Statement Of Financial Position [Abstract]
| Concept |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Property, plant and equipment |
5 823 232
SEK
|
— | — | — | — | — |
1 254 625
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Investment property |
5 702 951
SEK
|
— | — | — | — | — |
1 188 900
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
59 780
SEK
|
— | — | — | — | — |
6 624
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
44 338
SEK
|
— | — | — | — | — |
6 166
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
667 438
SEK
|
— | — | — | — | — |
928 731
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
450,565,000
SEK
|
— | — | — | — | — |
925,410,000
SEK
|
— | — | — | — | — | — | — | — |
245 283
SEK
|
— | — |
| Assets |
7 396 131
SEK
|
— | — | — | — | — |
3 401 851
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital |
24 868
SEK
|
— | — | — | — | — |
24 649
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
1 786 096
SEK
|
— | — | — | — | — |
1 367 191
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Share premium |
293 105
SEK
|
— | — | — | — | — |
223 720
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
2 104 069
SEK
|
— | — | — | — | — |
1 615 560
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
376 710
SEK
|
— | — | — | — | — |
5 698
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
2 480 779
SEK
|
1 786 096
SEK
|
293 105
SEK
|
2 104 069
SEK
|
376 710
SEK
|
24 868
SEK
|
1 621 258
SEK
|
24 649
SEK
|
1 367 191
SEK
|
5 698
SEK
|
223 720
SEK
|
1 615 560
SEK
|
1 382 659
SEK
|
5 155
SEK
|
1 248 131
SEK
|
1 387 814
SEK
|
112 095
SEK
|
22 433
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Deferred tax liabilities |
174 501
SEK
|
— | — | — | — | — |
61 665
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
7 396 131
SEK
|
— | — | — | — | — |
3 401 851
SEK
|
— | — | — | — | — | — | — | — | — | — | — |