Statement Of Comprehensive Income [Abstract]

Close Brothers Group PLC - Filing #1960465

Concept	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	2022-08-01 to 2023-07-31	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	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	2021-08-01 to 2022-07-31
Statement of comprehensive income [abstract]
Profit (loss)	– GBP	81,100,000 GBP	– GBP	81,100,000 GBP	– GBP	– GBP	81,100,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	165,200,000 GBP	165,200,000 GBP	– GBP	165,200,000 GBP
Other comprehensive income [abstract]
Other comprehensive income that will not be reclassified to profit or loss, net of tax	—	4,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	200,000 GBP	—	—	—
Other comprehensive income that will be reclassified to profit or loss, net of tax	—	10,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	21,100,000 GBP	—	—	—
Other comprehensive income	200,000 GBP	6,000,000 GBP	– GBP	4,100,000 GBP	2,800,000 GBP	– GBP	6,000,000 GBP	– GBP	12,700,000 GBP	700,000 GBP	– GBP	200,000 GBP	– GBP	22,000,000 GBP	21,300,000 GBP	200,000 GBP	– GBP	21,300,000 GBP
Comprehensive income	200,000 GBP	87,100,000 GBP	– GBP	77,000,000 GBP	2,800,000 GBP	– GBP	87,100,000 GBP	– GBP	12,700,000 GBP	700,000 GBP	– GBP	200,000 GBP	– GBP	22,000,000 GBP	186,500,000 GBP	165,400,000 GBP	– GBP	186,500,000 GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	87,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	186,500,000 GBP	—	—	—