v3.24.1.1.u2
Income taxes - Narrative (Details) - CAD ($)
$ in Millions
12 Months Ended
Mar. 31, 2024
Apr. 02, 2023
Apr. 03, 2022
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Unremitted earnings from foreign subsidiaries $ 419.8 $ 417.7 $ 356.4
Deferred tax on share-based payment     0.2
Stock options      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Deferred tax on share-based payment 0.0 0.0 0.0
RSU      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Deferred tax on share-based payment 0.0 0.0 0.2
PSU      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Deferred tax on share-based payment 0.0 $ 0.0 $ 0.0
Capital losses      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Decrease in deferred tax asset 0.5    
Tax relief from Swiss tax reform      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Decrease in deferred tax asset $ 31.8