Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||
| Equity | — |
1 335 310
SEK
|
— |
801 686
SEK
|
— | — |
211,000
SEK
|
— |
1 870
SEK
|
53 400
SEK
|
1 335 099
SEK
|
478 143
SEK
|
1 195 820
SEK
|
— | — | — |
269,000
SEK
|
591 493
SEK
|
1 870
SEK
|
124 045
SEK
|
1 195 551
SEK
|
478 143
SEK
|
— | — |
280 307
SEK
|
478 143
SEK
|
773 846
SEK
|
773 426
SEK
|
420,000
SEK
|
13 106
SEK
|
1 870
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||
| Profit (loss) |
403 861
SEK
|
— |
403 741
SEK
|
— |
121,000
SEK
|
403 741
SEK
|
— | — | — | — | — | — | — |
417 144
SEK
|
416 963
SEK
|
181,000
SEK
|
— | — | — | — | — | — |
416 963
SEK
|
— | — | — | — | — | — | — | — |
| Other comprehensive income |
70 645
SEK
|
— |
70 645
SEK
|
— | — | — | — |
70 645
SEK
|
— | — | — | — | — |
110 939
SEK
|
— | — | — | — | — | — | — | — |
110 939
SEK
|
110 939
SEK
|
— | — | — | — | — | — | — |
| Comprehensive income |
333 216
SEK
|
— |
333 096
SEK
|
— |
121,000
SEK
|
403 740
SEK
|
— |
70 645
SEK
|
— | — | — | — | — |
528 083
SEK
|
416 963
SEK
|
181,000
SEK
|
— | — | — | — | — | — |
527 902
SEK
|
110 939
SEK
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
205 847
SEK
|
— |
205 668
SEK
|
— |
179,000
SEK
|
205 668
SEK
|
— | — | — | — | — | — | — |
112 515
SEK
|
112 183
SEK
|
332,000
SEK
|
— | — | — | — | — | — |
112 183
SEK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
2 996
SEK
|
— |
2 996
SEK
|
— | — |
2 996
SEK
|
— | — | — | — | — | — | — |
666,000
SEK
|
666,000
SEK
|
— | — | — | — | — | — | — |
666,000
SEK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
9 125
SEK
|
— |
9 125
SEK
|
— | — |
9 125
SEK
|
— | — | — | — | — | — | — |
5 740
SEK
|
5 740
SEK
|
— | — | — | — | — | — | — |
5 740
SEK
|
— | — | — | — | — | — | — | — |