{
 "documentInfo": {
  "documentType": "https://xbrl.org/2021/xbrl-json",
  "features": {
   "xbrl:canonicalValues": true
  },
  "namespaces": {
   "chemringgroupplc": "http://chemringgroupplc.com/xbrl/2021",
   "ifrs-full": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full",
   "iso4217": "http://www.xbrl.org/2003/iso4217",
   "scheme": "http://standards.iso.org/iso/17442",
   "xbrl": "https://xbrl.org/2021",
   "xbrli": "http://www.xbrl.org/2003/instance"
  },
  "taxonomy": [
   "http://chemringgroupplc.com/xbrl/2021/chemringgroupplc-2022-10-31.xsd"
  ]
 },
 "facts": {
  "fact-1": {
   "value": "Chemring helps make the world a safer place. Across physical and digital environments, our exceptional teams deliver innovative technologies and products that detect and defeat ever-changing threats.",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "en",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00"
   }
  },
  "fact-6": {
   "value": "442800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-7": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-8": {
   "value": "442800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-9": {
   "value": "393300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-10": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-11": {
   "value": "393300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-12": {
   "value": "64000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-13": {
   "value": "-10700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-14": {
   "value": "53300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-15": {
   "value": "57500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-16": {
   "value": "-7100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-17": {
   "value": "50400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-18": {
   "value": "1500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-19": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-20": {
   "value": "1500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-21": {
   "value": "1600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-22": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-23": {
   "value": "1600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-24": {
   "value": "62500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-25": {
   "value": "-10700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-26": {
   "value": "51800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-27": {
   "value": "55900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-28": {
   "value": "-7100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-29": {
   "value": "48800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-30": {
   "value": "5700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-31": {
   "value": "-1300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-32": {
   "value": "4400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-33": {
   "value": "8300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-34": {
   "value": "-1000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-35": {
   "value": "7300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-36": {
   "value": "56800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-37": {
   "value": "-9400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-38": {
   "value": "47400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-39": {
   "value": "47600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-40": {
   "value": "-6100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:NonUnderlyingItemsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-41": {
   "value": "41500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-42": {
   "value": "0.202",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-43": {
   "value": "0.169",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-44": {
   "value": "0.169",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-45": {
   "value": "0.147",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-46": {
   "value": "0.197",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-47": {
   "value": "0.164",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-48": {
   "value": "0.165",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "chemringgroupplc:ConsolidatedIncomeStatementAxis": "chemringgroupplc:UnderlyingPerformanceMember",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-49": {
   "value": "0.144",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP/xbrli:shares"
   }
  },
  "fact-50": {
   "value": "47400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-51": {
   "value": "41500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-52": {
   "value": "-2300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-53": {
   "value": "6200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-54": {
   "value": "-800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-55": {
   "value": "2200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-56": {
   "value": "-1500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-57": {
   "value": "4000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-58": {
   "value": "35000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-59": {
   "value": "-8300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-60": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-61": {
   "value": "-100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-62": {
   "value": "34600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-63": {
   "value": "-8200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-64": {
   "value": "80500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-65": {
   "value": "37300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-66": {
   "value": "2800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-67": {
   "value": "307100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-68": {
   "value": "12900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-69": {
   "value": "-27100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-70": {
   "value": "57100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-71": {
   "value": "352800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-72": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-73": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-74": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-75": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-76": {
   "value": "47400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-77": {
   "value": "47400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-78": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-79": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-80": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-81": {
   "value": "35000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-82": {
   "value": "-2300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-83": {
   "value": "32700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-84": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-85": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-86": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-87": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-88": {
   "value": "-800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-89": {
   "value": "-400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-90": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-91": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-92": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-93": {
   "value": "34600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-94": {
   "value": "45900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-95": {
   "value": "80500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-96": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-97": {
   "value": "600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-98": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-99": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-100": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-101": {
   "value": "600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-102": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-103": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-104": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-105": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-106": {
   "value": "5600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-107": {
   "value": "5600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-108": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-109": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-110": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-111": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-112": {
   "value": "14400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-113": {
   "value": "14400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-114": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-115": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-116": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-117": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-118": {
   "value": "7000000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-119": {
   "value": "7000000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-120": {
   "value": "2800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-121": {
   "value": "307700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-122": {
   "value": "12900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-123": {
   "value": "7500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-124": {
   "value": "87200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-125": {
   "value": "418100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-126": {
   "value": "2800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-127": {
   "value": "306700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-128": {
   "value": "12900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-129": {
   "value": "1000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-130": {
   "value": "-18900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-131": {
   "value": "28000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-132": {
   "value": "-2900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-133": {
   "value": "329600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-134": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-135": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-136": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-137": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-138": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-139": {
   "value": "41500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-140": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-141": {
   "value": "41500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-142": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-143": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-144": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-145": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-146": {
   "value": "-8300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-147": {
   "value": "6200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-148": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-149": {
   "value": "-2100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-150": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-151": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-152": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-153": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-154": {
   "value": "-100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-155": {
   "value": "2200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-156": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-157": {
   "value": "2100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-158": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-159": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-160": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-161": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-162": {
   "value": "-8200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-163": {
   "value": "45500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-164": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-165": {
   "value": "37300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-166": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-167": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-168": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-169": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-170": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-171": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-172": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-173": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-174": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-175": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-176": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-177": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-178": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-179": {
   "value": "4500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-180": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-181": {
   "value": "4500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-182": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-183": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-184": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-185": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-186": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-187": {
   "value": "11900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-188": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-189": {
   "value": "11900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-190": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-191": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-192": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-193": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-194": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-195": {
   "value": "7100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-196": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-197": {
   "value": "7100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PurchaseOfSharesByEmployeeShareOwnershipPlanTrust",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-198": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-199": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-200": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-201": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-202": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-203": {
   "value": "-2900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-204": {
   "value": "2900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-205": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-206": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-207": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-208": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-209": {
   "value": "-100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-210": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-211": {
   "value": "100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-212": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-213": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:TransferBetweenReserves",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-214": {
   "value": "2800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-215": {
   "value": "307100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-216": {
   "value": "12900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:CapitalReserveMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-217": {
   "value": "900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RevaluationSurplusMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-218": {
   "value": "-27100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-219": {
   "value": "56200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-220": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-221": {
   "value": "352800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:PreviouslyStatedMember",
    "unit": "iso4217:GBP"
   }
  },
  "fact-2": {
   "value": "900000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:RetainedEarningsPreviouslyClassifiedAsRevaluationReserve",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-222": {
   "value": "118100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Goodwill",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-223": {
   "value": "108700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Goodwill",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-224": {
   "value": "34600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsUnderDevelopment",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-225": {
   "value": "30000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsUnderDevelopment",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-226": {
   "value": "11400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherIntangibleAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-227": {
   "value": "14100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:OtherIntangibleAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-228": {
   "value": "231300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-229": {
   "value": "198700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-230": {
   "value": "11200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-231": {
   "value": "13700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-232": {
   "value": "32300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-233": {
   "value": "18200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-234": {
   "value": "438900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-235": {
   "value": "383400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-236": {
   "value": "99600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-237": {
   "value": "80700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-238": {
   "value": "61100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentReceivables",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-239": {
   "value": "60600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentReceivables",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-240": {
   "value": "19800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-241": {
   "value": "5800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-242": {
   "value": "700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-243": {
   "value": "1000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-244": {
   "value": "181200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-245": {
   "value": "148100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-246": {
   "value": "620100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-247": {
   "value": "531500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-248": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ShorttermBorrowings",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-249": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ShorttermBorrowings",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-250": {
   "value": "1800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-251": {
   "value": "1400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-252": {
   "value": "98200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayables",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-253": {
   "value": "85700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayables",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-254": {
   "value": "1600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentProvisions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-255": {
   "value": "2600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentProvisions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-256": {
   "value": "7900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-257": {
   "value": "12000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-258": {
   "value": "4200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-259": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-260": {
   "value": "113700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-261": {
   "value": "102500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-262": {
   "value": "20900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:LongtermBorrowings",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-263": {
   "value": "28100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:LongtermBorrowings",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-264": {
   "value": "4200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-265": {
   "value": "2400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-266": {
   "value": "16800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-267": {
   "value": "14900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisions",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-268": {
   "value": "45200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-269": {
   "value": "30700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-270": {
   "value": "1100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDerivativeFinancialLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-271": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDerivativeFinancialLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-272": {
   "value": "100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PreferenceShares",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-273": {
   "value": "100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:PreferenceShares",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-274": {
   "value": "88300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-275": {
   "value": "76200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-276": {
   "value": "202000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-277": {
   "value": "178700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-278": {
   "value": "418100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NetAssetsLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-279": {
   "value": "352800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:NetAssetsLiabilities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-280": {
   "value": "2800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-281": {
   "value": "2800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-282": {
   "value": "307700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-283": {
   "value": "307100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-284": {
   "value": "12900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CapitalReserve",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-285": {
   "value": "12900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CapitalReserve",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-286": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:RevaluationSurplus",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-287": {
   "value": "900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:RevaluationSurplus",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-288": {
   "value": "7500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfExchangeDifferencesOnTranslation",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-289": {
   "value": "-27100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfExchangeDifferencesOnTranslation",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-290": {
   "value": "87200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-291": {
   "value": "56200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-292": {
   "value": "418100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-293": {
   "value": "352800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-294": {
   "value": "90100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CashGeneratedFromContinuingUnderlyingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-295": {
   "value": "80000000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CashGeneratedFromContinuingUnderlyingOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-296": {
   "value": "1100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CashImpactOfContinuingNonUnderlyingItems",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-297": {
   "value": "1300000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CashImpactOfContinuingNonUnderlyingItems",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-298": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CashImpactOfDiscontinuedNonUnderlyingItems",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-299": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CashImpactOfDiscontinuedNonUnderlyingItems",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-300": {
   "value": "89000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-301": {
   "value": "78300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperations",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-302": {
   "value": "8500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-303": {
   "value": "2600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-304": {
   "value": "80500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-305": {
   "value": "75700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-306": {
   "value": "3000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-307": {
   "value": "2200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-308": {
   "value": "31500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-309": {
   "value": "28000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-310": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-311": {
   "value": "5100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-312": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-313": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-314": {
   "value": "2000000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:ShortTermFundingToDefinedBenefitPensionSchemeClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-315": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:ShortTermFundingToDefinedBenefitPensionSchemeClassifiedAsInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-316": {
   "value": "6000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-317": {
   "value": "0",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-318": {
   "value": "-30500000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-319": {
   "value": "-34900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-320": {
   "value": "14400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-321": {
   "value": "11900000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-322": {
   "value": "7000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PaymentsToAcquireOrRedeemEntitysShares",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-323": {
   "value": "7100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PaymentsToAcquireOrRedeemEntitysShares",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-324": {
   "value": "100000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssuingShares",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-325": {
   "value": "400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssuingShares",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-326": {
   "value": "1300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-327": {
   "value": "2600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-328": {
   "value": "-0",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CapitalisedFacilityFeesPaidClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-329": {
   "value": "1100000",
   "decimals": -5,
   "dimensions": {
    "concept": "chemringgroupplc:CapitalisedFacilityFeesPaidClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-330": {
   "value": "30000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-331": {
   "value": "29200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-332": {
   "value": "41000000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-333": {
   "value": "55700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-334": {
   "value": "2200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-335": {
   "value": "1600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-336": {
   "value": "-35800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-337": {
   "value": "-50400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-338": {
   "value": "14200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-339": {
   "value": "-9600000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-340": {
   "value": "5400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-341": {
   "value": "14700000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-342": {
   "value": "200000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-343": {
   "value": "300000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2020-11-01T00:00:00/2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-344": {
   "value": "19800000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2022-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-345": {
   "value": "5400000",
   "decimals": -5,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00",
    "unit": "iso4217:GBP"
   }
  },
  "fact-5": {
   "value": "Chemring Group PLC",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "en",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00"
   }
  },
  "fact-346": {
   "value": " PLC",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "en",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00"
   }
  },
  "fact-3": {
   "value": "England and Wales",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "en",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00"
   }
  },
  "fact-4": {
   "value": "Roke Manor, Old Salisbury Lane, Romsey, Hampshire, SO51 0ZN",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "en",
    "entity": "scheme:213800U9A54VQJ5P2J41",
    "period": "2021-11-01T00:00:00/2022-11-01T00:00:00"
   }
  }
 }
}