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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of Cash Flow Statement [Abstract]
Amounts receivable	$ 2.7	$ (13.6)
Inventory	53.3	(26.0)
Advances and prepaid expenses	2.0	(0.6)
Accounts payable and accrued liabilities	(40.9)	2.3
Income taxes (paid) refunded	(82.2)	(8.3)
Increase (decrease) in working capital	$ (65.1)	$ (46.2)

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- Definition

Adjustments for Accounts Payable and Accrued Liabilities1

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Adjustments for Advances and Prepaid Expense

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- Definition

Disclosure of Cash Flow Statement [Abstract]

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- Definition

Adjustments for decrease (increase) in inventories to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Inventories; Profit (loss)]

+ References

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Adjustments for decrease (increase) in trade accounts receivable to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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The cash flows from income taxes paid or refunded.

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The increase (decrease) in working capital.

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