Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||
| Statement of changes in equity [line items] | ||||||||
| Increase (decrease) through exercise of options, equity |
5 441
NOK
|
— | — |
5 441
NOK
|
— |
440,000
NOK
|
440,000
NOK
|
— |
| Purchase of treasury shares | — |
313,000
NOK
|
13 322
NOK
|
13 635
NOK
|
— | — | — | — |
| Sale or issue of treasury shares | — | — | — | — |
1 325
NOK
|
1 380
NOK
|
— |
55,000
NOK
|