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Investments in Unconsolidated Joint Ventures: Narrative (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 0 Months Ended |  |  |
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Oct. 08, 2013 sqft | Aug. 28, 2014 | Dec. 29, 2014 | Mar. 30, 2012 sqft | May 31, 2012 sqft | Aug. 10, 2012 sqft | Jun. 12, 2013 sqft | Jul. 31, 2013 sqft | May 29, 2013 sqft | Jul. 30, 2014 | Oct. 26, 2012 sqft | Oct. 24, 2013 | Oct. 03, 2012 sqft | Jun. 04, 2014 | Nov. 14, 2014 mall | Nov. 20, 2014 | Feb. 17, 2015 | Sep. 17, 2013 sqft | Sep. 16, 2013 | Nov. 13, 2014 sqft
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price paid through assumption of debt by the Company | $ 1,414,659 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 | $ 257,064 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 | $ 420,123 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain on sale of assets | 3,643 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets | 190,526 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets | 29,301 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of assets | 320,123 mac_ProceedsFromSaleOfPartnershipInterestsOtherAssetsAndDiscontinuedOperationsNet | 416,077 mac_ProceedsFromSaleOfPartnershipInterestsOtherAssetsAndDiscontinuedOperationsNet | 136,707 mac_ProceedsFromSaleOfPartnershipInterestsOtherAssetsAndDiscontinuedOperationsNet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage notes payable settled in deed-in-lieu of foreclosure | 0 us-gaap_NotesReduction | 84,000 us-gaap_NotesReduction | 185,000 us-gaap_NotesReduction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments on mortgages, bank and other notes payable | 853,080 us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities | 3,051,072 us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities | 2,371,890 us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions to Co-venture Partner | 15,555 mac_DistributionsToCoVenturePartner | 19,564 mac_DistributionsToCoVenturePartner | 39,479 mac_DistributionsToCoVenturePartner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ridgmar Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  | 1,273,000 us-gaap_AreaOfRealEstateProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_RidgmarMallMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain on sale of assets |  |  |  | 6,243 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_RidgmarMallMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain recognized on sale |  |  |  | 3,121 mac_EquityMethodInvestmentGainLossonSaleofPropertyProRataShare / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_RidgmarMallMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale |  |  |  | 60,900 us-gaap_ProceedsFromDivestitureOfBusinesses / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_RidgmarMallMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments on mortgages, bank and other notes payable |  |  |  | 51,657 us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_RidgmarMallMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions to Co-venture Partner |  |  |  | 9,243 mac_DistributionsToCoVenturePartner / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_RidgmarMallMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cascade Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 589,000 us-gaap_AreaOfRealEstateProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_CascadeMallMember |  |  |  |  |  |
Wilshire Boulevard |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  | 40,000 us-gaap_AreaOfRealEstateProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_WilshireBoulevardMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price funded by cash payment on acquisition |  |  |  |  | 15,386 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_WilshireBoulevardMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price paid through assumption of debt by the Company |  |  |  |  | 1,714 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_WilshireBoulevardMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain on sale of assets | 9,033 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_WilshireBoulevardMember |  |  |  | 9,033 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_WilshireBoulevardMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest sold |  |  |  |  | 30.00%mac_EquityMethodInvestmentsPercentageOfOwnershipInterestSold / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_WilshireBoulevardMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale |  |  |  |  | 17,100 us-gaap_ProceedsFromDivestitureOfBusinesses / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = mac_WilshireBoulevardMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Camelback Colonnade |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 619,000 us-gaap_AreaOfRealEstateProperty / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_CamelbackColonnadeMember |  |
Ownership percentage purchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 67.50%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_CamelbackColonnadeMember |  |
Ownership percentage in joint ventures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 73.20%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_CamelbackColonnadeMember |
Proceeds from sale |  |  |  |  |  | 92,898 us-gaap_ProceedsFromDivestitureOfBusinesses / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_CamelbackColonnadeMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chandler Village Center, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  | 273,000 us-gaap_AreaOfRealEstateProperty / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerVillageCenterLLCMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest sold |  |  |  |  |  |  | 50.00%mac_EquityMethodInvestmentsPercentageOfOwnershipInterestSold / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerVillageCenterLLCMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on sale of joint venture interest |  |  |  |  |  |  | 14,795 us-gaap_EquityMethodInvestmentNetSalesProceeds / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerVillageCenterLLCMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of investments in unconsolidated entity |  |  |  |  |  |  | 8,184 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerVillageCenterLLCMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of assets |  |  |  |  |  |  | 6,045 mac_ProceedsFromSaleOfPartnershipInterestsOtherAssetsAndDiscontinuedOperationsNet / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerVillageCenterLLCMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage notes payable settled in deed-in-lieu of foreclosure |  |  |  |  |  |  | 8,750 us-gaap_NotesReduction / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerVillageCenterLLCMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chandler Festival |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  | 500,000 us-gaap_AreaOfRealEstateProperty / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerFestivalMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest sold |  |  |  |  |  |  | 50.00%mac_EquityMethodInvestmentsPercentageOfOwnershipInterestSold / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerFestivalMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on sale of joint venture interest |  |  |  |  |  |  | 30,975 us-gaap_EquityMethodInvestmentNetSalesProceeds / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerFestivalMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of investments in unconsolidated entity |  |  |  |  |  |  | 12,347 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerFestivalMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of assets |  |  |  |  |  |  | 16,183 mac_ProceedsFromSaleOfPartnershipInterestsOtherAssetsAndDiscontinuedOperationsNet / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerFestivalMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage notes payable settled in deed-in-lieu of foreclosure |  |  |  |  |  |  | 14,792 us-gaap_NotesReduction / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerFestivalMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chandler Gateway |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  | 260,000 us-gaap_AreaOfRealEstateProperty / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerGatewayMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest sold |  |  |  |  |  |  |  | 50.00%mac_EquityMethodInvestmentsPercentageOfOwnershipInterestSold / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerGatewayMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on sale of joint venture interest |  |  |  |  |  |  |  | 14,315 us-gaap_EquityMethodInvestmentNetSalesProceeds / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerGatewayMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of investments in unconsolidated entity |  |  | 3,363 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerGatewayMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of assets |  |  |  |  |  |  |  | 4,921 mac_ProceedsFromSaleOfPartnershipInterestsOtherAssetsAndDiscontinuedOperationsNet / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerGatewayMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage notes payable settled in deed-in-lieu of foreclosure |  |  |  |  |  |  |  | 9,394 us-gaap_NotesReduction / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_ChandlerGatewayMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Kierland Commons Investment LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage in joint ventures | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_KierlandCommonsInvestmentLLCMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NorthPark Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  | 1,946,000 us-gaap_AreaOfRealEstateProperty / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_NorthParkCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on sale of joint venture interest |  |  |  |  |  |  |  |  | 118,810 us-gaap_EquityMethodInvestmentNetSalesProceeds / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_NorthParkCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of investments in unconsolidated entity |  |  |  |  |  |  |  |  | 24,590 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_NorthParkCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pacific Premier Retail LP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain on sale of assets | (7,044)mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember | 182,754 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember | 90 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SanTan Village Power Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  | 491,000 us-gaap_AreaOfRealEstateProperty / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_SanTanVillagePowerCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain on sale of assets |  |  |  |  |  |  | 23,294 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_SanTanVillagePowerCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan paid off |  |  |  |  |  |  | 45,000 us-gaap_RepaymentsOfDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_SanTanVillagePowerCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of property |  |  |  |  |  |  | 54,780 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_SanTanVillagePowerCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributed to the partners |  |  |  |  |  |  | 9,780 us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_SanTanVillagePowerCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain recognized on sale |  |  |  |  |  |  | 11,502 mac_EquityMethodInvestmentGainLossonSaleofPropertyProRataShare / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_SanTanVillagePowerCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain included in net income attributable to noncontrolling interest |  |  |  |  |  |  | (3,565)mac_EquityMethodInvestmentGainLossonSaleofPropertyProRataShareAttributabletoNoncontrollingInterest / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_SanTanVillagePowerCenterMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Kitsap Mall | Pacific Premier Retail LP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  | 846,000 us-gaap_AreaOfRealEstateProperty / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KitsapMallMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain on sale of assets |  |  |  |  |  |  |  |  |  | 55,150 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KitsapMallMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of property |  |  |  |  |  |  |  |  |  | 127,000 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KitsapMallMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |  |  |
Gain recognized on sale |  |  |  |  |  |  |  |  |  | 28,127 mac_EquityMethodInvestmentGainLossonSaleofPropertyProRataShare / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KitsapMallMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |  |  |
Redmond Town Center | Pacific Premier Retail LP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  | 695,000 us-gaap_AreaOfRealEstateProperty / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember | 582,000 us-gaap_AreaOfRealEstateProperty / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |
(Loss) gain on sale of assets |  |  |  |  |  |  |  |  |  |  | 38,447 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember | 89,157 mac_EquityMethodInvestmentSummarizedFinancialInformationGainLossOnSaleAndRemeasurementOfAssets / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of property |  |  |  |  |  |  |  |  |  |  | 127,000 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember | 185,000 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |
Gain recognized on sale |  |  |  |  |  |  |  |  |  |  | 18,251 mac_EquityMethodInvestmentGainLossonSaleofPropertyProRataShare / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember | 44,424 mac_EquityMethodInvestmentGainLossonSaleofPropertyProRataShare / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_RedmondTownCenterMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = mac_PacificPremierRetailLPMember |  |  |  |  |  |  |  |  |  |  |
The Gallery |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  | 1,474,000 us-gaap_AreaOfRealEstateProperty / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheGalleryMember |  |  |  |  |  |  |  |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  | 106,800 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheGalleryMember |  |  |  |  |  |  |  |  |  |
Joint Venture Ownership Percentage Purchased |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%mac_JointVentureOwnershipPercentagePurchased / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheGalleryMember |  |  |  |  |  |  |  |  |  |
Candlestick Point |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500,000 us-gaap_AreaOfRealEstateProperty / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CandlestickPointMember
Candlestick Point | Notes Receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65,130 us-gaap_NotesReceivableRelatedParties / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_NotesReceivableMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CandlestickPointMember
Description of variable rate | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Candlestick Point | Notes Receivable | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.00%us-gaap_LoansReceivableBasisSpreadOnVariableRate / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_NotesReceivableMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CandlestickPointMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
Arrowhead Towne Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,198,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_ArrowheadTowneCenterMember |  |  |  |  |  |  |  |  |
Ownership percentage purchased |  |  |  |  |  |  |  |  |  |  |  |  |  | 33.30%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_BusinessAcquisitionAxis = mac_ArrowheadTowneCenterMember |  |  |  |  |  |  |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  | 144,400 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mac_ArrowheadTowneCenterMember |  |  |  |  |  |  |  |  |
Purchase price funded by cash payment on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  | 69,025 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = mac_ArrowheadTowneCenterMember |  |  |  |  |  |  |  |  |
Purchase price paid through assumption of debt by the Company |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,375 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / us-gaap_BusinessAcquisitionAxis = mac_ArrowheadTowneCenterMember |  |  |  |  |  |  |  |  |
Superstition Springs Land I |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage purchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33.30%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_BusinessAcquisitionAxis = mac_SuperstitionSpringsLandIMember |  |  |  |  |  |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 46,162 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mac_SuperstitionSpringsLandIMember |  |  |  |  |  |  |  |
Purchase price funded by cash payment on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 23,662 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = mac_SuperstitionSpringsLandIMember |  |  |  |  |  |  |  |
Purchase price paid through assumption of debt by the Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,500 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / us-gaap_BusinessAcquisitionAxis = mac_SuperstitionSpringsLandIMember |  |  |  |  |  |  |  |
FlatIron Crossing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,434,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_FlatIronCrossingMember |  |  |  |  |  |  |
Ownership percentage purchased | 75.00%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_BusinessAcquisitionAxis = mac_FlatIronCrossingMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75.00%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_BusinessAcquisitionAxis = mac_FlatIronCrossingMember |  |  |  |  |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 310,397 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mac_FlatIronCrossingMember |  |  |  |  |  |  |
Purchase price funded by cash payment on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 195,900 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = mac_FlatIronCrossingMember |  |  |  |  |  |  |
Purchase price paid through assumption of debt by the Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 114,497 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / us-gaap_BusinessAcquisitionAxis = mac_FlatIronCrossingMember |  |  |  |  |  |  |
Cascade Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage purchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49.00%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_BusinessAcquisitionAxis = mac_CascadeMallMember |  |  |  |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,233 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mac_CascadeMallMember |  |  |  |  |  |
PPRLP Queens Portfolio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage purchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49.00%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember |  |  |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,838,886 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember |  |  |  |  |
Purchase price paid through assumption of debt by the Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 672,109 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember |  |  |  |  |
Number of shopping centers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 mac_NumberOfRegionalShoppingCentersOwnedByInvestee / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember |  |  |  |  |
Equity issued (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,166,777 us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember |  |  |  |  |
PPRLP Queens Portfolio | Lakewood Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,066,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |  |  |
PPRLP Queens Portfolio | Los Cerritos Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,113,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |  |  |
PPRLP Queens Portfolio | Queens Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 967,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |  |  |
PPRLP Queens Portfolio | Stonewood Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 932,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |  |  |
PPRLP Queens Portfolio | Washington Square |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,441,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_PPRLPQueensPortfolioMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |  |  |
443 Wabash MAB LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_A443WabashMABLLCMember |  |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 18,900 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mac_A443WabashMABLLCMember |  |  |  |
Joint Venture Ownership Percentage Purchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45.00%mac_JointVentureOwnershipPercentagePurchased / us-gaap_BusinessAcquisitionAxis = mac_A443WabashMABLLCMember |  |  |  |
Subsequent Event | Inland Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property square footage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 933,000 us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = mac_InlandCenterMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Ownership percentage purchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage / us-gaap_BusinessAcquisitionAxis = mac_InlandCenterMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Purchase price on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51,250 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mac_InlandCenterMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Purchase price funded by cash payment on acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26,250 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = mac_InlandCenterMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Purchase price paid through assumption of debt by the Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,000 us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / us-gaap_BusinessAcquisitionAxis = mac_InlandCenterMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Loan paid off |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000 us-gaap_RepaymentsOfDebt / us-gaap_BusinessAcquisitionAxis = mac_InlandCenterMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |

X
- Definition In a business combination achieved in stages, this element represents the additional percentage of equity interests acquired. + References No definition available. + Details
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- Definition Represents the pro rata share of the amount of gain or loss resulting from sale of property by an equity method investment of the entity. + References No definition available. + Details
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- Definition Represents the pro rata share of the amount of gain (loss) resulting from sale of property by an equity method investment of the entity attributable to noncontrolling interest. + References No definition available. + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting that was sold by the entity during the period. + References No definition available. + Details
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- Definition Represents the amount of gain or loss resulting from either the difference between the carrying value and the sales price or remeasurement of the carrying value of assets during the period, reported by an equity method investment of the entity. + References No definition available. + Details
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- Definition Joint Venture Ownership Percentage Purchased + References No definition available. + Details
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X
- Definition Represents the number of regional shopping centers owned by the investee. + References No definition available. + Details
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- Definition Cash inflows from the sale of partnership interests, other assets, and discontinued operations. + References No definition available. + Details
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- Definition Area of a real estate property. + References No definition available. + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition This item represents the amount of net sales proceeds received on disposal of an equity method investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=35687916&loc=d3e32847-111569 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin. + References No definition available. + Details
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- Definition The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.3) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Related Parties -URI http://asc.fasb.org/extlink&oid=16382449 + Details
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