Other assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Other Assets1 [Abstract]
Reclamation deposits	$ 68,808	$ 54,375
Restricted cash	6,109	5,054
Prepaid withholding tax	0	14,473
Other	69	62
Other non-current assets	$ 74,986	$ 73,964

The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant