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Mining interests - Schedule of mining interests (Details) - CAD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Mining interests |  |
Mining Interests | $ 451,695 | $ 580,479
Gross Carrying Amount |  |
Mining interests |  |
Beginning of period | 583,669 | 475,621
Acquisition of Tintic |  | 169,175
Additions | 30,598 | 49,297
Mining Tax Credit | 152 | (6,404)
Asset retirement obligation | (326) | 9,248
Depreciation capitalized | 4,630 | 1,141
Share-based compensation capitalized | 287 | 530
Impairment | (160,484) | (140,000)
Other adjustments |  | 5,579
Currency translation adjustments | (2,059) | 19,482
End of period | 456,467 | 583,669
Accumulated Depreciation, Amortisation and Impairment |  |
Mining interests |  |
Beginning of period | 3,190 |
Depreciation capitalized | 1,075 | 2,964
Currency translation adjustments | 507 | 226
End of period | $ 4,772 | $ 3,190

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- Definition The amount of assets related to mining activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 37 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_37&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_MiningAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount recognised as of the acquisition date for mining assets acquired in a business combination. + References No definition available. + Details
Name: | odv_AcquisitionsThroughBusinessCombinationsMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of additions to mining assets other than those acquired through business combinations. + References No definition available. + Details
Name: | odv_AdditionsOtherThanThroughBusinessCombinationsMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The decrease in mining assets resulting from asset retirement obligations. + References No definition available. + Details
Name: | odv_AssetRetirementObligationsMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of depreciation of mining assets. + References No definition available. + Details
Name: | odv_DepreciationMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of impairment loss recognised in profit or loss for mining assets. + References No definition available. + Details
Name: | odv_ImpairmentLossRecognisedInProfitOrLossMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) in mining assets resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. + References No definition available. + Details
Name: | odv_IncreaseDecreaseThroughNetExchangeDifferencesMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The increase (decrease) in mining assets resulting from changes that the entity does not separately disclose in the same statement or note. + References No definition available. + Details
Name: | odv_IncreaseDecreaseThroughOtherChangesMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of mining interests. + References No definition available. + Details
Name: | odv_MiningInterests
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount of mining tax credit. + References No definition available. + Details
Name: | odv_MiningTaxCredit
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of share based compensation capitalized relating to mining assets. + References No definition available. + Details
Name: | odv_ShareBasedCompensationMiningAssets
Namespace Prefix: | odv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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