XML 39 R8.htm IDEA: XBRL DOCUMENT
v3.23.1

Basis of Preparation | 12 Months Ended
--- | ---
Dec. 31, 2022
Disclosure of notes and other explanatory information [Abstract] |
Basis of Preparation |
2. | BASIS OF PREPARATION
These consolidated financial statements are prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”). These consolidated financial statements have been prepared using the historical cost convention, other than for certain financial instruments, which are measured in accordance with the policy disclosed in note 3. The consolidated financial statements were authorized for issue by the Board of Directors on February 22, 2023.

X
- Definition Disclosure of notes and other explanatory information [Abstract] + References No definition available. + Details
Name: | agi_DisclosureofnotesandotherexplanatoryinformationAbstract
Namespace Prefix: | agi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the basis used for the preparation of the financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 10 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_10_e&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration