Statement Of Changes In Equity [Abstract]

Chemring Group PLC - Filing #3476158

Concept	As at 2022-10-31	As at 2022-10-31	As at 2022-10-31	As at 2022-10-31	As at 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	As at 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	As at 2021-10-31	As at 2021-10-31	As at 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	As at 2021-10-31	As at 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	As at 2021-10-31	As at 2021-10-31	2020-11-01 to 2021-10-31	As at 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	As at 2021-10-31	As at 2021-10-31	As at 2021-10-31	As at 2021-10-31	As at 2021-10-31	As at 2021-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	7,500,000 GBP	418,100,000 GBP	2,800,000 GBP	307,700,000 GBP	87,200,000 GBP	—	—	—	—	12,900,000 GBP	—	—	—	—	352,800,000 GBP	27,100,000 GBP	2,800,000 GBP	—	—	—	—	307,100,000 GBP	— GBP	—	—	—	27,100,000 GBP	900,000 GBP	—	307,100,000 GBP	—	—	12,900,000 GBP	2,800,000 GBP	12,900,000 GBP	57,100,000 GBP	352,800,000 GBP	56,200,000 GBP	2,800,000 GBP	18,900,000 GBP	28,000,000 GBP	1,000,000 GBP	306,700,000 GBP	12,900,000 GBP	329,600,000 GBP	2,900,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	47,400,000 GBP	— GBP	47,400,000 GBP	— GBP	—	— GBP	56,800,000 GBP	9,400,000 GBP	— GBP	—	—	—	— GBP	— GBP	41,500,000 GBP	41,500,000 GBP	—	—	— GBP	— GBP	— GBP	—	—	47,600,000 GBP	—	6,100,000 GBP	— GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	—	—	—	80,500,000 GBP	— GBP	45,900,000 GBP	34,600,000 GBP	—	— GBP	—	—	— GBP	—	—	—	— GBP	8,200,000 GBP	37,300,000 GBP	45,500,000 GBP	—	—	— GBP	— GBP	— GBP	—	—	—	—	—	— GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Issue of equity	—	—	—	—	—	600,000 GBP	600,000 GBP	— GBP	— GBP	—	— GBP	—	—	— GBP	—	—	—	— GBP	— GBP	400,000 GBP	— GBP	—	—	400,000 GBP	— GBP	— GBP	—	—	—	—	—	— GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	—	—	—	14,400,000 GBP	— GBP	14,400,000 GBP	— GBP	—	— GBP	—	—	— GBP	—	—	—	— GBP	— GBP	11,900,000 GBP	11,900,000 GBP	—	—	— GBP	— GBP	— GBP	—	—	—	—	—	— GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	— GBP	— GBP	— GBP	2,900,000 GBP	—	—	— GBP	2,900,000 GBP	— GBP	—	—	—	—	—	— GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	—	—	—	—	5,600,000 GBP	— GBP	5,600,000 GBP	— GBP	—	— GBP	—	—	— GBP	—	—	—	— GBP	— GBP	4,500,000 GBP	4,500,000 GBP	—	—	— GBP	— GBP	— GBP	—	—	—	—	—	— GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—