v3.26.1
Intangible Assets and Goodwill - Changes in Net Book Value of Intangible Assets and Goodwill (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance $ 89,034 $ 84,030
Additions 4,334 3,814
Other   (520)
Amortization (809) (595)
Impairment (36,551)  
Foreign currency translation 2,084 2,305
Net book value, ending balance 58,092 89,034
Brand    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 7,666 7,500
Additions 0 0
Other   0
Impairment (7,608)  
Foreign currency translation (58) 166
Net book value, ending balance 0 7,666
Permits and licenses    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 28,735 27,277
Additions 0 0
Other   59
Impairment (5,578)  
Foreign currency translation 653 1,399
Net book value, ending balance 23,810 28,735
Total intangible assets    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 45,163 40,850
Additions 4,334 3,460
Other   (130)
Amortization (809) (595)
Impairment (17,838)  
Foreign currency translation 591 1,578
Net book value, ending balance 31,441 45,163
Customer relationships    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 4,899 5,090
Additions 0 0
Other   90
Amortization (247) (281)
Impairment (4,652)  
Foreign currency translation 0 0
Net book value, ending balance 0 4,899
Permits and licenses    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 69 45
Additions 562 48
Other   8
Amortization (72) (43)
Impairment 0  
Foreign currency translation (4) 11
Net book value, ending balance 555 69
Patents    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 0 189
Additions   6
Other   (197)
Amortization   0
Foreign currency translation   2
Net book value, ending balance   0
Software    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 3,794 749
Additions 3,772 3,406
Other   (90)
Amortization (490) (271)
Impairment 0  
Foreign currency translation 0 0
Net book value, ending balance 7,076 3,794
Goodwill    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Net book value, beginning balance 43,871 43,180
Additions 0 354
Other   (390)
Impairment (18,713)  
Foreign currency translation 1,493 727
Net book value, ending balance $ 26,651 $ 43,871