v3.26.1
Financial risk management objectives and policies - Schedule of Unrealized Gains (Losses) in Fair Value of Hedging Instruments in Other Comprehensive Income (Details) - CAD ($)
$ in Millions
12 Months Ended
Mar. 29, 2026
Mar. 30, 2025
Mar. 31, 2024
Disclosure of detailed information about hedges [line items]      
Gains (losses) on cash flow hedges, net of tax $ (3.5) $ (13.3) $ (0.5)
Foreign exchange risk | Cross currency swap | Cash flow hedges      
Disclosure of detailed information about hedges [line items]      
Gains (losses) on cash flow hedges, net of tax (4.4) (8.1) (1.8)
Tax expense (recovery) $ 1.5 $ 2.8 $ 0.3