Statement Of Financial Position [Abstract]

CMC Markets PLC - Filing #3479906

Concept	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31	As at 2021-03-31
Statement of financial position [abstract]
Assets [abstract]
Property, plant and equipment	22 ,7 71 GBP	—	—	—	—	—	—	—	—	—	—	—	2 3 ,170 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Current tax assets	9,066,000 GBP	—	—	—	—	—	—	—	—	—	—	—	1,6 49 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Deferred tax assets	4,76 8 GBP	—	—	—	—	—	—	—	—	—	—	—	6,022,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	146 , 21 8 GBP	—	—	—	—	—	—	—	—	—	—	—	176 , 57 8 GBP	—	—	—	—	—	11 8 ,92 1 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Assets	586,422,000 GBP	—	—	—	—	—	—	—	—	—	—	—	6 46 ,810 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	70, 57 3 GBP	—	—	—	—	—	—	—	—	—	—	—	7 3 ,1 9 3 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Retained earnings	306,349,000 GBP	—	—	—	—	—	—	—	—	—	—	—	3 26 , 242 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Share premium	46 ,236 GBP	—	—	—	—	—	—	—	—	—	—	—	46, 236 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Treasury shares	1,509,000 GBP	—	—	—	—	—	—	—	—	—	—	—	1, 0 9 4 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other reserves	50 , 53 5 GBP	—	—	—	—	—	—	—	—	—	—	—	75 ,9 80 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity	37 4,015 GBP	46,236,000 GBP	70, 573 GBP	1,509,000 GBP	2 ,901 GBP	306, 349 GBP	50 ,5 3 5 GBP	2 81 GBP	1 ,094 GBP	7 3 ,1 9 3 GBP	46,236,000 GBP	3 26, 242 GBP	36 8 ,878 GBP	75,980,000 GBP	— GBP	3 82 GBP	329, 730 GBP	49,334,000 GBP	39 9,549 GBP	49,334,000 GBP	73, 29 9 GBP	4 6,23 6 GBP	— GBP	— GBP	— GBP	— GBP	— GBP	3 82 GBP	73, 29 9 GBP	— GBP	330,698,000 GBP	9 68 GBP	4 0 0 , 517 GBP	9 68 GBP	4 6,23 6 GBP
Liabilities [abstract]
Current tax liabilities	431,000 GBP	—	—	—	—	—	—	—	—	—	—	—	1 ,729 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Deferred tax liabilities	4,012,000 GBP	—	—	—	—	—	—	—	—	—	—	—	3, 309 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Liabilities	212 , 407 GBP	—	—	—	—	—	—	—	—	—	—	—	2 7 7, 9 3 2 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities	586,422,000 GBP	—	—	—	—	—	—	—	—	—	—	—	6 46 ,810 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—