v3.25.2

Share capital (Narrative) (Details) $ / shares in Units, $ / shares in Units, $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2025 CAD ($) $ / shares shares | Dec. 31, 2025 USD ($) $ / shares shares | Dec. 31, 2024 CAD ($) $ / shares shares | Dec. 31, 2024 USD ($) shares
Disclosure of classes of share capital [line items] |  |  |  |
NCIB description | In December 2025, OR Royalties renewed its normal course issuer bid ("NCIB") program. Under the terms of the NCIB program, OR Royalties may acquire up to 9,399,294 of its common shares from time to time in accordance with the normal course issuer bid procedures of the TSX. | In December 2025, OR Royalties renewed its normal course issuer bid ("NCIB") program. Under the terms of the NCIB program, OR Royalties may acquire up to 9,399,294 of its common shares from time to time in accordance with the normal course issuer bid procedures of the TSX. | Under the terms of the previous NCIB program, OR Royalties was allowed to acquire up to 9,331,275 of its common shares from time to time, from December 12, 2024 to December 11, 2025. | Under the terms of the previous NCIB program, OR Royalties was allowed to acquire up to 9,331,275 of its common shares from time to time, from December 12, 2024 to December 11, 2025.
Daily purchases of common shares, limit | 107,496 | 107,496 | 73,283 | 73,283
Shares purchased for cancellation | 1,100,000 | 1,100,000 | 26,000 | 26,000
Normal course issuer bid purchase of common shares | $ 50.8 | $ 36.7 | $ 0.6 | $ 0.4
Average acquisition price per share | $ / shares | $ 47.86 |  | $ 22.48 |
Dividend per share | (per share) |  | $ 0.211 | $ 0.255 |
February 19, 2025 [Member] |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Dividend per share | (per share) | $ 0.065 | $ 0.046 |  |
Dividend reinvestment plan [Member] |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Common shares elected to participate in dividend reinvestment plan |  | 13,300,000 |  |
Dividends payable | $ |  | $ 0.7 |  |
Common shares issued under DRIP | 128,684 | 128,684 | 205,741 | 205,741
Discount under dividend reinvestment plan | 3.00% | 3.00% | 3.00% | 3.00%
Dividend reinvestment plan [Member] | January 15, 2026 [Member] |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Common shares issued under DRIP | 18,705 | 18,705 |  |
Discount under dividend reinvestment plan | 3.00% | 3.00% |  |
Revolving credit facility [Member] |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Accordion feature |  | $ 200.0 | $ 200.0 |

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