v3.26.1
Schedule of financial assets and liabilities in foreign currencies (Details) - SEK (kr)
kr in Thousands
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]      
Liabilities kr 4,152,824 kr 1,883,371 kr 1,737,487
Assets kr 3,941,829 1,825,371 1,749,680
USD [member]      
IfrsStatementLineItems [Line Items]      
Liabilities   594,212 613,061
Assets   208,058 56,884
EUR [member]      
IfrsStatementLineItems [Line Items]      
Liabilities   201,799 23,279
Assets   69,928 34,690
NOK [member]      
IfrsStatementLineItems [Line Items]      
Liabilities   45,413 2,234
Assets   38,251 20,816
Others [member]      
IfrsStatementLineItems [Line Items]      
Liabilities   26,964 4,947
Assets   kr 4,757 kr 6,419