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Inventory - Components of Inventory (Details) - CAD ($)
$ in Thousands
Dec. 31, 2022
Mar. 31, 2022
Inventory Disclosure [Abstract]    
Raw materials, packaging supplies and consumables $ 34,940 $ 26,821
Work in progress 64,483 65,245
Finished goods 114,514 112,321
Inventory $ 213,937 $ 204,387