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Goodwill - Additional Information (Details) - CAD ($) $ in Millions	Dec. 31, 2024	Oct. 01, 2024	Dec. 31, 2023	Oct. 01, 2023
Global
Disclosure of information for cash-generating units [line items]
Amount of recoverable amount exceeds carrying amount		$ 256.4
Terminal operating margins		10.50%
Amount by which value assigned to key assumption must change in order for unit's recoverable amount to be equal to carrying amount		150
Global
Disclosure of information for cash-generating units [line items]
Discount rate applied to cash flow projections		10.10%		10.80%
Canada
Disclosure of information for cash-generating units [line items]
Discount rate applied to cash flow projections		8.70%		8.90%
United States
Disclosure of information for cash-generating units [line items]
Discount rate applied to cash flow projections		9.40%		9.50%
Top of range
Disclosure of information for cash-generating units [line items]
Percentage of growth rate	2.50%		3.50%

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- Definition

The amount by which a cash-generating unit's (group of units') recoverable amount exceeds its carrying amount. [Refer: Carrying amount [member]; Total for all cash-generating units [member]]

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The amount by which value that has been assigned to a key assumption must change in order for a unit's recoverable amount to be equal to its carrying amount. [Refer: Carrying amount [member]]

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