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Income taxes - Disclosure of deferred taxes (Details) - CAD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Deferred tax assets: |  |  |
Stream interests | $ 28,826 | $ 7,133 | $ 7,793
Share and debt issue expenses | (113) | 989 | 2,286
Deferred and restricted share units | 2,865 | 2,032 | 2,032
Non-capital losses | 170 | 0 | 1,015
Other assets | 149 | 120 | 223
Deferred tax liabilities: |  |  |
Royalty interests and exploration and evaluation assets | (77,641) | (88,787) | (123,772)
Investments | 1,911 | (3,898) | (10,054)
Convertible debentures | (3,632) | (4,866) | (6,047)
Other liabilities |  | 0 | $ (238)
Total deferred tax assets and liabilities | (79,362) | (97,551) |
Statement of loss [Member] |  |  |
Deferred tax assets: |  |  |
Stream interests | 21,693 | (660) |
Share and debt issue expenses | (1,036) | (1,297) |
Deferred and restricted share units | 726 | (140) |
Non-capital losses | 170 | (1,015) |
Other assets | 29 | (103) |
Deferred tax liabilities: |  |  |
Royalty interests and exploration and evaluation assets | 11,769 | 37,574 |
Investments | 6,612 | 192 |
Convertible debentures | 1,234 | 1,181 |
Other liabilities |  | 238 |
Total deferred tax assets and liabilities | 41,197 | 35,970 |
Equity |  |  |
Deferred tax assets: |  |  |
Stream interests | 0 | 0 |
Share and debt issue expenses | (66) | 0 |
Deferred and restricted share units | 107 | 140 |
Non-capital losses | 0 | 0 |
Other assets | 0 | 0 |
Deferred tax liabilities: |  |  |
Royalty interests and exploration and evaluation assets | 0 | 0 |
Investments | 0 | 0 |
Convertible debentures | 0 | 0 |
Other liabilities |  | 0 |
Total deferred tax assets and liabilities | 41 | 140 |
Other comprehensive income [Member] |  |  |
Deferred tax assets: |  |  |
Stream interests | 0 | 0 |
Share and debt issue expenses | 0 | 0 |
Deferred and restricted share units | 0 | 0 |
Non-capital losses | 0 | 0 |
Other assets | 0 | 0 |
Deferred tax liabilities: |  |  |
Royalty interests and exploration and evaluation assets | (949) | (2,038) |
Investments | (803) | 5,964 |
Convertible debentures | 0 | 0 |
Other liabilities |  | 0 |
Total deferred tax assets and liabilities | (1,752) | 3,926 |
Translation adjustments [Member] |  |  |
Deferred tax assets: |  |  |
Stream interests | 0 | 0 |
Share and debt issue expenses | 0 | 0 |
Deferred and restricted share units | 0 | 0 |
Non-capital losses | 0 | 0 |
Other assets | 0 | 0 |
Deferred tax liabilities: |  |  |
Royalty interests and exploration and evaluation assets | 326 | (551) |
Investments | 0 | 0 |
Convertible debentures | 0 | 0 |
Other liabilities |  | 0 |
Total deferred tax assets and liabilities | $ 326 | $ (551) |

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