XML 86 R52.htm IDEA: XBRL DOCUMENT
v3.24.1

Mineral Property, Plant and Equipment (Royalties Payable) (Details) | Dec. 31, 2023
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Mulatos1 |
Disclosure of detailed information about property, plant and equipment [line items] |
Royalty rate | 0.50%
Young-Davidson |
Disclosure of detailed information about property, plant and equipment [line items] |
Royalty rate | 1.50%

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- Definition Royalty Rate + References No definition available. + Details
Name: | agi_RoyaltyRate
Namespace Prefix: | agi_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_SegmentsAxis=agi_MulatosSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=agi_YoungDavidsonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |