Financial Instruments and Risk Management (Credit Risk) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents	$ 623.1	$ 327.2	$ 224.8
Accounts Payable and Accrued Liabilities	299.1	0.0
Derivative assets	2.0	0.0
Other receivables	5.4	4.2
Total financial instrument exposure to credit risk	929.6	331.4
Cash and cash equivalents
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents	623.1	327.2
Trade receivables
Disclosure of detailed information about financial instruments [line items]
Other receivables	$ 5.4	$ 4.2

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The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

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- Definition

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

+ References

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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 that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

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The amount of current other receivables. [Refer: Other receivables]

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