Mining and Income Taxation - Narrative (Details) $ in Millions	12 Months Ended
Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Disclosure of Components of Mining and Income Tax [Line Items]
Tax rate effect for non-mining assets	27.00%
Global anti-base erosion effective tax rate	0.15
– Ghana expected credit loss	$ 33.2	$ 17.5	$ 41.1
Minimum
Disclosure of Components of Mining and Income Tax [Line Items]
Global anti-base erosion effective tax rate	0.15

The amount of additional allowance for credit losses of financial assets recognised in profit or loss. [Refer: Allowance account for credit losses of financial assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expired 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 16
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b
-URIDate 2023-03-23

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