Statement Of Comprehensive Income [Abstract]

Grafton Group - Filing #5878288

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	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
Statement of comprehensive income [abstract]
Profit (loss)	– GBP	– GBP	– GBP	– GBP	– GBP	122,013,000 GBP	– GBP	– GBP	122,013,000 GBP	– GBP	148,723,000 GBP	– GBP	– GBP	– GBP	148,723,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	—	—	—	—	—	—	—	—	5,439,000 GBP	—	1,320,000 GBP	—	—	—	—	—	—	—	—	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to remeasurements of defined benefit plans included in other comprehensive income	—	—	—	—	—	—	—	—	1,081,000 GBP	—	3,000 GBP	—	—	—	—	—	—	—	—	—
Other comprehensive income	– GBP	– GBP	– GBP	– GBP	33,099,000 GBP	4,358,000 GBP	– GBP	– GBP	28,741,000 GBP	– GBP	10,862,000 GBP	– GBP	– GBP	– GBP	1,317,000 GBP	– GBP	– GBP	12,210,000 GBP	– GBP	31,000 GBP
Comprehensive income	– GBP	– GBP	– GBP	– GBP	33,099,000 GBP	126,371,000 GBP	– GBP	– GBP	93,272,000 GBP	– GBP	137,861,000 GBP	– GBP	– GBP	– GBP	150,040,000 GBP	– GBP	– GBP	12,210,000 GBP	– GBP	31,000 GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	—	93,272,000 GBP	—	137,861,000 GBP	—	—	—	—	—	—	—	—	—