{
 "documentInfo": {
  "documentType": "https://xbrl.org/2021/xbrl-json",
  "features": {
   "xbrl:canonicalValues": true
  },
  "namespaces": {
   "NEK": "http://nekkar.com/2021-12-31",
   "ifrs-full": "http://xbrl.ifrs.org/taxonomy/2020-03-16/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://nekkar.com/2021-12-31/5967007LIEEXZXIFE872-2021-12-31.xsd"
  ]
 },
 "facts": {
  "pp-value-1": {
   "value": "Nekkar is an industrial technology group offeringimpact technologies combined with high-endsoftware and automation solutions. ",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-5": {
   "value": "Nekkar ASA ",
   "dimensions": {
    "concept": "ifrs-full:NameOfParentEntity",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-4": {
   "value": "Norway. ",
   "dimensions": {
    "concept": "ifrs-full:PrincipalPlaceOfBusiness",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "f9792": {
   "value": "478892000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:ProjectRevenue",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9795": {
   "value": "359467000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:ProjectRevenue",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9801": {
   "value": "1091000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9804": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9812": {
   "value": "479983000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9815": {
   "value": "359467000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9826": {
   "value": "236708000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ChangesInInventoriesOfFinishedGoodsAndWorkInProgress",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9829": {
   "value": "198368000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ChangesInInventoriesOfFinishedGoodsAndWorkInProgress",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9835": {
   "value": "73820000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EmployeeBenefitsExpense",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9838": {
   "value": "57966000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EmployeeBenefitsExpense",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9847": {
   "value": "108000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9850": {
   "value": "13041000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9858": {
   "value": "25614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherExpenseByNature",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9863": {
   "value": "18710000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherExpenseByNature",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9872": {
   "value": "5665000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9875": {
   "value": "2746000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9886": {
   "value": "-3965000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherGainsLosses",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9889": {
   "value": "5990000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherGainsLosses",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9897": {
   "value": "345881000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OperatingExpense",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9900": {
   "value": "284840000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OperatingExpense",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9911": {
   "value": "134103000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9914": {
   "value": "74626000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9925": {
   "value": "5696000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9928": {
   "value": "2357000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9935": {
   "value": "7265000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9938": {
   "value": "5267000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9945": {
   "value": "-1569000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncomeCost",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9948": {
   "value": "-2909000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncomeCost",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9956": {
   "value": "132534000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9959": {
   "value": "71717000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9973": {
   "value": "20914000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9977": {
   "value": "896000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9992": {
   "value": "111621000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f9995": {
   "value": "70821000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10016": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10019": {
   "value": "-103718000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10028": {
   "value": "111621000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10031": {
   "value": "-32897000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10043": {
   "value": "110224000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10046": {
   "value": "-34726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10056": {
   "value": "1397000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10060": {
   "value": "1829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10088": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10091": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10101": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10104": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10114": {
   "value": "111621000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10117": {
   "value": "-32897000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10129": {
   "value": "110224000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10132": {
   "value": "-34726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10140": {
   "value": "1397000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10144": {
   "value": "1829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10157": {
   "value": "1.04",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10161": {
   "value": "-0.33",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10175": {
   "value": "1.04",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10179": {
   "value": "-0.33",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10196": {
   "value": "1.04",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10201": {
   "value": "0.65",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10219": {
   "value": "1.04",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10223": {
   "value": "0.65",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK/xbrli:shares"
   }
  },
  "f10374": {
   "value": "11714000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10377": {
   "value": "11696000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10388": {
   "value": "1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10392": {
   "value": "1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10403": {
   "value": "3863000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10406": {
   "value": "2751000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10414": {
   "value": "281376000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:RetainedEarningsAndOtherReserves",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10418": {
   "value": "171152000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:RetainedEarningsAndOtherReserves",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10423": {
   "value": "296952000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10426": {
   "value": "185598000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10435": {
   "value": "19276000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncontrollingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10439": {
   "value": "17879000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncontrollingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10446": {
   "value": "316228000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10449": {
   "value": "203477000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10460": {
   "value": "526000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10464": {
   "value": "599000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10471": {
   "value": "4234000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10474": {
   "value": "4550000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10481": {
   "value": "4761000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10484": {
   "value": "5149000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10494": {
   "value": "20682000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10497": {
   "value": "24616000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10506": {
   "value": "2618000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10509": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10519": {
   "value": "6519000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10522": {
   "value": "5092000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10529": {
   "value": "29456000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAdvances",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10532": {
   "value": "187469000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAdvances",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10542": {
   "value": "3971000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10545": {
   "value": "4278000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10553": {
   "value": "1566000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10556": {
   "value": "950000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10568": {
   "value": "65439000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10571": {
   "value": "127053000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10577": {
   "value": "130253000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10580": {
   "value": "349458000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10586": {
   "value": "135013000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10589": {
   "value": "354607000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10596": {
   "value": "451241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10599": {
   "value": "558084000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10645": {
   "value": "15982000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10648": {
   "value": "34204000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10655": {
   "value": "16643000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Goodwill",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10658": {
   "value": "16643000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Goodwill",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10668": {
   "value": "40084000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10671": {
   "value": "26840000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10680": {
   "value": "14439000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10683": {
   "value": "6224000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10691": {
   "value": "5804000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RightofuseAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10694": {
   "value": "6076000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RightofuseAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10703": {
   "value": "92952000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10706": {
   "value": "89987000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10717": {
   "value": "3474000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10720": {
   "value": "5412000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10728": {
   "value": "134749000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTradeReceivables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10731": {
   "value": "36643000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTradeReceivables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10739": {
   "value": "13906000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentReceivables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10743": {
   "value": "21909000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentReceivables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10752": {
   "value": "20153000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAccruedIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10755": {
   "value": "22382000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAccruedIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10765": {
   "value": "11505000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10768": {
   "value": "26636000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10781": {
   "value": "174501000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10785": {
   "value": "355114000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10793": {
   "value": "358288000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10796": {
   "value": "468097000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10803": {
   "value": "451241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10806": {
   "value": "558084000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10976": {
   "value": "132534000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10979": {
   "value": "71717000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10991": {
   "value": "5665000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f10994": {
   "value": "2746000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11002": {
   "value": "2549000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestExpense",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11005": {
   "value": "78000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestExpense",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11013": {
   "value": "2521000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11016": {
   "value": "1509000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11025": {
   "value": "-1541000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:AdjustmentsForOtherFinanceIncomeCost",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11028": {
   "value": "-4341000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:AdjustmentsForOtherFinanceIncomeCost",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11037": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11041": {
   "value": "245000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11053": {
   "value": "1938000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInInventories",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11056": {
   "value": "-4580000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInInventories",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11064": {
   "value": "-98106000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11067": {
   "value": "1616000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11075": {
   "value": "-3934000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11078": {
   "value": "10611000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11090": {
   "value": "-94260000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivablesAndAdjustmentsForIncreaseDecreaseInOtherOperatingPayables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11094": {
   "value": "40645000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivablesAndAdjustmentsForIncreaseDecreaseInOtherOperatingPayables",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11107": {
   "value": "-54595000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11110": {
   "value": "125421000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11132": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11137": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11151": {
   "value": "26253000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:PurchaseOfPropertyPlantAndEquipmentAndPurchaseOfIntangibleAssetsClassifiedAsInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11154": {
   "value": "12083000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:PurchaseOfPropertyPlantAndEquipmentAndPurchaseOfIntangibleAssetsClassifiedAsInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11160": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11165": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11177": {
   "value": "-98337000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11180": {
   "value": "-13964000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11192": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11197": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11210": {
   "value": "-124590000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11213": {
   "value": "-26046000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11234": {
   "value": "1130000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssuingShares",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11237": {
   "value": "2829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssuingShares",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11243": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11246": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11256": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11259": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11268": {
   "value": "991000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11271": {
   "value": "837000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11281": {
   "value": "2521000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:InterestReceivedClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11284": {
   "value": "1509000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:InterestReceivedClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11293": {
   "value": "2549000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11297": {
   "value": "78000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11306": {
   "value": "-1541000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11309": {
   "value": "-4341000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11323": {
   "value": "-1429000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11327": {
   "value": "-918000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11340": {
   "value": "-180614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11344": {
   "value": "98457000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11360": {
   "value": "355114000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11363": {
   "value": "256658000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11381": {
   "value": "174501000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11385": {
   "value": "355114000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11399": {
   "value": "-590000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:IncreaseDecreaseInCashAndCashEquivalentsAttributableToNonControllingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11403": {
   "value": "-389000",
   "decimals": -3,
   "dimensions": {
    "concept": "NEK:IncreaseDecreaseInCashAndCashEquivalentsAttributableToNonControllingInterests",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11476": {
   "value": "11619000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11480": {
   "value": "-1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11483": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11486": {
   "value": "205878000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11489": {
   "value": "217495000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11492": {
   "value": "16050000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11495": {
   "value": "233544000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11505": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11508": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11511": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11514": {
   "value": "-34726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11517": {
   "value": "-34726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11520": {
   "value": "1829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11523": {
   "value": "-32897000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11531": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11534": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11537": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11540": {
   "value": "-34726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11543": {
   "value": "-34726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11546": {
   "value": "1829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11549": {
   "value": "-32897000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11559": {
   "value": "78000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11562": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11565": {
   "value": "2751000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11568": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11571": {
   "value": "2829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11574": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11577": {
   "value": "2829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11588": {
   "value": "11696000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11592": {
   "value": "-1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11595": {
   "value": "2751000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11598": {
   "value": "171152000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11601": {
   "value": "185598000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11604": {
   "value": "17879000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11607": {
   "value": "203477000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11617": {
   "value": "11696000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11621": {
   "value": "-1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11624": {
   "value": "2751000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11627": {
   "value": "171152000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11630": {
   "value": "185598000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11633": {
   "value": "17879000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11636": {
   "value": "203477000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11646": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11649": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11652": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11655": {
   "value": "110224000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11658": {
   "value": "110224000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11662": {
   "value": "1397000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11665": {
   "value": "111621000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11673": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11676": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11679": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11682": {
   "value": "110224000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11685": {
   "value": "110224000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11689": {
   "value": "1397000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11692": {
   "value": "111621000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11702": {
   "value": "18000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11705": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11708": {
   "value": "1112000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11711": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11714": {
   "value": "1130000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11717": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11720": {
   "value": "1130000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "f11731": {
   "value": "11714000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11735": {
   "value": "-1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11738": {
   "value": "3863000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11742": {
   "value": "281376000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "NEK:RetainedEarningsAndOtherReservesMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11745": {
   "value": "296952000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11749": {
   "value": "19276000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:NOK"
   }
  },
  "f11752": {
   "value": "316228000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:NOK"
   }
  },
  "pp-value-6": {
   "value": "Nekkar ASA",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-7": {
   "value": "Norway.",
   "dimensions": {
    "concept": "ifrs-full:DomicileOfEntity",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-8": {
   "value": "listed on the Oslo Stock Exchange ",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-10": {
   "value": "And\u00f8yfaret 15in Kristiansand,",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-9": {
   "value": "Norway.",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "en",
    "entity": "scheme:5967007LIEEXZXIFE872",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  }
 }
}