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Commitments - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
South African, Peruvian, Ghanaian, and Australian operations
Disclosure of Information about Guarantees [Line Items]
Environmental obligation guarantees amount	$ 221.0	$ 213.6

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- Definition

Disclosure of information about guarantees.

+ References

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- Definition

Environmental obligation guarantees amount.

+ References

No definition available.

+ Details

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- Details

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