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   "value": "-2000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2020-04-01T00:00:00/2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24275": {
   "value": "35932000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24277": {
   "value": "412348000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2020-04-01T00:00:00/2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24280": {
   "value": "37482000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivitiesContinuingOperations",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24282": {
   "value": "412350000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivitiesContinuingOperations",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2020-04-01T00:00:00/2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24285": {
   "value": "6277000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24287": {
   "value": "-307000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2020-04-01T00:00:00/2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24290": {
   "value": "83446000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24292": {
   "value": "453378000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2020-04-01T00:00:00/2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24295": {
   "value": "85322000",
   "decimals": -3,
   "dimensions": {
    "concept": "soitec:NetIncreaseDecreaseInCashAndCashEquivalentsContinuingOperations",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24297": {
   "value": "453737000",
   "decimals": -3,
   "dimensions": {
    "concept": "soitec:NetIncreaseDecreaseInCashAndCashEquivalentsContinuingOperations",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2020-04-01T00:00:00/2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24300": {
   "value": "644376000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24302": {
   "value": "190998000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2020-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24305": {
   "value": "727822000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2022-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f24307": {
   "value": "644376000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f41440": {
   "value": "Soitec",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "fr",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00"
   }
  },
  "f41451": {
   "value": "Soci\u00e9t\u00e9 anonyme \u00e0 Conseil d\u2019administration",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "fr",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00"
   }
  },
  "f41459": {
   "value": "Parc Technologique des Fontaines \u2013 Chemin des Franques \u2013 38190 Bernin \u2013 France",
   "dimensions": {
    "concept": "ifrs-full:DomicileOfEntity",
    "language": "fr",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00"
   }
  },
  "f41460": {
   "value": "Parc Technologique des Fontaines \u2013 Chemin des Franques \u2013 38190 Bernin \u2013 France",
   "dimensions": {
    "concept": "ifrs-full:PrincipalPlaceOfBusiness",
    "language": "fr",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00"
   }
  },
  "f41461": {
   "value": "Parc Technologique des Fontaines \u2013 Chemin des Franques \u2013 38190 Bernin \u2013 France",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "fr",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00"
   }
  },
  "f41462": {
   "value": "France",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "fr",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00"
   }
  },
  "f41475": {
   "value": "la mise au point, recherche, fabrication, commercialisation de mat\u00e9riaux pour la micro\u00e9lectronique et en g\u00e9n\u00e9ral pour l\u2019industrie ; \u2022 l\u2019assistance technologique diverse, d\u00e9veloppement de machines sp\u00e9ci\ufb01ques et applications ; \u2022 toutes op\u00e9rations industrielles et commerciales se rapportant \u00e0 : \u2022 la cr\u00e9ation, l\u2019acquisition, la location, la prise en location-g\u00e9rance de tous fonds de commerce, la prise \u00e0 bail, l\u2019installation, l\u2019exploitation de tous \u00e9tablissements, fonds de commerce, usines, ateliers, se rapportant \u00e0 l\u2019une ou l\u2019autre des activit\u00e9s sp\u00e9ci\ufb01\u00e9es, \u2022 la prise, l\u2019acquisition, l\u2019exploitation ou la cession de tous proc\u00e9d\u00e9s et brevets concer- nant ces activit\u00e9s, \u2022 la participation directe ou indirecte de la Soci\u00e9t\u00e9 dans toutes op\u00e9rations \ufb01nanci\u00e8res, immobili\u00e8res ou mobili\u00e8res ou entreprises commerciales ou industrielles pouvant se rattacher \u00e0 l\u2019objet social ou \u00e0 tout objet similaire ou connexe ; \u2022 toutes op\u00e9rations quelconques contribuant \u00e0 la r\u00e9alisation de cet objet",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "fr",
    "entity": "scheme:969500ZR92SQCU9TST26",
    "period": "2021-04-01T00:00:00/2022-04-01T00:00:00"
   }
  },
  "footnote1x12x0": {
   "value": "(1) Les donn\u00e9es au 31 mars 2021 ont \u00e9t\u00e9 retrait\u00e9es suite \u00e0 l\u2019application de la d\u00e9cision de l\u2019IFRS IC relative au calcul des engagements de r\u00e9gimes de retraite (voir note 3.5).",
   "dimensions": {
    "concept": "xbrl:note",
    "noteId": "footnote1x12x0",
    "language": "fr"
   }
  },
  "footnote0x23x0": {
   "value": "Le r\u00e9sultat dilu\u00e9 par action est un pro\ufb01t de 5,63 euros, r\u00e9parti entre les activit\u00e9s poursuivies (+ 5,64 euros) et les activit\u00e9s abandonn\u00e9es (\u2011 0,01 euro).",
   "dimensions": {
    "concept": "xbrl:note",
    "noteId": "footnote0x23x0",
    "language": "fr"
   }
  },
  "footnote3x43x0": {
   "value": "(2) Les augmentations de capital correspondent aux attributions d\u00e9\ufb01nitives d\u2019actions pour 560 milliers d'euros li\u00e9s \u00e0 l'\u00e9mission de 279 821 actions ordinaires suite \u00e0 l'attribution gratuite et d\u00e9\ufb01nitive des actions du plan d'attribution gratuite pour tous\u00b7tes le 27 juillet 2021, 113 milliers d'euros li\u00e9s \u00e0 l'\u00e9mission de 56 712 ADP 2 nouvellement \u00e9mises suite \u00e0 l'attribution gratuite et d\u00e9\ufb01nitive de 56 712 ADP 2 au titre du plan Topaz 2019 le 2 ao\u00fbt 2021 et 25 milliers d\u2019euros suite \u00e0 l\u2019\u00e9mission de 12 553 ADP 2 nouvellement \u00e9mises suite \u00e0 l\u2019attribution gratuite et d\u00e9\ufb01nitive de 12 553 ADP 2 au titre de plan Topaz 2020 le 10 janvier 2022.",
   "dimensions": {
    "concept": "xbrl:note",
    "noteId": "footnote3x43x0",
    "language": "fr"
   }
  },
  "footnote3x44x0": {
   "value": "(3) 1 435 818 Oc\u00e9anes 2023 ont \u00e9t\u00e9 converties en actions ordinaires selon un ratio de conversion d\u2019une action ordinaire par Oc\u00e9ane.",
   "dimensions": {
    "concept": "xbrl:note",
    "noteId": "footnote3x44x0",
    "language": "fr"
   }
  },
  "footnote2x34x0": {
   "value": "(1) Les donn\u00e9es au 31 mars 2021 ont \u00e9t\u00e9 retrait\u00e9es suite \u00e0 l\u2019application de la d\u00e9cision de l\u2019IFRS IC relative au calcul des engagements de r\u00e9gimes de retraite (voir note 3.5).",
   "dimensions": {
    "concept": "xbrl:note",
    "noteId": "footnote2x34x0",
    "language": "fr"
   }
  },
  "footnote0x22x0": {
   "value": "Le r\u00e9sultat net de base par action est un pro\ufb01t de 5,98 euros, r\u00e9parti entre les activit\u00e9s poursuivies (+ 5,99 euros) et les activit\u00e9s abandonn\u00e9es (\u2011 0,01 euro).",
   "dimensions": {
    "concept": "xbrl:note",
    "noteId": "footnote0x22x0",
    "language": "fr"
   }
  }
 }
}