XML 122 R104.htm IDEA: XBRL DOCUMENT v3.22.2
INVENTORIES - Narrative (Details) - CAD ($)
$ in Millions
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Inventories [Abstract]    
Cost of inventories recognised as expense during period $ 413.9 $ 394.9
Impairment of inventories to net realizable value $ 5.2 $ 34.0