Statement Of Comprehensive Income [Abstract]

Morgan Advanced Materials PLC - Filing #2015238

Concept	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	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	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	2022-01-01 to 2022-12-31
Statement of comprehensive income [abstract]
Profit (loss)	56,300,000 GBP	47,300,000 GBP	– GBP	– GBP	9,000,000 GBP	47,300,000 GBP	– GBP	– GBP	– GBP	– GBP	76,900,000 GBP	20,600,000 GBP	– GBP	– GBP	– GBP	96,700,000 GBP	88,000,000 GBP	8,700,000 GBP	– GBP	– GBP	3,300,000 GBP	100,000,000 GBP	– GBP	88,000,000 GBP	– GBP	– GBP
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	12,000,000 GBP	12,000,000 GBP	– GBP	– GBP	– GBP	12,000,000 GBP	– GBP	– GBP	– GBP	– GBP	—	—	– GBP	– GBP	– GBP	2,100,000 GBP	2,100,000 GBP	– GBP	– GBP	– GBP	—	—	– GBP	2,100,000 GBP	– GBP	– GBP
Other comprehensive income that will not be reclassified to profit or loss, net of tax	12,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2,100,000 GBP	—	—	—	—	—	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Gains (losses) on exchange differences on translation of foreign operations, net of tax	32,800,000 GBP	29,600,000 GBP	– GBP	– GBP	3,200,000 GBP	– GBP	– GBP	29,600,000 GBP	– GBP	– GBP	—	—	– GBP	– GBP	– GBP	17,500,000 GBP	– GBP	800,000 GBP	– GBP	– GBP	—	—	– GBP	16,700,000 GBP	– GBP	16,700,000 GBP
Cash flow hedges [abstract]
Gains (losses) on cash flow hedges, net of tax	1,300,000 GBP	1,300,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	—	—	1,300,000 GBP	– GBP	– GBP	100,000 GBP	– GBP	– GBP	100,000 GBP	– GBP	—	—	– GBP	100,000 GBP	– GBP	– GBP
Reclassification adjustments on cash flow hedges, net of tax	200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	100,000 GBP	—	—	—	—	—	—	—	—	—	—
Other comprehensive income that will be reclassified to profit or loss, net of tax	31,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	17,400,000 GBP	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	43,800,000 GBP	40,600,000 GBP	– GBP	– GBP	3,200,000 GBP	12,000,000 GBP	– GBP	29,900,000 GBP	– GBP	– GBP	—	—	1,300,000 GBP	– GBP	– GBP	19,500,000 GBP	2,100,000 GBP	800,000 GBP	100,000 GBP	– GBP	—	—	– GBP	18,700,000 GBP	– GBP	16,700,000 GBP
Comprehensive income	12,500,000 GBP	6,700,000 GBP	– GBP	– GBP	5,800,000 GBP	35,300,000 GBP	– GBP	29,900,000 GBP	– GBP	– GBP	—	—	1,300,000 GBP	– GBP	– GBP	116,200,000 GBP	90,100,000 GBP	9,500,000 GBP	100,000 GBP	– GBP	—	—	– GBP	106,700,000 GBP	– GBP	16,700,000 GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	6,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	106,700,000 GBP	—	—	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	5,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	9,500,000 GBP	—	—	—	—	—	—	—	—	—	—