Statement Of Comprehensive Income [Abstract]

Morgan Sindall Group PLC - Filing #1588159

Concept	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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	– GBP	– GBP	– GBP	97,900,000 GBP	97,900,000 GBP	45,400,000 GBP	– GBP	45,400,000 GBP	– GBP	– GBP
Other comprehensive income [abstract]
Other comprehensive income	– GBP	200,000 GBP	– GBP	200,000 GBP	– GBP	—	—	– GBP	—	—
Comprehensive income	– GBP	200,000 GBP	– GBP	97,700,000 GBP	97,900,000 GBP	45,400,000 GBP	– GBP	45,400,000 GBP	– GBP	– GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	97,700,000 GBP	—	—	—	45,400,000 GBP	—	—