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Finance Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Finance costs.
Interest expense - third party borrowings	$ 67.2	$ 85.5	$ 219.9	$ 257.4
Interest and finance charges for lease liabilities	18.1	17.0	50.3	51.1
Net foreign exchange loss arising from financing - realized	4.6		11.5	23.0
Fees on borrowings and financial derivatives	4.2	2.5	19.5	10.4
Net foreign exchange loss on derivative instruments - realized	3.3	2.9	3.3	23.2
Unwinding of discount on decommissioning liability	2.8	2.3	7.4	6.8
Interest expense - withholding tax on interest	1.5	4.6	18.4	11.8
Net foreign exchange loss arising from financing - unrealized		236.0		1,779.5
Finance costs	$ 101.7	$ 350.8	$ 330.3	$ 2,163.2

X

- Definition

The amount of expense recognised due to the unwinding of the discount on provisions other than provisions for employee benefits, resulting from the effect of the passage of time. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

The amount of costs associated with financing activities of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 82
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_82_b&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

The amount of interest expense on borrowings. [Refer: Interest expense; Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

The amount of interest expense on lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2024-01-01
-Paragraph 53
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_b&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

The amount of fees on loans and financial derivatives.

+ References

No definition available.

+ Details

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- Definition

Not available.

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No definition available.

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- Definition

Interest expense, withholding tax on bond interest

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No definition available.

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- Definition

The amount of realized net foreign exchange loss arising from financing.

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No definition available.

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- Definition

The amount of unrealized net foreign exchange loss arising from financing.

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No definition available.

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- Definition

The amount of realized net foreign exchange loss on derivative instruments.

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No definition available.

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