v3.26.1
Financial risk management objectives and policies - Schedule of Aging of Trade Receivables (Details) - Credit risk - Carrying value - CAD ($)
$ in Millions
Mar. 29, 2026
Mar. 30, 2025
Trade And Other Current Receivables [Line Items]    
Trade accounts receivable $ 92.1 $ 68.6
Sales tax receivables 27.8 22.9
Credit card receivables 4.5 4.5
Other receivables 2.7 4.5
Trade receivables 127.1 100.5
Current    
Trade And Other Current Receivables [Line Items]    
Trade accounts receivable 40.8 40.6
Sales tax receivables 27.8 22.9
Credit card receivables 4.5 4.5
Other receivables 2.6 1.9
Trade receivables 75.7 69.9
Less than 30 days    
Trade And Other Current Receivables [Line Items]    
Trade accounts receivable 13.1 9.2
Sales tax receivables 0.0 0.0
Credit card receivables 0.0 0.0
Other receivables 0.0 0.6
Trade receivables 13.1 9.8
31-60 days    
Trade And Other Current Receivables [Line Items]    
Trade accounts receivable 6.8 5.2
Sales tax receivables 0.0 0.0
Credit card receivables 0.0 0.0
Other receivables 0.0 0.0
Trade receivables 6.8 5.2
> 61 days    
Trade And Other Current Receivables [Line Items]    
Trade accounts receivable 31.4 13.6
Sales tax receivables 0.0 0.0
Credit card receivables 0.0 0.0
Other receivables 0.1 2.0
Trade receivables $ 31.5 $ 15.6