XML 135 R113.htm IDEA: XBRL DOCUMENT v3.25.0.1

Commitments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Commitments [Line Items]
Royalties	$ 13.8	$ 10.2

X

- Definition

[Line Items] for Commitments [Table]

+ References

No definition available.

+ Details

Name:	agi_CommitmentsLineItems
Namespace Prefix:	agi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of expense arising from royalties.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 85
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_85&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_RoyaltyExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration