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Mining interests - Schedule of mining interests (Details) - CAD ($) $ in Thousands	12 Months Ended
	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

X

- 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

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount recognised as of the acquisition date for mining assets acquired in a business combination.

+ References

No definition available.

+ Details

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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

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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

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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

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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

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Namespace Prefix:	odv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

X

- Definition

The amount of mining interests.

+ References

No definition available.

+ Details

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Namespace Prefix:	odv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of mining tax credit.

+ References

No definition available.

+ Details

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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

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Namespace Prefix:	odv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:
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