v3.24.1.1.u2
Related party transactions - Narrative (Details) - CAD ($)
 12 Months Ended
Mar. 31, 2024
Apr. 02, 2023
Apr. 03, 2022
Disclosure of transactions between related parties [line items]      
Expenses incurred with related parties $ 1,100,000 $ 1,300,000 $ 1,700,000
Amounts payable, related party transactions 200,000 400,000  
Lease liabilities 330,500,000 334,800,000 250,700,000
Baffin Inc.      
Disclosure of transactions between related parties [line items]      
Amounts payable, related party transactions 0 0  
Lease liabilities 2,500,000 3,100,000  
Leases as lessee, related party transactions 1,600,000 1,400,000 1,400,000
Sazaby League Ltd      
Disclosure of transactions between related parties [line items]      
Amounts payable, related party transactions 300,000 200,000  
Lease liabilities 1,900,000 2,700,000  
Leases as lessee, related party transactions 5,200,000 5,900,000 0
Sales of inventory, related party transactions   11,900,000  
Sazaby League Ltd | Japan Joint Venture      
Disclosure of transactions between related parties [line items]      
Purchases of inventory, related party transactions   11,900,000  
Sazaby League Group | Japan Joint Venture      
Disclosure of transactions between related parties [line items]      
Sales of inventory, related party transactions 1,500,000 1,700,000 $ 0
Amounts receivable, related party transactions 100,000 $ 100,000  
PCML Vendor      
Disclosure of transactions between related parties [line items]      
Lease liabilities 1,200,000    
Operating expense excluding cost of sales 1,500,000    
Cash outflow for leases $ 100,000