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Related-Party Disclosures - Schedule of Transactions with Joint Ventures (Details) - Joint ventures - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of transactions between related parties [Line Items]    
Sales to Related Parties $ 143.0 $ 96.3
Distributions Paid 0.9 0.8
Amounts Owed by Related Parties $ 24.5 $ 16.7