v3.26.1
Shareholders' equity - Schedule of Transactions Affecting Issued and Outstanding Share Capital (Details)
$ in Millions
 12 Months Ended
Mar. 29, 2026
CAD ($)
shares
Mar. 30, 2025
CAD ($)
shares
Mar. 31, 2024
CAD ($)
shares
Number      
Number of shares outstanding, beginning balance (in shares) | shares 96,834,467 96,532,514 104,188,988
Purchase of subordinate voting shares (in shares) | shares     (7,855,007)
Total share purchases (in shares) | shares     (7,855,007)
Exercise of stock options (in shares) | shares 56,881 115,296 64,058
Settlement of RSUs (in shares) | shares 251,094 186,657 134,475
Total share issuances (in shares) | shares 307,975 301,953 198,533
Number of shares outstanding, ending balance (in shares) | shares 97,142,442 96,834,467 96,532,514
$      
Shareholders’ equity, beginning balance $ 556.6 $ 423.5 $ 477.5
Shareholders’ equity, ending balance 627.8 556.6 423.5
Share capital      
$      
Shareholders’ equity, beginning balance 109.6 104.9 118.7
Purchase of subordinate voting shares     (17.8)
Total share purchases     (17.8)
Exercise of stock options 0.5 0.6 0.2
Settlement of RSUs 4.0 4.1 3.8
Total share issuances 4.5 4.7 4.0
Shareholders’ equity, ending balance $ 114.1 $ 109.6 $ 104.9
Multiple voting shares      
Number      
Number of shares outstanding, beginning balance (in shares) | shares 51,004,076 51,004,076 51,004,076
Purchase of subordinate voting shares (in shares) | shares     0
Total share purchases (in shares) | shares     0
Exercise of stock options (in shares) | shares 0 0 0
Settlement of RSUs (in shares) | shares 0 0 0
Total share issuances (in shares) | shares 0 0 0
Number of shares outstanding, ending balance (in shares) | shares 51,004,076 51,004,076 51,004,076
Multiple voting shares | Share capital      
$      
Shareholders’ equity, beginning balance $ 1.4 $ 1.4 $ 1.4
Purchase of subordinate voting shares     0.0
Total share purchases     0.0
Exercise of stock options 0.0 0.0 0.0
Settlement of RSUs 0.0 0.0 0.0
Total share issuances 0.0 0.0 0.0
Shareholders’ equity, ending balance $ 1.4 $ 1.4 $ 1.4
Subordinate voting shares      
Number      
Number of shares outstanding, beginning balance (in shares) | shares 45,830,391 45,528,438 53,184,912
Purchase of subordinate voting shares (in shares) | shares     (7,855,007)
Total share purchases (in shares) | shares     (7,855,007)
Exercise of stock options (in shares) | shares 56,881 115,296 64,058
Settlement of RSUs (in shares) | shares 251,094 186,657 134,475
Total share issuances (in shares) | shares 307,975 301,953 198,533
Number of shares outstanding, ending balance (in shares) | shares 46,138,366 45,830,391 45,528,438
Subordinate voting shares | Share capital      
$      
Shareholders’ equity, beginning balance $ 108.2 $ 103.5 $ 117.3
Purchase of subordinate voting shares     (17.8)
Total share purchases     (17.8)
Exercise of stock options 0.5 0.6 0.2
Settlement of RSUs 4.0 4.1 3.8
Total share issuances 4.5 4.7 4.0
Shareholders’ equity, ending balance $ 112.7 $ 108.2 $ 103.5