v3.26.1
Share Capital - Additional Information (Details)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
CAD ($)
shares
vote
Mar. 31, 2026
USD ($)
shares
vote
Mar. 31, 2025
CAD ($)
shares
vote
Mar. 31, 2025
USD ($)
shares
vote
Sep. 09, 2025
Dec. 01, 2024
shares
Sep. 13, 2023
shares
Disclosure of classes of share capital [line items]              
Allowable purchase for cancellation of subordinate voting shares | shares             5,939,183
Allowable purchase for cancellation of subordinate voting shares, percent         10.00%    
Issuance of Subordinate Voting Shares pursuant to the XRM Acquisition     $ 2,875,000        
Shares purchased for cancellation $ 5,208,000   402,000        
Shares Repurchased for Cancellation, Value for Datum Transaction 3,972,000            
RSUs              
Disclosure of classes of share capital [line items]              
Shares purchased for settlement $ 205,000   $ 148,000        
Number of other equity instruments settled (in shares) | shares 116,567 116,567 116,566 116,566      
Issuance of subordinate voting shares $ (72,000)   $ (97,000)        
PSUs              
Disclosure of classes of share capital [line items]              
Number of other equity instruments settled (in shares) | shares 0 0 89,712 89,712      
Issuance of subordinate voting shares     $ (54,000)        
Long Term Incentive Plan | PSUs              
Disclosure of classes of share capital [line items]              
Number of other equity instruments settled (in shares) | shares     55,942 55,942      
Share capital              
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        
Shares purchased for cancellation $ 10,919,000   717,000        
Issuance of Multiple Voting Shares from exercise of stock options 178,000            
Share capital | RSUs              
Disclosure of classes of share capital [line items]              
Shares purchased for settlement $ 286,000   $ 244,000        
Number of instruments issued (in shares) | shares 84,470 84,470 69,840 69,840      
Issuance of subordinate voting shares $ 197,000   $ 169,000        
Share capital | PSUs              
Disclosure of classes of share capital [line items]              
Number of instruments issued (in shares) | shares     23,812 23,812      
Issuance of subordinate voting shares     $ 222,000        
Deficit              
Disclosure of classes of share capital [line items]              
Shares purchased for cancellation (5,711,000)   (315,000)        
Deficit | RSUs              
Disclosure of classes of share capital [line items]              
Shares purchased for settlement (81,000)   (96,000)        
Deficit | PSUs              
Disclosure of classes of share capital [line items]              
Issuance of subordinate voting shares     245,000        
Contributed surplus | RSUs              
Disclosure of classes of share capital [line items]              
Issuance of subordinate voting shares $ (269,000)   (266,000)        
Contributed surplus | PSUs              
Disclosure of classes of share capital [line items]              
Issuance of subordinate voting shares     (521,000)        
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) | Share capital              
Disclosure of classes of share capital [line items]              
Issuance of Subordinate Voting Shares pursuant to the XRM Acquisition     $ 5,750,000        
Subordinate Voting Shares              
Disclosure of classes of share capital [line items]              
Number of votes per share | vote 1 1 1 1      
Issuance of Multiple Voting Shares from exercise of stock options $ 100,000            
Proceeds from issuing shares $ 620,000            
Subordinate Voting Shares | Share capital              
Disclosure of classes of share capital [line items]              
Shares purchased for cancellation (in shares) | shares 3,226,902 3,226,902 (205,483) (205,483)      
Delivery of shares upon settlement of RSUs (in shares) | shares 84,470 84,470 69,840 69,840      
Shares purchased for settlement of RSUs $ 286,000   $ (244,000)        
Delivery of shares upon settlement of RSUs 197,000   169,000        
Stock Purchased For Cancellation, Value $ 10,919,000   (717,000)        
Stock Purchased For Cancellation, Shares from Datum Transaction | shares 2,489,682 2,489,682          
Subordinate Voting Shares | Contributed surplus              
Disclosure of classes of share capital [line items]              
Issuance of Multiple Voting Shares from exercise of stock options $ (78,000)            
Subordinate Voting Shares | Datum Consulting Group, LLC (b)              
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      
Subordinate Voting Shares | Datum Consulting Group, LLC (b) | Share capital              
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        
Subordinate Voting Shares | XRM Vision Inc. (a) | 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  
Subordinate Voting Shares | XRM Vision Inc. (a) | Purchase consideration              
Disclosure of classes of share capital [line items]              
Number of instruments issued (in shares) | shares           1,724,550  
Subordinate Voting Shares | XRM Vision Inc. (a) | Share capital              
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        
Multiple Voting Shares              
Disclosure of classes of share capital [line items]              
Number of votes per share | vote 10 10 10 10      
Issuance of Multiple Voting Shares from exercise of stock options $ 100,000            
Multiple Voting Shares | Share capital              
Disclosure of classes of share capital [line items]              
Issuance of subordinate voting shares from exercise of stock options 178,000            
Issuance of Multiple Voting Shares from exercise of stock options 178,000            
Multiple Voting Shares | Contributed surplus              
Disclosure of classes of share capital [line items]              
Issuance of Multiple Voting Shares from exercise of stock options $ 78,000            
Series A Preferred Shares              
Disclosure of classes of share capital [line items]              
Daily rate, calculation of non cumulative preferred dividend 0.02% 0.02%          
Series B Preferred Shares              
Disclosure of classes of share capital [line items]              
Daily rate, calculation of non cumulative preferred dividend 0.05% 0.05%