Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2020-01-01 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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 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 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||
| Equity | — |
1 972 418
SEK
|
— | — | — |
2,000
SEK
|
20 196
SEK
|
25 697
SEK
|
1 972 416
SEK
|
1 153 793
SEK
|
— | — | — | — |
398 957
SEK
|
373 773
SEK
|
196 273
SEK
|
1 154 008
SEK
|
— | — |
1 877 367
SEK
|
— | — | — | — |
1 877 365
SEK
|
— |
27,000
SEK
|
20 196
SEK
|
2,000
SEK
|
506 915
SEK
|
— |
2,000
SEK
|
1 149 483
SEK
|
1 746 243
SEK
|
20 196
SEK
|
398 855
SEK
|
179 730
SEK
|
2 021
SEK
|
1 746 245
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — |
373 773
SEK
|
— | — | — | — | — | — |
373 773
SEK
|
— |
373 773
SEK
|
— | — | — | — | — | — |
196 273
SEK
|
— | — | — |
196 273
SEK
|
— | — | — | — | — | — | — |
196 273
SEK
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
0
SEK
|
— |
0
SEK
|
399 495
SEK
|
0
SEK
|
— | — | — | — | — |
399 495
SEK
|
25 722
SEK
|
373 773
SEK
|
0
SEK
|
— | — | — | — |
0
SEK
|
198 267
SEK
|
— | — |
0
SEK
|
196 273
SEK
|
1 994
SEK
|
— |
0
SEK
|
— | — | — | — |
198 267
SEK
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
301 331
SEK
|
— | — |
301 331
SEK
|
— | — | — | — | — | — |
301 331
SEK
|
— | — | — | — | — | — | — | — |
68 870
SEK
|
— |
68 870
SEK
|
— | — | — | — | — | — | — | — | — |
68 870
SEK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — |
2 15
SEK
|
— | — | — | — | — | — |
21 5
SEK
|
— | — |
2 15
SEK
|
— | — | — | — |
4 525
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |