Statement Of Changes In Equity [Abstract]

Orion Oyj - Filing #2161071

Concept	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 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	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	2023-01-01 to 2023-12-31	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	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	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	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	20,900,000 EUR	—	—	—	890,100,000 EUR	802,900,000 EUR	—	810,000,000 EUR	—	—	—	92,200,000 EUR	9,800,000 EUR	28,000,000 EUR	4,600,000 EUR	—	—	—	—	908,100,000 EUR	37,100,000 EUR	—	823,300,000 EUR	821,100,000 EUR	34,800,000 EUR	92,200,000 EUR	10,800,000 EUR	3,300,000 EUR	—	—	—	—	18,200,000 EUR	678,900,000 EUR	747,900,000 EUR	0 EUR	660,700,000 EUR	3,300,000 EUR	8,400,000 EUR	92,200,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	0 EUR	216,800,000 EUR	0 EUR	—	—	216,800,000 EUR	—	216,800,000 EUR	0 EUR	0 EUR	—	—	—	—	0 EUR	0 EUR	0 EUR	349,500,000 EUR	—	—	349,500,000 EUR	—	—	—	—	—	—	0 EUR	349,500,000 EUR	0 EUR	0 EUR	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	16,500,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	34,200,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	200,300,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	383,700,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	0 EUR	224,900,000 EUR	0 EUR	—	—	224,900,000 EUR	—	224,900,000 EUR	0 EUR	0 EUR	—	—	—	—	0 EUR	0 EUR	0 EUR	211,200,000 EUR	—	—	211,200,000 EUR	—	—	—	—	—	—	0 EUR	211,200,000 EUR	0 EUR	0 EUR	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	0 EUR	0 EUR	0 EUR	—	—	1,300,000 EUR	—	1,300,000 EUR	0 EUR	0 EUR	—	—	—	—	1,300,000 EUR	0 EUR	0 EUR	0 EUR	—	—	0 EUR	—	—	—	—	—	—	0 EUR	0 EUR	0 EUR	0 EUR	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	6,800,000 EUR	6,600,000 EUR	0 EUR	—	—	6,600,000 EUR	—	200,000 EUR	0 EUR	0 EUR	—	—	—	—	0 EUR	0 EUR	1,300,000 EUR	5,700,000 EUR	—	—	4,300,000 EUR	—	—	—	—	—	—	0 EUR	5,700,000 EUR	0 EUR	0 EUR	—	—	—	—	—	—	—	—