Derivative Financial Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Detailed Information about Derivative Financial Assets Explanatory [Line Items]
Derivative financial assets	$ 0.0	$ 5.1
Australian gold derivative contracts
Disclosure Of Detailed Information about Derivative Financial Assets Explanatory [Line Items]
Derivative financial assets held for hedging	0.0	2.0
Ghanaian oil derivative contracts
Disclosure Of Detailed Information about Derivative Financial Assets Explanatory [Line Items]
Derivative financial assets held for hedging	$ 0.0	$ 3.1

Disclosure of detailed information about derivative financial assets explanatory [Line items].

No definition available.

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- Definition

The amount of current derivative financial assets. [Refer: Derivative financial assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

+ Details

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- Definition

The amount of derivative financial assets held for hedging. [Refer: Derivative financial assets]

+ References

+ Details

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- Details

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- Details

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