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Significant accounting policies - Disclosure of geographic locations, related participation and principal operating segment (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Osisko Development Corp [Member]
Significant Accounting Policies [Line Items]
Participation	75.10%	84.10%
Osisko Bermuda Limited [Member]
Significant Accounting Policies [Line Items]
Participation	100.00%
Osisko Mining (USA) Inc. [Member]
Significant Accounting Policies [Line Items]
Participation	100.00%

X

- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Details

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