Statement Of Changes In Equity [Abstract]

Close Brothers Group PLC - Filing #3479184

Concept	As at 2022-07-31	As at 2022-07-31	As at 2022-07-31	As at 2022-07-31	2021-08-01 to 2022-07-31	2021-08-01 to 2022-07-31	As at 2022-07-31	As at 2022-07-31	2021-08-01 to 2022-07-31	2021-08-01 to 2022-07-31	As at 2022-07-31	As at 2022-07-31	2021-08-01 to 2022-07-31	As at 2022-07-31	2021-08-01 to 2022-07-31	2021-08-01 to 2022-07-31	2021-08-01 to 2022-07-31	2021-08-01 to 2022-07-31	2020-08-01 to 2021-07-31	2020-08-01 to 2021-07-31	As at 2021-07-31	As at 2021-07-31	As at 2021-07-31	As at 2021-07-31	As at 2021-07-31	As at 2021-07-31	2020-08-01 to 2021-07-31	2020-08-01 to 2021-07-31	2020-08-01 to 2021-07-31	2020-08-01 to 2021-07-31	2020-08-01 to 2021-07-31	2020-08-01 to 2021-07-31	2020-08-01 to 2021-07-31	As at 2021-07-31	As at 2021-07-31	As at 2021-07-31	As at 2020-07-31	As at 2020-07-31	As at 2020-07-31	As at 2020-07-31	As at 2020-07-31	As at 2020-07-31	As at 2020-07-31	As at 2020-07-31	As at 2020-07-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	38,000,000 GBP	1,628,400,000 GBP	21,700,000 GBP	1,657,500,000 GBP	—	—	29,200,000 GBP	100,000 GBP	—	—	1,500,000 GBP	1,657,500,000 GBP	—	– GBP	—	—	—	—	—	—	1,569,300,000 GBP	800,000 GBP	22,400,000 GBP	1,000,000 GBP	1,570,300,000 GBP	300,000 GBP	—	—	—	—	—	—	—	38,000,000 GBP	1,555,500,000 GBP	1,300,000 GBP	1,300,000 GBP	1,000,000 GBP	38,000,000 GBP	1,449,600,000 GBP	1,450,600,000 GBP	15,600,000 GBP	1,435,000,000 GBP	200,000 GBP	5,700,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	– GBP	165,200,000 GBP	—	—	– GBP	– GBP	—	—	– GBP	—	165,200,000 GBP	– GBP	165,200,000 GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	202,100,000 GBP	– GBP	202,100,000 GBP	– GBP	– GBP	– GBP	202,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	– GBP	21,300,000 GBP	—	—	700,000 GBP	– GBP	—	—	22,000,000 GBP	—	21,300,000 GBP	– GBP	200,000 GBP	200,000 GBP	– GBP	– GBP	—	—	—	—	—	—	100,000 GBP	– GBP	5,900,000 GBP	– GBP	600,000 GBP	5,400,000 GBP	5,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	—	—	– GBP	186,500,000 GBP	—	—	700,000 GBP	– GBP	—	—	22,000,000 GBP	—	186,500,000 GBP	– GBP	165,400,000 GBP	200,000 GBP	– GBP	– GBP	—	—	—	—	—	—	202,000,000 GBP	– GBP	208,000,000 GBP	– GBP	600,000 GBP	5,400,000 GBP	208,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	—	—	– GBP	95,500,000 GBP	—	—	– GBP	– GBP	—	—	– GBP	—	95,500,000 GBP	– GBP	95,500,000 GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	86,600,000 GBP	– GBP	86,600,000 GBP	– GBP	– GBP	– GBP	86,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	—	—	—	1,000,000 GBP	1,900,000 GBP	—	—	– GBP	2,200,000 GBP	—	—	– GBP	—	2,900,000 GBP	– GBP	4,100,000 GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	3,700,000 GBP	4,700,000 GBP	1,000,000 GBP	– GBP	– GBP	– GBP	1,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—