Research and development expenses (Details) - SEK (kr) kr in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| IfrsStatementLineItems [Line Items] | ||
| Total research and development expenses | kr (329,825) | kr (349,054) |
| Staff Costs [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Total research and development expenses | (186,772) | (244,134) |
| I T And Software Expenses [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Total research and development expenses | (59,449) | (19,741) |
| Professional Services [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Total research and development expenses | (14,401) | (19,284) |
| Depreciation And Amortization [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Total research and development expenses | (54,661) | (62,086) |
| Other Costs [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Total research and development expenses | kr (14,542) | kr (3,809) |