Amounts receivable (Details Narrative) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
May 31, 2025	May 31, 2024	May 31, 2025	May 31, 2024
TRA [Member]
IfrsStatementLineItems [Line Items]
VAT refunds	$ 0.0	$ 0.5	$ 1.8	$ 3.1

The gains (losses) recognised in other comprehensive income on change in value of time value of options, net of tax, before reclassification adjustments. [Refer: Other comprehensive income]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 91
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_91_a&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration