{
  "report-package": "altarea-2021-12-31-fr.zip",
  "date": "2021-12-31",
  "lei": "969500ICGCY1PD6OT783",
  "system": "ESEF",
  "country": "FR",
  "langs": [
    "fr"
  ],
  "report": "altarea-2021-12-31-fr/reports/altarea-2021-12-31-fr.xhtml",
  "viewer": "altarea-2021-12-31-fr/reports/ixbrlviewer.html",
  "xbrl-json": "altarea-2021-12-31-fr.json",
  "sha256sum": "436a411a0da36a9bb887f882c775728e7bdf003e3b671a2aeacfb460ffe57a7e",
  "errors": [
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:ProfitLoss in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum -523,800,000 computed sum -523,700,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:ProfitLoss in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum 262,100,000 computed sum 262,200,000 context contexte_01012021-31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from altarea:ProfitLossFromOperatingActivitiesBeforeShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum -377,400,000 computed sum -377,300,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:RentalIncomeFromInvestmentPropertyNetOfDirectOperatingExpense in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum 159,300,000 computed sum 159,400,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from altarea:UnrecoverableRentalExpenses in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum 8,700,000 computed sum 8,800,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from altarea:NetOverheadExpense in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum 111,900,000 computed sum 111,800,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from altarea:NetOverheadExpense in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum 107,600,000 computed sum 107,700,000 context contexte_01012021-31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:ProfitLossBeforeTax in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal1 reported sum 276,100,000 computed sum 276,000,000 context contexte_01012021-31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:ProfitLoss in link role http://www.altarea.com/role/StatementConsolidatedIncomeStatementCal2 reported sum -523,800,000 computed sum -523,700,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:CashFlowsFromUsedInFinancingActivities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfCashFlowsCal1 reported sum -32,000,000 computed sum -32,200,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:CashFlowsFromUsedInFinancingActivities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfCashFlowsCal1 reported sum -6,900,000 computed sum -7,000,000 context contexte_01012021-31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:CashFlowsFromUsedInInvestingActivities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfCashFlowsCal1 reported sum 33,200,000 computed sum 33,100,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from altarea:ProfitLossBeforeTaxAndBeforeNetInterestExpenseOrIncome in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfCashFlowsCal1 reported sum -383,300,000 computed sum -383,400,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from altarea:ProfitLossBeforeTaxAndBeforeNetInterestExpenseOrIncome in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfCashFlowsCal1 reported sum 359,200,000 computed sum 359,100,000 context contexte_01012021-31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:ComprehensiveIncome in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfComprehensiveIncomeCal2 reported sum -523,500,000 computed sum -523,400,000 context contexte_01012020-31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:Assets in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 9,359,400,000 computed sum 9,359,300,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:NoncurrentAssets in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 5,132,200,000 computed sum 5,132,100,000 context contexte_31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:NoncurrentAssets in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 5,170,800,000 computed sum 5,171,000,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:IntangibleAssetsAndGoodwill in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 330,400,000 computed sum 330,500,000 context contexte_31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:InvestmentProperty in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 4,024,600,000 computed sum 4,024,700,000 context contexte_31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:InvestmentProperty in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 4,176,800,000 computed sum 4,176,900,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:CurrentAssets in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 3,817,800,000 computed sum 3,817,900,000 context contexte_31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:EquityAndLiabilities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 9,359,400,000 computed sum 9,359,300,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:EquityAttributableToOwnersOfParent in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 1,758,500,000 computed sum 1,758,600,000 context contexte_31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:EquityAttributableToOwnersOfParent in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 2,236,200,000 computed sum 2,236,100,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:NoncurrentLiabilities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 3,036,500,000 computed sum 3,036,600,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:NoncurrentFinancialLiabilities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 2,500,200,000 computed sum 2,500,300,000 context contexte_31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:NoncurrentFinancialLiabilities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 2,891,700,000 computed sum 2,891,600,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from ifrs-full:CurrentLiabilities in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 2,779,200,000 computed sum 2,779,100,000 context contexte_31122021 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "INCONSISTENCY",
      "code": "xbrl.5.2.5.2:calcInconsistency",
      "msg": "Calculation inconsistent from altarea:CurrentFinancialLiabilitiesExcludingDerivative in link role http://www.altarea.com/role/StatementConsolidatedStatementsOfFinancialPosition reported sum 1,569,800,000 computed sum 1,569,900,000 context contexte_31122020 unit EUR unreportedContributingItems none"
    },
    {
      "sev": "WARNING",
      "code": "formula:assertionUnsatisfied",
      "msg": "positive, \n$pos: ifrs-full:ProceedsFromSalesOfInvestmentProperty context contexte_01012021-31122021\n"
    },
    {
      "sev": "WARNING",
      "code": "formula:assertionUnsatisfied",
      "msg": "positive, \n$pos: ifrs-full:DisposalsInvestmentProperty context contexte_01012021-31122021\n"
    },
    {
      "sev": "WARNING",
      "code": "formula:assertionUnsatisfied",
      "msg": "positive, \n$pos: ifrs-full:DisposalsInvestmentProperty context contexte_01012020-31122020\n"
    },
    {
      "sev": "WARNING",
      "code": "formula:assertionUnsatisfied",
      "msg": "positive, \n$pos: ifrs-full:ProceedsFromSalesOfInvestmentProperty context contexte_01012020-31122020\n"
    }
  ],
  "added": "2022-04-28"
}