Statement Of Changes In Equity [Abstract]

Just Group PLC - Filing #1591568

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	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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Sale or issue of treasury shares	– GBP	– GBP	0. 2 GBP	0 .1 GBP	– GBP	– GBP	– GBP	100,000 GBP	– GBP	200,000 GBP	– GBP	0. 3 GBP	– GBP	– GBP	– GBP	0. 3 GBP	– GBP	– GBP	– GBP	300,000 GBP	– GBP	– GBP