Statement Of Changes In Equity [Abstract]

Kingspan Group Plc - Filing #5615151

Concept	As at 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	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	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	As at 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	As at 2024-12-31	As at 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	2023-01-01 to 2023-12-31	As at 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	2023-01-01 to 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	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 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	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	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	424,100,000 EUR	—	—	—	—	—	700,000 EUR	4,6 39 .8 EUR	—	215,900,000 EUR	—	24,000,000 EUR	298,300,000 EUR	54,600,000 EUR	186,800,000 EUR	—	—	0. 7 EUR	—	4,292,500,000 EUR	—	—	—	—	300,000 EUR	12,300,000 EUR	64,300,000 EUR	4 ,590.8 EUR	—	—	3,9 47 .8 EUR	—	—	240,300,000 EUR	99 .8 EUR	—	4,086,600,000 EUR	0. 7 EUR	—	700,000 EUR	—	—	—	—	129 .3 EUR	—	23,900,000 EUR	158,400,000 EUR	—	55,800,000 EUR	- EUR	3 ,848.0 EUR	- EUR	61,300,000 EUR	—	3,395,500,000 EUR	20 7 .2 EUR	700,000 EUR	75,800,000 EUR	55,100,000 EUR	3 ,527 .6 EUR	56,900,000 EUR	3,319 .7 EUR	700,000 EUR	112,400,000 EUR	23,900,000 EUR	13 7 .2 EUR	600,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	- EUR	- EUR	665,500,000 EUR	- EUR	- EUR	—	—	- EUR	—	- EUR	—	—	—	—	665,500,000 EUR	- EUR	—	25 .3 EUR	—	690,800,000 EUR	- EUR	- EUR	- EUR	—	—	—	—	653,900,000 EUR	- EUR	—	- EUR	640,300,000 EUR	—	—	- EUR	—	—	13 .6 EUR	—	640,300,000 EUR	- EUR	- EUR	- EUR	—	- EUR	—	—	- EUR	—	—	—	—	—	- EUR	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	93,500,000 EUR	—	—	—	—	—	—	—	1 1.7 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	- EUR	- EUR	769. 8 EUR	- EUR	- EUR	—	—	- EUR	—	103 .8 EUR	—	—	—	—	665,700,000 EUR	- EUR	—	14,500,000 EUR	—	784 .3 EUR	- EUR	300,000 EUR	- EUR	—	—	—	—	642,200,000 EUR	- EUR	—	- EUR	626,400,000 EUR	—	—	- EUR	—	—	15,800,000 EUR	—	648,200,000 EUR	- EUR	- EUR	21,200,000 EUR	—	- EUR	—	—	- EUR	—	—	—	—	—	600,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	- EUR	- EUR	19 .9 EUR	- EUR	- EUR	—	—	- EUR	—	- EUR	—	—	—	—	- EUR	- EUR	—	- EUR	—	19 .9 EUR	19 .9 EUR	- EUR	- EUR	—	—	—	—	22,700,000 EUR	- EUR	—	- EUR	22,700,000 EUR	—	—	- EUR	—	—	- EUR	—	- EUR	- EUR	- EUR	- EUR	—	- EUR	—	—	22,700,000 EUR	—	—	—	—	—	- EUR	—	—	—	—	—	—	—	—	—	—	—	—	—