v3.25.2

Accounts payable and accrued liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Accounts payable and accrued liabilities [Abstract] |
Disclosure of detailed information about trade and other payables [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
|  | $ |  |  | $ |
Trade payables |  | 3,037 |  |  | 1,378 |
Other payables |  | 3,538 |  |  | 3,066 |
Other accrued liabilities |  | 902 |  |  | 887 |
|  | 7,477 |  |  | 5,331 |

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- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
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- Definition Disclosure of detailed information about trade and other payables [Table Text Block] + References No definition available. + Details
Name: | or_DisclosureOfDetailedInformationAboutTradeAndOtherPayablesExplanatory
Namespace Prefix: | or_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration