Income Taxes (Narrative) (Details) $ in Millions, $ in Millions			12 Months Ended
	Dec. 03, 2024 USD ($)	Dec. 03, 2024 CAD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Feb. 01, 2025 USD ($)	Feb. 01, 2025 CAD ($)	Dec. 03, 2024 CAD ($)	Dec. 31, 2023 USD ($)
Income Tax Disclosure [Line Items]
Capital loss carry-forwards			$ 0.8	$ 63.5
Gross unrecognized tax benefits			21.8	26.7				$ 25.1
Unrecognized tax benefits that would impact effective tax rate			16.2	18.7
Accrued interest and penalties			4.2	4.4
Interest and penalties			0.2	0.1
Income tax payable from notice of assessment	$ 57.8	$ 79.1
Accrued income taxes	27.5						$ 37.7
Interest and penalties accrued from income tax examination	$ 30.2						$ 41.4
Deposit paid					$ 28.8	$ 39.5
Capital Loss Carryforward
Income Tax Disclosure [Line Items]
Capital loss carry-forwards			$ 68.1	$ 67.1