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- Definition

Represents the amount of flow-through share liability.

+ References

No definition available.

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- Definition

Represents the amount of flow through share liability recognized in other expenses.

+ References

No definition available.

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- Definition

The increase (decrease) in the number of shares outstanding from flow through shares.

+ References

No definition available.

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- Definition

Represents net proceeds from issuing shares.

+ References

No definition available.

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- Definition

Represent the amount of proceeds on flow-through shares, net of share issuance costs.

+ References

No definition available.

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- Definition

Shares issued, price per share

+ References

No definition available.

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- Definition

Represents the transaction costs related to the offering.

+ References

No definition available.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The amount of dividends recognised as distributions to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The increase (decrease) in the number of shares outstanding. [Refer: Number of shares outstanding]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The increase in equity through the issue of equity instruments.

+ References

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- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Total for all business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The cash inflow from issuing shares.

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Share capital (Narrative) (Details) $ / shares in Units, $ in Millions	1 Months Ended							12 Months Ended
	Sep. 19, 2025 USD ($)	Jun. 24, 2025 $ / shares	Jun. 24, 2025 USD ($) shares	Mar. 21, 2025 USD ($)	Sep. 20, 2024 USD ($)	May 24, 2024 USD ($) $ / shares shares	Mar. 22, 2024 USD ($)	Dec. 31, 2025 USD ($) $ / shares	Dec. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($) $ / shares	Dec. 31, 2024 USD ($) shares	Apr. 30, 2025
Disclosure of classes of share capital [line items]
Proceeds from issuing shares									$ 26.8		$ 398.0
Shares issued on equity raise, net of share issuance costs									4.2		386.2
Proceeds on flow-through shares, net of share issuance cost									22.6		11.8
Flow-through share liability								$ 8.9	8.9	$ 3.2	3.2
Flow through share liability recognized in other expenses								$ 1.3	1.3
Dividends declared, amount per share \| $ / shares								$ 0.01		$ 0.01
Dividends paid	$ 2.8			$ 2.8	$ 2.9		$ 2.6		$ 5.6		$ 5.5
Private placement [Member]
Disclosure of classes of share capital [line items]
Number of shares issued \| shares			465,394
Shares issued, price per share \| $ / shares		$ 13.3
Proceeds from issuing shares			$ 4.5
Share issuance costs			0.3
Shares issued on equity raise, net of share issuance costs			$ 4.2
Underwriters Offering [Member]
Disclosure of classes of share capital [line items]
Number of shares issued \| shares						42,366,000
Shares issued, price per share \| $ / shares						$ 9.5
Proceeds from issuing shares						$ 402.5
Transaction costs related to the offering						16.1
Net proceeds from issuing shares						386.4
Share issuance costs						0.2
Shares issued on equity raise, net of share issuance costs						$ 386.2
Share capital [Member]
Disclosure of classes of share capital [line items]
Number of shares issued \| shares									465,394		42,366,000
Shares issued on equity raise, net of share issuance costs									$ 4.2		$ 386.2
Flow through shares, net of share issuance costs (shares) \| shares									887,000		968,900
Copper Mountain Mine (BC) Ltd. [Member] \| Mitsubishi Materials Corporation [Member]
Disclosure of classes of share capital [line items]
Percentage of voting equity interests acquired												25.00%