v3.26.1
Share Capital - Summary of Issued Share Capital (Details)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
CAD ($)
shares
Mar. 31, 2026
USD ($)
shares
Mar. 31, 2025
CAD ($)
shares
Mar. 31, 2025
USD ($)
shares
Dec. 01, 2024
shares
Disclosure of classes of share capital [line items]          
Issuance of Subordinate Voting Shares pursuant to the XRM Acquisition     $ 2,875,000    
Increase (decrease) through other changes, equity $ 0        
RSUs          
Disclosure of classes of share capital [line items]          
Issuance of subordinate voting shares from settlement of DSUs and RSUs (72,000)   (97,000)    
PSUs          
Disclosure of classes of share capital [line items]          
Issuance of subordinate voting shares from settlement of DSUs and RSUs     $ (54,000)    
Subordinate Voting Shares          
Disclosure of classes of share capital [line items]          
Issuance of Multiple Voting Shares from exercise of stock options 100,000        
Multiple Voting Shares          
Disclosure of classes of share capital [line items]          
Issuance of Multiple Voting Shares from exercise of stock options $ 100,000        
Share capital          
Disclosure of classes of share capital [line items]          
Beginning balance (in shares) | shares 99,305,100 99,305,100 95,415,248 95,415,248  
Stock issued during period shares business combination (in shares) | shares     3,449,103 3,449,103  
Exercise of stock options (in shares) | shares 52,632 52,632      
Ending balance (in shares) | shares 96,867,123 96,867,123 99,305,100 99,305,100  
Issuance of Subordinate Voting Shares pursuant to the XRM Acquisition     $ 2,875,000    
Issuance of Multiple Voting Shares from exercise of stock options $ 178,000        
Increase (decrease) through other changes, equity (482,000)        
Share capital | DSUs          
Disclosure of classes of share capital [line items]          
Issuance of subordinate voting shares from settlement of DSUs and RSUs $ 620,000        
Share capital | RSUs          
Disclosure of classes of share capital [line items]          
Issued (in shares) | shares 84,470 84,470 69,840 69,840  
Issuance of subordinate voting shares from settlement of DSUs and RSUs $ 197,000   $ 169,000    
Share capital | PSUs          
Disclosure of classes of share capital [line items]          
Issued (in shares) | shares     23,812 23,812  
Issuance of subordinate voting shares from settlement of DSUs and RSUs     $ 222,000    
Share capital | Subordinate Voting Shares          
Disclosure of classes of share capital [line items]          
Beginning balance (in shares) | shares 92,030,852 92,030,852 88,141,000 88,141,000  
Shares purchased for cancellation (in shares) | shares (3,226,902) (3,226,902) 205,483 205,483  
Stock purchased for settlement of RSUs (in shares) | shares (84,470) (84,470) 69,840 69,840  
Delivery of shares upon settlement of RSUs (in shares) | shares 84,470 84,470 69,840 69,840  
Issuance of shares upon settlement of PSUs (in shares) | shares     23,812 23,812  
Ending balance (in shares) | shares 89,540,243 89,540,243 92,030,852 92,030,852  
Beginning balance $ 311,861,000   $ 307,585,000    
Shares purchased for cancellation (10,919,000)   717,000    
Shares purchased for settlement of RSUs (286,000)   244,000    
Delivery of shares upon settlement of RSUs $ 197,000   169,000    
Issuance of shares upon settlement of PSUs     222,000    
ifrs-full_ReductionOfIssuedCapital, shares | shares 142,318 142,318      
Reduction of issued capital $ 482,000        
Ending balance $ 302,957,000   $ 311,861,000    
Share capital | Subordinate Voting Shares | DSUs          
Disclosure of classes of share capital [line items]          
Issued (in shares) | shares 256,191 256,191      
Issuance of subordinate voting shares from settlement of DSUs and RSUs $ 620,000        
Share capital | Multiple Voting Shares          
Disclosure of classes of share capital [line items]          
Beginning balance (in shares) | shares 7,274,248 7,274,248 7,274,248 7,274,248  
Exercise of stock options (in shares) | shares 52,632 52,632      
Ending balance (in shares) | shares 7,326,880 7,326,880 7,274,248 7,274,248  
Beginning balance $ 4,824,000   $ 4,824,000    
Issuance of Multiple Voting Shares from exercise of stock options 178,000        
Ending balance 5,002,000   4,824,000    
Issuance of subordinate voting shares from exercise of stock options 178,000        
Contributed surplus | RSUs          
Disclosure of classes of share capital [line items]          
Issuance of subordinate voting shares from settlement of DSUs and RSUs (269,000)   (266,000)    
Contributed surplus | PSUs          
Disclosure of classes of share capital [line items]          
Issuance of subordinate voting shares from settlement of DSUs and RSUs     (521,000)    
Contributed surplus | Subordinate Voting Shares          
Disclosure of classes of share capital [line items]          
Issuance of Multiple Voting Shares from exercise of stock options (78,000)        
Contributed surplus | Multiple Voting Shares          
Disclosure of classes of share capital [line items]          
Issuance of Multiple Voting Shares from exercise of stock options 78,000        
Datum Consulting Group, LLC (b) | Subordinate Voting Shares          
Disclosure of classes of share capital [line items]          
Equity interest issued or issuable $ 1,966,000,000 $ 1,438 $ 1,971,000,000 $ 1,438  
Datum Consulting Group, LLC (b) | Share capital | Subordinate Voting Shares          
Disclosure of classes of share capital [line items]          
Stock issued during period shares business combination (in shares) | shares 622,420 622,420 622,420 622,420  
Issuance of Subordinate Voting Shares pursuant to the XRM Acquisition $ 1,966,000   $ 1,971,000    
XRM Vision Inc. (a) | Other consideration          
Disclosure of classes of share capital [line items]          
Number of instruments issued (in shares) | shares         1,724,553
XRM Vision Inc. (a) | Subordinate Voting Shares | Other consideration          
Disclosure of classes of share capital [line items]          
Number of instruments issued (in shares) | shares 1,532,936 1,532,936     1,724,553
Remaining NumberOfInstrumentsOrInterestsIssuedOrIssuable | shares 1,149,702 1,149,702      
XRM Vision Inc. (a) | Share capital          
Disclosure of classes of share capital [line items]          
Issuance of Subordinate Voting Shares pursuant to the XRM Acquisition     $ 5,750,000    
XRM Vision Inc. (a) | Share capital | Subordinate Voting Shares          
Disclosure of classes of share capital [line items]          
Stock issued during period shares business combination (in shares) | shares     3,449,103 3,449,103  
Issuance of Subordinate Voting Shares pursuant to the XRM Acquisition     $ 2,875,000