Schedule of geographical location (Details) - SEK (kr) kr in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|
| IfrsStatementLineItems [Line Items] | |||
| Total non-current assets | kr 3,000,878 | kr 1,392,407 | kr 1,501,694 |
| Sweden country [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Total non-current assets | 459,502 | 488,830 | |
| United state country [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Total non-current assets | 623,046 | 834,603 | |
| Germany country [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Total non-current assets | 169,704 | 78,608 | |
| All other countries [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Total non-current assets | kr 140,154 | kr 99,653 |