Disclosure Of First-Time Adoption [Text Block]

FORTERRA PLC - Filing #2019096

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	2023-01-01 to 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	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	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 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
Disclosure of first-time adoption [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of comparative information prepared under previous GAAP [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of comparative information prepared under previous GAAP [abstract]
Disclosure of comparative information prepared under previous GAAP [line items]
Equity	—	—	207,800,000 GBP	—	—	219,800,000 GBP	200,000 GBP	– GBP	—	—	2,100,000 GBP	14,200,000 GBP	100,000 GBP	—	220,500,000 GBP	—	—	—	—	—	—	—	– GBP	200,000 GBP	233,400,000 GBP	15,800,000 GBP	2,100,000 GBP	600,000 GBP	4,600,000 GBP	213,400,000 GBP	– GBP	23,900,000 GBP	234,800,000 GBP	200,000 GBP	2,300,000 GBP
Comprehensive income	– GBP	12,100,000 GBP	—	– GBP	– GBP	—	—	—	12,800,000 GBP	– GBP	—	—	—	700,000 GBP	—	– GBP	– GBP	– GBP	59,600,000 GBP	58,800,000 GBP	800,000 GBP	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Profit (loss)	– GBP	12,800,000 GBP	—	– GBP	– GBP	—	—	—	12,800,000 GBP	– GBP	—	—	—	– GBP	—	– GBP	– GBP	– GBP	58,800,000 GBP	58,800,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—