Statement Of Comprehensive Income [Abstract]

Bong - Filing #701576

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	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 comprehensive income [abstract]
Profit (loss)	1,626,000 SEK	—	2,818,000 SEK	4,444,000 SEK	65,129,000 SEK	65,604,000 SEK	475,000 SEK	—
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	—	—	17,468,000 SEK	17,468,000 SEK	9,099,000 SEK	9,099,000 SEK	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	- SEK	7,594,000 SEK	7,594,000 SEK	—	—	41,924,000 SEK	7,000 SEK	41,917,000 SEK
Cash flow hedges [abstract]
Other comprehensive income, net of tax, cash flow hedges	—	228,000 SEK	228,000 SEK	—	—	175,000 SEK	—	175,000 SEK
Other comprehensive income	—	—	24,551,000 SEK	—	—	50,752,000 SEK	—	—
Comprehensive income	—	—	27,369,000 SEK	—	—	116,356,000 SEK	—	—
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	28,995,000 SEK	—	—	115,881,000 SEK	—	—
Comprehensive income, attributable to non-controlling interests	—	—	1,626,000 SEK	—	—	475,000 SEK	—	—