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 |
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 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||
| Statement of changes in equity [line items] | ||||||||||
| Purchase of treasury shares | — |
2,000
NOK
|
2,000
NOK
|
977,000
NOK
|
975,000
NOK
|
— | — | — | — | — |
| Sale or issue of treasury shares |
6 731
NOK
|
15,000
NOK
|
6 746
NOK
|
7 235
NOK
|
489,000
NOK
|
1 063
NOK
|
5,000
NOK
|
1 066
NOK
|
2,000
NOK
|
3,000
NOK
|
| Share issue related cost |
5 032
NOK
|
— |
5 032
NOK
|
5 032
NOK
|
— | — | — | — | — | — |