,205) | ​ | (1,706) |  | — | ​ | (980) | ​ | (19,683) | ​ | (23,574)
Schedule of unrecognized deferred tax assets | ​
​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
​ |  | $ | ​ | $
Non-capital losses carried forward | ​ | 146,800 | ​ | 116,656
Mineral stream interests – Mexico | ​ | 8,001 | ​ | 8,789
Unrealized losses on investments in associates | ​ | 1,505 | ​ | 3,124
Other | ​ | 668 | ​ | 156
​ | ​ | 156,974 | ​ | 128,725
​

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