Statement Of Comprehensive Income [Abstract]

Bewi Invest AS - Filing #2614205

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	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	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	1,300,000 EUR	—	35,700,000 EUR	34,400,000 EUR	35,700,000 EUR	30,100,000 EUR	30,000,000 EUR	100,000 EUR	30,100,000 EUR	—
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	—	—	—	4,000,000 EUR	—	—	0 EUR	—	—	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to remeasurements of defined benefit plans included in other comprehensive income	—	—	—	800,000 EUR	—	—	0 EUR	—	—	—
Other comprehensive income	100,000 EUR	7,200,000 EUR	7,200,000 EUR	7,300,000 EUR	—	—	4,000,000 EUR	—	4,000,000 EUR	4,000,000 EUR
Comprehensive income	1,200,000 EUR	7,200,000 EUR	42,900,000 EUR	41,700,000 EUR	35,700,000 EUR	30,100,000 EUR	26,000,000 EUR	100,000 EUR	26,100,000 EUR	4,000,000 EUR
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	42,900,000 EUR	—	—	26,100,000 EUR	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	1,200,000 EUR	—	—	100,000 EUR	—	—	—