Disclosure Of First-Time Adoption [Text Block]

FORTERRA PLC - Filing #1590385

Concept	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31
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	4,600,000 GBP	213,400,000 GBP	—	23,900,000 GBP	—	—	234,800,000 GBP	200,000 GBP	—	2,300,000 GBP	—	—	—	1 62.3 GBP	– GBP	—	2,300,000 GBP	—	—	2,000,000 GBP	4 1.5 GBP	—	—	204,100,000 GBP	– GBP	156,200,000 GBP	1 57 .8 GBP	3,600,000 GBP	– GBP	2,000,000 GBP
Comprehensive income	—	—	200,000 GBP	—	– GBP	– GBP	—	—	– GBP	—	45,300,000 GBP	45,500,000 GBP	5,600,000 GBP	—	—	– GBP	—	5,600,000 GBP	– GBP	—	—	– GBP	– GBP	—	—	—	—	—	—	—
Profit (loss)	—	—	– GBP	—	– GBP	– GBP	—	—	– GBP	—	45,500,000 GBP	45,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—