v3.26.1
Schedule of external transport services revenue by geographic area (Details) - SEK (kr)
kr in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
IfrsStatementLineItems [Line Items]    
Revenue kr 263,547 kr 216,484
Transport services [member]    
IfrsStatementLineItems [Line Items]    
Revenue 246,649 201,022
Sweden [member]    
IfrsStatementLineItems [Line Items]    
Revenue 78,065 82,404
United States [member]    
IfrsStatementLineItems [Line Items]    
Revenue 47,745 41,110
Germany [member]    
IfrsStatementLineItems [Line Items]    
Revenue 57,429 38,733
All other countries [member]    
IfrsStatementLineItems [Line Items]    
Revenue kr 63,410 kr 38,775