Statement Of Changes In Equity [Abstract]

Jupiter Fund Management PLC - Filing #2010066

Concept	2023-01-01 to 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	As at 2023-12-31	2023-01-01 to 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	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	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	2022-01-01 to 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	As at 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	—	—	789,500,000 GBP	—	—	527,000,000 GBP	—	250,300,000 GBP	—	– GBP	—	—	10,900,000 GBP	2,000,000 GBP	700,000 GBP	789,500,000 GBP	843,900,000 GBP	—	—	—	—	—	—	250,300,000 GBP	600,000 GBP	578,900,000 GBP	500,000 GBP	10,900,000 GBP	3,700,000 GBP	843,300,000 GBP	—	—	400,000 GBP	639,700,000 GBP	250,100,000 GBP	900,800,000 GBP	900,800,000 GBP	– GBP	300,000 GBP	11,100,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	– GBP	12,900,000 GBP	—	12,900,000 GBP	– GBP	—	– GBP	—	12,900,000 GBP	—	– GBP	– GBP	—	—	—	—	—	– GBP	– GBP	– GBP	47,900,000 GBP	47,300,000 GBP	600,000 GBP	—	—	—	—	—	—	—	47,300,000 GBP	– GBP	—	—	—	—	—	—	—	—
Other comprehensive income	– GBP	1,700,000 GBP	—	1,700,000 GBP	– GBP	—	– GBP	—	– GBP	—	1,700,000 GBP	– GBP	—	—	—	—	—	– GBP	– GBP	– GBP	3,400,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—	3,400,000 GBP	3,400,000 GBP	—	—	—	—	—	—	—	—
Comprehensive income	– GBP	14,600,000 GBP	—	14,600,000 GBP	– GBP	—	– GBP	—	12,900,000 GBP	—	1,700,000 GBP	– GBP	—	—	—	—	—	– GBP	– GBP	– GBP	51,300,000 GBP	47,300,000 GBP	600,000 GBP	—	—	—	—	—	—	—	50,700,000 GBP	3,400,000 GBP	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	– GBP	35,200,000 GBP	—	35,200,000 GBP	– GBP	—	– GBP	—	35,200,000 GBP	—	– GBP	– GBP	—	—	—	—	—	– GBP	– GBP	– GBP	90,200,000 GBP	90,200,000 GBP	– GBP	—	—	—	—	—	—	—	90,200,000 GBP	– GBP	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	– GBP	2,000,000 GBP	—	2,000,000 GBP	– GBP	—	– GBP	—	2,000,000 GBP	—	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	– GBP	18,500,000 GBP	—	18,500,000 GBP	– GBP	—	– GBP	—	18,500,000 GBP	—	– GBP	– GBP	—	—	—	—	—	– GBP	– GBP	– GBP	13,600,000 GBP	13,600,000 GBP	– GBP	—	—	—	—	—	—	—	13,600,000 GBP	– GBP	—	—	—	—	—	—	—	—