v3.26.1
Financial Instruments Risk - Liquidity Risk Narrative (Details)
$ in Thousands, $ in Millions
 12 Months Ended
Mar. 31, 2026
CAD ($)
Mar. 31, 2026
USD ($)
Feb. 04, 2026
USD ($)
Mar. 31, 2025
CAD ($)
Mar. 31, 2024
CAD ($)
 [1]
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Cash and cash equivalents $ 64,690     $ 137,921 [1] $ 136,095
Short-term investments 52,213     $ 0  
ATM Program          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Authorized amount through share issuance program     $ 100    
Liquidity risk          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Cash and cash equivalents 64,700        
Short-term investments $ 52,200        
Issuance amount allowed under shelf prospectus   $ 250      
Shelf Prospectus effective period 25 months        
Liquidity risk | Self-Insurance Policy          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Restricted cash $ 45,100        
Liquidity risk | ATM Program          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Authorized amount through share issuance program   $ 100      
[1] Adjusted for discontinued operations (Note 6).