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Inventories - Schedule of Inventories (Details) - CAD ($)
$ in Millions
Mar. 31, 2024
Apr. 02, 2023
Inventories [Abstract]    
Raw materials $ 48.4 $ 60.3
Work in progress 25.8 17.5
Finished goods 371.0 394.8
Total inventories at the lower of cost and net realizable value $ 445.2 $ 472.6