v3.26.1
Accumulated other comprehensive income (loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disclosure of reserves within equity [line items]    
Balance - Beginning of fiscal year $ (7,462) $ (4,045)
Foreign currency differences on translation of foreign operations 7,083 (732)
Change in net unrealized gain (loss) on cash flow hedging instruments 2,258 (2,753)
Deferred income tax recovery 0 68
Balance - End of fiscal year 1,879 (7,462)
Foreign currency differences on translation of foreign operations    
Disclosure of reserves within equity [line items]    
Balance - Beginning of fiscal year (4,966) (4,234)
Foreign currency differences on translation of foreign operations 7,083 (732)
Change in net unrealized gain (loss) on cash flow hedging instruments 0 0
Deferred income tax recovery 0 0
Balance - End of fiscal year 2,117 (4,966)
Hedging reserve    
Disclosure of reserves within equity [line items]    
Balance - Beginning of fiscal year (2,496) 189
Foreign currency differences on translation of foreign operations 0 0
Change in net unrealized gain (loss) on cash flow hedging instruments 2,258 (2,753)
Deferred income tax recovery 0 68
Balance - End of fiscal year $ (238) $ (2,496)