Disclosure Of Analysis Of Other Comprehensive Income By Item [Text Block]

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	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
Disclosure of analysis of other comprehensive income by item [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of analysis of other comprehensive income by item [abstract]
Disclosure of analysis of other comprehensive income by item [line items]
Other comprehensive income, net of tax, cash flow hedges	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
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, 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