Statement Of Changes In Equity [Abstract]

Grafton Group - Filing #5878403

Concept	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	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	As at 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	As at 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	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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	1,655,801,000 GBP	—	1 ,332 ,9 92 GBP	1 2,1 8 6 GBP	6 ,562 GBP	2 ,1 9 5 GBP	—	—	—	—	—	223,861,000 GBP	—	7, 0 9 4 GBP	75,282,000 GBP	4, 3 6 5 GBP	6,000 GBP	—	1 , 74 5 ,5 7 9 GBP	—	—	—	—	12 ,375 GBP	—	—	—	—	8, 6 47 GBP	22 1,975 GBP	1,38 9 GBP	1,4 11,0 53 GBP	5 ,1 8 5 GBP	7, 8 7 0 GBP	8 7, 4 9 2 GBP	3 7 GBP	—	—	3 , 8 9 7 GBP	1,413,7 37 GBP	643,000 GBP	12,51 9 GBP	1 ,7 1 9,5 9 9 GBP	8,000 GBP	11,837,000 GBP	2 1 9, 4 47 GBP	5 6,751 GBP	8,570,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	1 4 8,7 23 GBP	– GBP	—	– GBP	—	—	—	—	– GBP	1 4 8,7 23 GBP	– GBP	– GBP	– GBP	—	– GBP	—	—	—	—	– GBP	—	– GBP	– GBP	2 08,618 GBP	2 08,618 GBP	—	– GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	1 0,8 6 2 GBP	– GBP	—	– GBP	—	—	—	—	– GBP	1,317,000 GBP	– GBP	– GBP	12,210,000 GBP	—	– GBP	—	—	—	—	31,000 GBP	—	– GBP	– GBP	28 , 230 GBP	2 ,4 82 GBP	—	29,000 GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	– GBP	3 0 , 74 1 GBP	—	—	—	—	—	—	—	—	—	—
Comprehensive income	137 ,861 GBP	– GBP	—	– GBP	—	—	—	—	– GBP	150, 040 GBP	– GBP	– GBP	12,210,000 GBP	—	– GBP	—	—	—	—	31,000 GBP	—	– GBP	– GBP	2 36,848 GBP	2 0 6 ,1 3 6 GBP	—	29,000 GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	– GBP	3 0 , 74 1 GBP	—	—	—	—	—	—	—	—	—	—
Issue of equity	1,916,000 GBP	– GBP	—	– GBP	—	—	—	—	– GBP	– GBP	1,886,000 GBP	– GBP	– GBP	—	30,000 GBP	—	—	—	—	– GBP	—	46,000 GBP	– GBP	2 , 5 74 GBP	– GBP	—	– GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	2,528,000 GBP	– GBP	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	72,5 6 9 GBP	– GBP	—	– GBP	—	—	—	—	– GBP	72 ,56 9 GBP	– GBP	– GBP	– GBP	—	– GBP	—	—	—	—	– GBP	—	– GBP	– GBP	73,868,000 GBP	73, 868 GBP	—	– GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	– GBP	6 87 GBP	—	– GBP	—	—	—	—	– GBP	687,000 GBP	– GBP	– GBP	– GBP	—	– GBP	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	2 ,1 2 7 GBP	– GBP	—	– GBP	—	—	—	—	2 ,1 2 7 GBP	– GBP	– GBP	– GBP	– GBP	—	– GBP	—	—	—	—	– GBP	—	– GBP	– GBP	4 ,7 1 9 GBP	– GBP	—	– GBP	4,7 1 9 GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—