v3.25.4
Segmented Information - Schedule of plant and equipment by geographical location (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Mar. 31, 2025
Revenues from External Customers and Long-Lived Assets [Line Items]    
Plant and equipment $ 469,325 $ 202,848
Right of use asset 4,122 5,546
Total plant and equipment 473,447 208,394
Canada [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Plant and equipment 86,979 101,311
Right of use asset 2,565 2,918
Total plant and equipment 89,544 104,229
Sweden [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Plant and equipment 15,870 25,953
Right of use asset 1,415 2,588
Total plant and equipment 17,285 28,541
Paraguay [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Plant and equipment 366,476 75,581
Right of use asset 0 0
Total plant and equipment 366,476 75,581
Bermuda [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Plant and equipment 0 3
Right of use asset 142 40
Total plant and equipment $ 142 $ 43