Statement Of Changes In Equity [Abstract]

Kingspan Group Plc - Filing #1850974

Concept	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	2022-01-01 to 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	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	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	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	3,395,500,000 EUR	—	—	—	—	—	207,200,000 EUR	700,000 EUR	—	—	—	75,800,000 EUR	112,400,000 EUR	700,000 EUR	55,100,000 EUR	56,900,000 EUR	23,900,000 EUR	137,200,000 EUR	3,527,600,000 EUR	3,319,700,000 EUR	—	—	—	600,000 EUR	—	—	—	57,300,000 EUR	3,108,100,000 EUR	700,000 EUR	700,000 EUR	—	—	—	—	—	2,959,300,000 EUR	—	600,000 EUR	108,500,000 EUR	227,800,000 EUR	—	—	—	2,892,100,000 EUR	—	94,400,000 EUR	23,900,000 EUR	57,300,000 EUR	67,200,000 EUR	—	—	48,700,000 EUR	2,597,200,000 EUR	700,000 EUR	300,000 EUR	2,348,900,000 EUR	23,800,000 EUR	168,300,000 EUR	40,400,000 EUR	229,900,000 EUR	11,600,000 EUR	95,600,000 EUR	2,397,600,000 EUR	700,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	- EUR	- EUR	616,000,000 EUR	598,000,000 EUR	18,000,000 EUR	—	—	- EUR	- EUR	- EUR	—	—	—	—	—	—	—	—	—	- EUR	598,000,000 EUR	- EUR	—	- EUR	- EUR	16,500,000 EUR	—	—	—	—	- EUR	- EUR	- EUR	- EUR	554,100,000 EUR	—	- EUR	—	—	—	- EUR	- EUR	- EUR	—	- EUR	—	—	—	—	570,600,000 EUR	554,100,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	72,700,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	139,400,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	- EUR	- EUR	543,300,000 EUR	550,000,000 EUR	22,000,000 EUR	—	—	- EUR	- EUR	- EUR	—	—	—	—	—	—	—	—	—	- EUR	521,300,000 EUR	- EUR	—	- EUR	28,700,000 EUR	18,200,000 EUR	—	—	—	—	300,000 EUR	- EUR	- EUR	- EUR	691,800,000 EUR	—	- EUR	—	—	—	- EUR	- EUR	121,400,000 EUR	—	- EUR	—	—	—	—	710,000,000 EUR	570,100,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	- EUR	- EUR	18,400,000 EUR	- EUR	- EUR	—	—	- EUR	- EUR	- EUR	—	—	—	—	—	—	—	—	—	- EUR	18,400,000 EUR	18,400,000 EUR	—	- EUR	- EUR	- EUR	—	—	—	—	- EUR	- EUR	- EUR	- EUR	17,800,000 EUR	—	- EUR	—	—	—	17,700,000 EUR	- EUR	- EUR	—	100,000 EUR	—	—	—	—	17,800,000 EUR	- EUR	—	—	—	—	—	—	—	—	—	—	—	—	—