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 |
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 |
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 |
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 |
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] | ||||||||||||||||||||||||
| Decrease (increase) through tax on share-based payment transactions, equity |
1,000
NOK
|
0
NOK
|
0
NOK
|
1,137,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
1,136,000
NOK
|
1,137,000
NOK
|
0
NOK
|
1,707,000
NOK
|
0
NOK
|
1,707,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
1,707,000
NOK
|
0
NOK
|
| Increase (decrease) through transactions with owners, equity |
1,111,405,000
NOK
|
0
NOK
|
32,000
NOK
|
874,969,000
NOK
|
0
NOK
|
2,686,674,000
NOK
|
0
NOK
|
0
NOK
|
1,125,000
NOK
|
46,711,000
NOK
|
1,986,374,000
NOK
|
1,859,574,000
NOK
|
0
NOK
|
973,571,000
NOK
|
36,000
NOK
|
1,367,754,000
NOK
|
0
NOK
|
46,885,000
NOK
|
0
NOK
|
0
NOK
|
347,261,000
NOK
|
0
NOK
|
1,320,832,000
NOK
|
0
NOK
|
| Share issue related cost |
0
NOK
|
0
NOK
|
0
NOK
|
21,201,000
NOK
|
0
NOK
|
21,201,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
21,201,000
NOK
|
0
NOK
|
0
NOK
|
20,976,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
20,976,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|