Statement Of Changes In Equity [Abstract]

SalMar ASA - Filing #2581189

Concept	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	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	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	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	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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through change in equity of subsidiaries, equity	0 NOK	0 NOK	10,907,000 NOK	3,753,000 NOK	0 NOK	7,154,000 NOK	0 NOK	0 NOK	7,154,000 NOK	0 NOK	0 NOK	0 NOK	—	—	—	—	—	—	—	—	—	—	—	—
Decrease (increase) through tax on share-based payment transactions, equity	0 NOK	0 NOK	2,838,000 NOK	0 NOK	0 NOK	0 NOK	0 NOK	0 NOK	2,838,000 NOK	0 NOK	0 NOK	2,838,000 NOK	1,000 NOK	0 NOK	0 NOK	1,137,000 NOK	1,137,000 NOK	0 NOK	0 NOK	0 NOK	0 NOK	0 NOK	0 NOK	1,136,000 NOK
Increase (decrease) through transactions with owners, equity	3,159,000 NOK	6,835,000 NOK	4,638,899,000 NOK	2,068,561,000 NOK	0 NOK	6,572,456,000 NOK	10,093,000 NOK	0 NOK	2,570,338,000 NOK	9,080,228,000 NOK	0 NOK	48,797,000 NOK	1,111,405,000 NOK	0 NOK	32,000 NOK	1,859,574,000 NOK	874,969,000 NOK	0 NOK	2,686,674,000 NOK	0 NOK	0 NOK	1,125,000 NOK	46,711,000 NOK	1,986,374,000 NOK
Purchase of treasury shares	8,000 NOK	0 NOK	11,544,000 NOK	0 NOK	0 NOK	0 NOK	0 NOK	0 NOK	11,544,000 NOK	11,536,000 NOK	0 NOK	0 NOK	—	—	—	—	—	—	—	—	—	—	—	—
Share issue related cost	0 NOK	0 NOK	305,000 NOK	0 NOK	0 NOK	67,000 NOK	0 NOK	0 NOK	305,000 NOK	238,000 NOK	0 NOK	0 NOK	0 NOK	0 NOK	0 NOK	0 NOK	21,201,000 NOK	0 NOK	21,201,000 NOK	0 NOK	0 NOK	0 NOK	0 NOK	21,201,000 NOK