Statement Of Changes In Equity [Abstract]

Grafton Group - Filing #5878289

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 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	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	—	2,548,000 GBP	1,305,649,000 GBP	—	224,141,000 GBP	—	6,744,000 GBP	42,183,000 GBP	3,897,000 GBP	—	6,802,000 GBP	—	—	12,037,000 GBP	—	—	6,000 GBP	1,596,201,000 GBP	—	—	1,655,801,000 GBP	—	1,332,992,000 GBP	12,186,000 GBP	6,562,000 GBP	2,195,000 GBP	—	—	—	—	—	—	7,094,000 GBP	223,861,000 GBP	75,282,000 GBP	4,365,000 GBP	6,000 GBP	—	1,745,579,000 GBP	12,375,000 GBP	8,647,000 GBP	221,975,000 GBP	1,389,000 GBP	1,411,053,000 GBP	5,185,000 GBP	7,870,000 GBP	87,492,000 GBP	37,000 GBP
Changes in equity [abstract]
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	– 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	—	—	—	—	—	—	—	—	—	—
Issue of equity	– GBP	3,000 GBP	280,000 GBP	—	—	– GBP	—	– GBP	—	—	—	– GBP	—	– GBP	– GBP	—	283,000 GBP	– GBP	—	—	1,916,000 GBP	– GBP	—	– GBP	—	—	—	—	– GBP	– GBP	1,886,000 GBP	– GBP	– GBP	30,000 GBP	—	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	– GBP	– GBP	– GBP	—	—	– GBP	—	– GBP	—	—	—	73,190,000 GBP	—	– GBP	– GBP	—	73,190,000 GBP	– GBP	—	—	72,569,000 GBP	– GBP	—	– GBP	—	—	—	—	– GBP	72,569,000 GBP	– GBP	– GBP	– GBP	– GBP	—	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	162,000 GBP	– GBP	– GBP	—	—	– GBP	—	– GBP	—	—	—	162,000 GBP	—	– GBP	– GBP	—	– GBP	– GBP	—	—	– GBP	687,000 GBP	—	– GBP	—	—	—	—	– GBP	687,000 GBP	– GBP	– GBP	– GBP	– GBP	—	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	– GBP	– GBP	– GBP	—	—	– GBP	—	– GBP	—	—	—	– GBP	—	1,162,000 GBP	– GBP	—	1,162,000 GBP	– GBP	—	—	2,127,000 GBP	– GBP	—	– GBP	—	—	—	—	2,127,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	—	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—