Statement Of Comprehensive Income [Abstract]

Kingspan Group Plc - Filing #1850974

Concept	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	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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	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	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	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31
Statement of 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 [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	- EUR	- EUR	20,300,000 EUR	20,300,000 EUR	- EUR	- EUR	- EUR	- EUR	- EUR	20,300,000 EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	21,500,000 EUR	- EUR	- EUR	- EUR	- EUR	- EUR	21,500,000 EUR	21,500,000 EUR
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Cash flow hedges [abstract]
Other comprehensive income, before tax, cash flow hedges	—	—	—	—	—	—	—	—	—	—	—	—	—	- EUR	300,000 EUR	- EUR	- EUR	- EUR	300,000 EUR	- EUR	- EUR	- EUR	- EUR	- EUR	300,000 EUR	- EUR
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	- EUR	- EUR	4,900,000 EUR	4,900,000 EUR	- EUR	- EUR	- EUR	- EUR	- EUR	4,900,000 EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	5,500,000 EUR	- EUR	- EUR	- EUR	- EUR	- EUR	5,500,000 EUR	5,500,000 EUR
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]
Income tax relating to cash flow hedges included in other comprehensive income	—	—	—	—	—	—	—	—	—	—	—	—	—	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- EUR	- 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
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	521,300,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	691,800,000 EUR	—
Comprehensive income, attributable to non-controlling interests	—	—	22,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	18,200,000 EUR	—