Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||
| Statement of changes in equity [line items] | ||||||||||
| Purchase of treasury shares |
1,424,000
ISK
|
135,000,000
ISK
|
899,000,000
ISK
|
33,000,000
ISK
|
357,000,000
ISK
|
296,000,000
ISK
|
75,000,000
ISK
|
2,976,000
ISK
|
2,110,000
ISK
|
495,000,000
ISK
|
| Sale or issue of treasury shares |
1,000,000
ISK
|
101,000,000
ISK
|
899,000,000
ISK
|
25,000,000
ISK
|
25,000,000
ISK
|
— | — | — | — | — |
| Reduction of issued capital | — | — | — | — | — |
1,429,000
ISK
|
357,000,000
ISK
|
15,580,000
ISK
|
13,794,000
ISK
|
— |