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Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Tax Disclosure [Line Items]
Income tax expense	$ 32.6	$ 21.6	$ 23.4	$ 57.9
Effective income tax rate	27.00%	29.00%	29.00%	20.00%
Canada Revenue Agency | Maximum
Income Tax Disclosure [Line Items]
Federal and provincial income tax estimated, exclusive of interest and penalties			$ 30.0
Canada Revenue Agency | Minimum
Income Tax Disclosure [Line Items]
Federal and provincial income tax estimated, exclusive of interest and penalties			$ 26.0

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Estimated amount of loss resulting from an adverse tax position.

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