Analysis Of Income And Expense [Abstract]

Austevoll Seafood ASA - Filing #2613440

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	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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Material income and expense [abstract]
Miscellaneous other operating expense	—	—	—	—	—	—	3,651,000 NOK	—	—	—	2,088,000 NOK	—	—	—	—	—
Expenses by nature [abstract]
Raw materials and consumables used	—	—	—	—	—	—	14,109,000 NOK	—	—	—	13,079,000 NOK	—	—	—	—	—
Classes of employee benefits expense [abstract]
Employee benefits expense	—	—	—	—	—	—	4,064,000 NOK	—	—	—	3,605,000 NOK	—	—	—	—	—
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Depreciation expense	—	—	—	—	—	—	968,000,000 NOK	—	—	—	929,000,000 NOK	—	—	—	—	—
Amortisation expense	—	—	—	—	—	—	45,000,000 NOK	—	—	—	48,000,000 NOK	—	—	—	—	—
Impairment loss (reversal of impairment loss) recognised in profit or loss	—	—	—	—	—	—	13,000,000 NOK	—	—	—	3,000,000 NOK	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [abstract]
Disclosure of attribution of expenses by nature to their function [line items]
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations	—	—	—	—	—	—	76,000,000 NOK	—	—	—	139,000,000 NOK	—	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	—	—	—	—	—	394,000,000 NOK	—	—	—	250,000,000 NOK	—	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract]
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, before tax	—	—	—	—	—	—	0 NOK	—	—	—	0 NOK	—	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax	—	—	—	—	—	—	1,000,000 NOK	—	—	—	5,000,000 NOK	—	—	—	—	—
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	—	—	—	—	—	0 NOK	—	—	—	0 NOK	—	—	—	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	—	—	—	—	—	2,000,000 NOK	—	—	—	4,000,000 NOK	—	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	1,450,000 NOK	0 NOK	63,000,000 NOK	0 NOK	0 NOK	79,000,000 NOK	3,420,000 NOK	1,987,000 NOK	500,000,000 NOK	0 NOK	648,000,000 NOK	129,000,000 NOK	312,000,000 NOK	0 NOK	34,000,000 NOK	0 NOK
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	1,970,000 NOK	—	—	—	336,000,000 NOK	—	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	1,450,000 NOK	—	—	—	312,000,000 NOK	—	—	—	—	—