Statement Of Changes In Equity [Abstract]
| Concept |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||
| Equity |
713 313
SEK
|
431 741
SEK
|
— | — |
1 134 276
SEK
|
— |
5 165
SEK
|
5 614
SEK
|
— | — | — |
524 938
SEK
|
4 977
SEK
|
— |
3 945
SEK
|
773 724
SEK
|
— |
257 708
SEK
|
— | — | — |
184 323
SEK
|
3 456
SEK
|
6 719
SEK
|
448 089
SEK
|
159 352
SEK
|
6 719
SEK
|
298 912
SEK
|
448 089
SEK
|
3 456
SEK
|
273 941
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — |
188 376
SEK
|
188 376
SEK
|
226 026
SEK
|
— | — |
226 026
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — |
1 220
SEK
|
— | — | — | — |
1 220
SEK
|
— |
2 774
SEK
|
— | — | — | — | — | — | — |
2 774
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — | — | — |
1 220
SEK
|
— | — | — | — |
187 156
SEK
|
188 376
SEK
|
228 800
SEK
|
— | — |
226 026
SEK
|
— | — | — | — |
2 774
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity | — | — |
356 005
SEK
|
— | — |
633,000
SEK
|
— | — |
356 638
SEK
|
— |
325 860
SEK
|
— | — | — | — | — |
1 519
SEK
|
— | — |
324 342
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Increase through other contributions by owners, equity | — | — |
380 237
SEK
|
— | — |
633,000
SEK
|
— | — |
380 870
SEK
|
— |
346 444
SEK
|
— | — | — | — | — |
1 519
SEK
|
— | — |
344 926
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Decrease through other distributions to owners, equity | — | — |
24 231
SEK
|
— | — | — | — | — |
24 231
SEK
|
— |
20 584
SEK
|
— | — | — | — | — | — | — | — |
20 584
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — | — | — | — | — | — | — | — | — | — |
24 970
SEK
|
— | — | — | — | — | — | — | — | — |
24 970
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — |
4 547
SEK
|
— | — |
4,000
SEK
|
— | — |
4 551
SEK
|
— |
1 296
SEK
|
— | — | — | — | — |
3,000
SEK
|
— | — |
1 293
SEK
|
— | — | — | — | — | — | — | — | — | — | — |