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Marketable Securities - Summary of Detailed Information about Disposal of Marketable Securities (Parenthetical) (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2021 CAD ($)
Clover, Gemini and Tower uranium properties [Member]
Statement1 [Line Items]
Cost of disposition properties	$ 35
Gain on sale of assets	2,225
Mountain Lake property [Member]
Statement1 [Line Items]
Cost of disposition properties	126
Gain on sale of assets	$ 1,370

X

- Definition

The gains (losses) on available-for-sale financial assets. [Refer: Financial assets available-for-sale]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 20
-Subparagraph a
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_20_a_ii&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

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Period Type:	duration

X

- Definition

Cost of disposition properties.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Statement1

+ References

No definition available.

+ Details

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X

- Details

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Namespace Prefix:
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X

- Details

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Period Type: