Analysis Of Income And Expense [Abstract]

Chemring Group PLC - Filing #3476158

Concept	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	442,800,000 GBP	442,800,000 GBP	— GBP	—	—	—	—	—	—	—	—	393,300,000 GBP	—	— GBP	—	393,300,000 GBP	—
Miscellaneous other comprehensive income [abstract]
Income tax relating to exchange differences on translation of foreign operations and hedges of net investments in foreign operations included in other comprehensive income [abstract]
Income tax relating to exchange differences on translation of foreign operations included in other comprehensive income	—	400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	100,000 GBP	—
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to components of other comprehensive income	— GBP	400,000 GBP	—	—	— GBP	— GBP	800,000 GBP	400,000 GBP	— GBP	— GBP	— GBP	— GBP	—	— GBP	—	100,000 GBP	2,100,000 GBP	2,200,000 GBP
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	— GBP	80,500,000 GBP	—	—	— GBP	— GBP	45,900,000 GBP	34,600,000 GBP	— GBP	— GBP	— GBP	— GBP	—	— GBP	—	8,200,000 GBP	37,300,000 GBP	45,500,000 GBP
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	80,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	37,300,000 GBP	—