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Schedule III-Real Estate and Accumulated Depreciation (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
Initial Cost to Company |  |  |  |
Land | $ 2,105,538 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand |  |  |
Building and Improvements | 7,923,288 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements |  |  |
Equipment and Furnishings | 47,479 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing |  |  |
Cost Capitalized Subsequent to Acquisition | 2,701,577 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 2,242,291 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand |  |  |
Buildings and Improvements | 10,079,773 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements |  |  |
Equipment and furnishings | 152,554 us-gaap_FixturesAndEquipmentGross | 152,198 us-gaap_FixturesAndEquipmentGross |  |
Construction in progress | 303,264 us-gaap_DevelopmentInProcess | 229,169 us-gaap_DevelopmentInProcess |  |
SEC Schedule III, Real Estate, Gross | 12,777,882 us-gaap_RealEstateGrossAtCarryingValue | 9,181,338 us-gaap_RealEstateGrossAtCarryingValue | 9,012,706 us-gaap_RealEstateGrossAtCarryingValue | 7,489,735 us-gaap_RealEstateGrossAtCarryingValue
Accumulated Depreciation | 1,709,992 us-gaap_RealEstateAccumulatedDepreciation | 1,559,572 us-gaap_RealEstateAccumulatedDepreciation | 1,533,160 us-gaap_RealEstateAccumulatedDepreciation | 1,410,692 us-gaap_RealEstateAccumulatedDepreciation
SEC Schedule III, Real Estate Investment Property, Net | 11,067,890 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet |  |  |
Arrowhead Towne Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 36,687 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Building and Improvements | 386,662 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 5,593 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 36,687 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Buildings and Improvements | 390,949 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Equipment and furnishings | 587 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Construction in progress | 719 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 428,942 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Accumulated Depreciation | 23,749 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 405,193 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ArrowheadTowneCenterMember |  |  |
Black Canyon Auto Park |  |  |  |
Initial Cost to Company |  |  |  |
Land | 20,600 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Cost Capitalized Subsequent to Acquisition | 11,448 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 32,046 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Equipment and furnishings | 0 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Construction in progress | 2 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
SEC Schedule III, Real Estate, Gross | 32,048 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 32,048 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_BlackCanyonAutoParkMember |  |  |
Capitola Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 20,395 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Building and Improvements | 59,221 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 12,593 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 20,392 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Buildings and Improvements | 70,286 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Equipment and furnishings | 1,226 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Construction in progress | 305 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 92,209 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Accumulated Depreciation | 30,432 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 61,777 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CapitolaMallMember |  |  |
Cascade Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 19,253 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Building and Improvements | 9,671 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | (676)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 18,699 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Buildings and Improvements | 9,501 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Equipment and furnishings | 48 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 28,248 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Accumulated Depreciation | 274 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 27,974 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_CascadeMallMember |  |  |
Chandler Fashion Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 24,188 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Building and Improvements | 223,143 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 14,269 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 24,188 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Buildings and Improvements | 232,306 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Equipment and furnishings | 5,106 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 261,600 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Accumulated Depreciation | 82,644 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 178,956 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ChandlerFashionCenterMember |  |  |
Danbury Fair Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 130,367 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Building and Improvements | 316,951 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 96,784 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 142,751 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Buildings and Improvements | 395,362 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Equipment and furnishings | 5,942 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Construction in progress | 47 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 544,102 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Accumulated Depreciation | 104,765 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 439,337 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DanburyFairMallMember |  |  |
Deptford Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 48,370 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Building and Improvements | 194,250 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 45,576 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 61,029 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Buildings and Improvements | 224,815 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Equipment and furnishings | 2,352 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 288,196 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Accumulated Depreciation | 52,405 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 235,791 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DeptfordMallMember |  |  |
Desert Sky Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 9,447 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Building and Improvements | 37,245 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Equipment and Furnishings | 12 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 2,246 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 9,082 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Buildings and Improvements | 38,853 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Equipment and furnishings | 953 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Construction in progress | 62 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 48,950 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Accumulated Depreciation | 5,356 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 43,594 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_DesertSkyMallMember |  |  |
Eastland Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 22,050 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Building and Improvements | 151,605 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 4,906 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 22,066 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Buildings and Improvements | 155,715 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Equipment and furnishings | 780 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 178,561 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Accumulated Depreciation | 13,815 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 164,746 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EastlandMallMember |  |  |
Estrella Falls |  |  |  |
Initial Cost to Company |  |  |  |
Land | 10,550 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Cost Capitalized Subsequent to Acquisition | 61,328 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 9,405 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Equipment and furnishings | 0 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Construction in progress | 62,473 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
SEC Schedule III, Real Estate, Gross | 71,878 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 71,878 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_EstrellaFallsTheMarketAtMember |  |  |
Fashion Outlets of Chicago |  |  |  |
Initial Cost to Company |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Cost Capitalized Subsequent to Acquisition | 250,542 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 40,575 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Buildings and Improvements | 207,432 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Equipment and furnishings | 2,170 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Construction in progress | 365 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
SEC Schedule III, Real Estate, Gross | 250,542 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Accumulated Depreciation | 13,988 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 236,554 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfChicagoMember |  |  |
Fashion Outlets of Niagara Falls USA |  |  |  |
Initial Cost to Company |  |  |  |
Land | 18,581 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Building and Improvements | 210,139 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Cost Capitalized Subsequent to Acquisition | 99,001 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 27,681 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Buildings and Improvements | 273,148 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Equipment and furnishings | 1,103 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Construction in progress | 25,789 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
SEC Schedule III, Real Estate, Gross | 327,721 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Accumulated Depreciation | 26,073 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 301,648 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FashionOutletsOfNiagaraMember |  |  |
Flagstaff Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 5,480 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Building and Improvements | 31,773 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 16,874 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 5,480 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Buildings and Improvements | 47,951 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Equipment and furnishings | 696 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 54,127 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Accumulated Depreciation | 16,510 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 37,617 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallMember |  |  |
Flagstaff Mall, The Marketplace at |  |  |  |
Initial Cost to Company |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Cost Capitalized Subsequent to Acquisition | 52,830 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Buildings and Improvements | 52,830 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Equipment and furnishings | 0 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
SEC Schedule III, Real Estate, Gross | 52,830 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
Accumulated Depreciation | 16,372 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 36,458 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlagstaffMallTheMarketPlaceAtMember |  |  |
FlatIron Crossing |  |  |  |
Initial Cost to Company |  |  |  |
Land | 109,851 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Building and Improvements | 333,540 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Cost Capitalized Subsequent to Acquisition | 16,821 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 109,851 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Buildings and Improvements | 347,830 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Equipment and furnishings | 1,514 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Construction in progress | 1,017 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
SEC Schedule III, Real Estate, Gross | 460,212 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Accumulated Depreciation | 25,877 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 434,335 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FlatIronCrossingMember |  |  |
Freehold Raceway Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 164,986 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Building and Improvements | 362,841 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 97,368 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 168,098 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Buildings and Improvements | 452,330 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Equipment and furnishings | 4,767 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 625,195 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Accumulated Depreciation | 134,182 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 491,013 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FreeholdRacewayMallMember |  |  |
Fresno Fashion Fair |  |  |  |
Initial Cost to Company |  |  |  |
Land | 17,966 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Building and Improvements | 72,194 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Cost Capitalized Subsequent to Acquisition | 47,132 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 17,966 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Buildings and Improvements | 117,511 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Equipment and furnishings | 1,754 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Construction in progress | 61 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
SEC Schedule III, Real Estate, Gross | 137,292 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Accumulated Depreciation | 52,076 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 85,216 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_FresnoFashionFairMember |  |  |
Great Northern Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 12,187 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Building and Improvements | 62,657 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | (20,870)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 6,981 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Buildings and Improvements | 46,704 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Equipment and furnishings | 289 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 53,974 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Accumulated Depreciation | 20,693 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 33,281 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreatNorthernMallMember |  |  |
Green Acres Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 156,640 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Building and Improvements | 321,034 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 41,084 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 156,640 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Buildings and Improvements | 331,971 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Equipment and furnishings | 3,222 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Construction in progress | 26,925 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 518,758 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Accumulated Depreciation | 24,260 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 494,498 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_GreenAcresMallMember |  |  |
Kings Plaza Shopping Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 209,041 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Building and Improvements | 485,548 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Equipment and Furnishings | 20,000 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Cost Capitalized Subsequent to Acquisition | 43,955 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 209,041 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Buildings and Improvements | 522,896 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Equipment and furnishings | 21,903 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Construction in progress | 4,704 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
SEC Schedule III, Real Estate, Gross | 758,544 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
Accumulated Depreciation | 34,229 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 724,315 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_KingsPlazaMember |  |  |
La Cumbre Plaza |  |  |  |
Initial Cost to Company |  |  |  |
Land | 18,122 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Building and Improvements | 21,492 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Cost Capitalized Subsequent to Acquisition | 24,530 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 17,280 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Buildings and Improvements | 46,327 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Equipment and furnishings | 345 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Construction in progress | 192 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
SEC Schedule III, Real Estate, Gross | 64,144 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Accumulated Depreciation | 20,965 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 43,179 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LaCumbrePlazaMember |  |  |
Lakewood Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 140,928 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Building and Improvements | 534,952 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 1,666 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 140,928 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Buildings and Improvements | 536,408 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Equipment and furnishings | 210 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 677,546 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Accumulated Depreciation | 2,758 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 674,788 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LakewoodCenterMember |  |  |
Los Cerritos Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 85,670 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Building and Improvements | 612,803 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 2,669 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 85,670 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Buildings and Improvements | 555,646 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Equipment and furnishings | 76 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Construction in progress | 59,750 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 701,142 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Accumulated Depreciation | 2,572 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 698,570 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_LosCerritosCenterMember |  |  |
Macerich Management Co. |  |  |  |
Initial Cost to Company |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Building and Improvements | 8,685 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Equipment and Furnishings | 26,562 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Cost Capitalized Subsequent to Acquisition | 32,910 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 1,967 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Buildings and Improvements | 7,608 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Equipment and furnishings | 52,504 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Construction in progress | 6,078 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
SEC Schedule III, Real Estate, Gross | 68,157 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
Accumulated Depreciation | 41,308 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 26,849 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MacerichManagementCompanyMember |  |  |
MACWH, LP |  |  |  |
Initial Cost to Company |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Building and Improvements | 25,771 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Cost Capitalized Subsequent to Acquisition | 16,017 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 11,557 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Buildings and Improvements | 27,455 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Equipment and furnishings | 0 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Construction in progress | 2,776 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
SEC Schedule III, Real Estate, Gross | 41,788 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Accumulated Depreciation | 6,990 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 34,798 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MACWHLPMember |  |  |
Northgate Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 8,400 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Building and Improvements | 34,865 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Equipment and Furnishings | 841 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 103,212 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 13,414 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Buildings and Improvements | 130,229 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Equipment and furnishings | 3,180 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Construction in progress | 495 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 147,318 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
Accumulated Depreciation | 60,674 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 86,644 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthgateMallMember |  |  |
NorthPark Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 7,746 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Building and Improvements | 74,661 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 5,917 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 7,885 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Buildings and Improvements | 79,986 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Equipment and furnishings | 441 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Construction in progress | 12 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 88,324 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
Accumulated Depreciation | 8,141 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 80,183 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthparkMallMember |  |  |
SouthPark Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 7,035 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Building and Improvements | 38,215 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 11,901 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 7,479 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Buildings and Improvements | 43,276 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Equipment and furnishings | 260 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Construction in progress | 6,136 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 57,151 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
Accumulated Depreciation | 3,554 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 53,597 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthParkMallMember |  |  |
South Plains Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 23,100 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Building and Improvements | 92,728 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 34,152 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 23,100 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Buildings and Improvements | 124,678 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Equipment and furnishings | 1,732 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Construction in progress | 470 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 149,980 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Accumulated Depreciation | 54,543 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 95,437 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthPlainsMallMember |  |  |
Southridge Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 6,764 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 18,670 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 6,514 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Buildings and Improvements | 18,828 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Equipment and furnishings | 91 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Construction in progress | 1 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 25,434 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Accumulated Depreciation | 1,505 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 23,929 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SouthRidgeMallMember |  |  |
Stonewood Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 4,948 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Building and Improvements | 302,527 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 26 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 4,948 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Buildings and Improvements | 302,527 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Equipment and furnishings | 26 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 307,501 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Accumulated Depreciation | 1,561 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 305,940 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_StonewoodCenterMember |  |  |
Superstition Springs Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 10,928 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Building and Improvements | 112,718 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 1,282 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 9,273 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Buildings and Improvements | 113,358 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Equipment and furnishings | 89 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Construction in progress | 2,208 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 124,928 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Accumulated Depreciation | 3,942 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 120,986 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsCenterMember |  |  |
Superstition Springs Power Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 1,618 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Building and Improvements | 4,420 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 6 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 1,618 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Buildings and Improvements | 4,343 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Equipment and furnishings | 83 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 6,044 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Accumulated Depreciation | 1,464 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 4,580 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SuperstitionSpringsPowerCenterMember |  |  |
Tangerine (Marana), The Shops at |  |  |  |
Initial Cost to Company |  |  |  |
Land | 36,158 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Cost Capitalized Subsequent to Acquisition | (9,591)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 16,922 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Equipment and furnishings | 0 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Construction in progress | 9,645 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
SEC Schedule III, Real Estate, Gross | 26,567 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 26,567 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheShopsAtTangerineMaranaMember |  |  |
The Macerich Partnership, L.P. |  |  |  |
Initial Cost to Company |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Building and Improvements | 2,534 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Cost Capitalized Subsequent to Acquisition | 9,942 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Equipment and furnishings | 6,301 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Construction in progress | 6,175 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
SEC Schedule III, Real Estate, Gross | 12,476 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Accumulated Depreciation | 1,971 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 10,505 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheMacerichPartnershipLPMember |  |  |
Towne Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 6,652 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Building and Improvements | 31,184 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 3,796 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 6,877 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Buildings and Improvements | 34,308 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Equipment and furnishings | 447 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 41,632 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Accumulated Depreciation | 11,668 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 29,964 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TowneMallMember |  |  |
Tucson La Encantada |  |  |  |
Initial Cost to Company |  |  |  |
Land | 12,800 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Building and Improvements | 19,699 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Cost Capitalized Subsequent to Acquisition | 55,378 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 12,800 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Buildings and Improvements | 74,580 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Equipment and furnishings | 497 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
SEC Schedule III, Real Estate, Gross | 87,877 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Accumulated Depreciation | 36,868 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 51,009 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TucsonLaEncantadaMember |  |  |
Twenty Ninth Street |  |  |  |
Initial Cost to Company |  |  |  |
Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Building and Improvements | 37,843 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Equipment and Furnishings | 64 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Cost Capitalized Subsequent to Acquisition | 210,459 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 23,599 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Buildings and Improvements | 223,399 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Equipment and furnishings | 1,244 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Construction in progress | 124 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
SEC Schedule III, Real Estate, Gross | 248,366 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Accumulated Depreciation | 86,659 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 161,707 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TwentyNinthStreetMember |  |  |
Valley Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 16,045 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Building and Improvements | 26,098 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 6,829 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 15,616 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Buildings and Improvements | 32,996 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Equipment and furnishings | 330 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Construction in progress | 30 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 48,972 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
Accumulated Depreciation | 3,133 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 45,839 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyMallMember |  |  |
500 North Michigan Avenue |  |  |  |
Initial Cost to Company |  |  |  |
Land | 12,851 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Building and Improvements | 55,358 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Cost Capitalized Subsequent to Acquisition | 5,985 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 10,991 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Buildings and Improvements | 50,254 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Equipment and furnishings | 113 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Construction in progress | 12,836 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
SEC Schedule III, Real Estate, Gross | 74,194 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
Accumulated Depreciation | 5,338 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 68,856 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_NorthMichiganAvenue500Member |  |  |
The Oaks [Member] |  |  |  |
Initial Cost to Company |  |  |  |
Land | 32,300 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Building and Improvements | 117,156 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Cost Capitalized Subsequent to Acquisition | 241,248 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 55,527 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Buildings and Improvements | 330,909 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Equipment and furnishings | 2,457 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Construction in progress | 1,811 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
SEC Schedule III, Real Estate, Gross | 390,704 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Accumulated Depreciation | 101,862 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 288,842 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_TheOaksMember |  |  |
Pacific View |  |  |  |
Initial Cost to Company |  |  |  |
Land | 8,697 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Building and Improvements | 8,696 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Cost Capitalized Subsequent to Acquisition | 128,517 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 7,854 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Buildings and Improvements | 135,586 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Equipment and furnishings | 2,470 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
SEC Schedule III, Real Estate, Gross | 145,910 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Accumulated Depreciation | 54,078 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 91,832 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PacificViewMember |  |  |
Panorama Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 4,373 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Building and Improvements | 17,491 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 9,719 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 4,857 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Buildings and Improvements | 24,328 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Equipment and furnishings | 475 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Construction in progress | 1,923 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 31,583 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Accumulated Depreciation | 9,048 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 22,535 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PanoramaMallMember |  |  |
Paradise Valley Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 24,565 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Building and Improvements | 125,996 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 42,492 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 35,921 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Buildings and Improvements | 154,362 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Equipment and furnishings | 2,297 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Construction in progress | 473 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 193,053 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Accumulated Depreciation | 57,816 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 135,237 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseValleyMallMember |  |  |
Paradise Village Ground Leases |  |  |  |
Initial Cost to Company |  |  |  |
Land | 8,880 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Building and Improvements | 2,489 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Cost Capitalized Subsequent to Acquisition | (6,876)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 3,870 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Buildings and Improvements | 623 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Equipment and furnishings | 0 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
SEC Schedule III, Real Estate, Gross | 4,493 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Accumulated Depreciation | 281 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 4,212 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageGroundLeasesMember |  |  |
Paradise Village office Park II |  |  |  |
Initial Cost to Company |  |  |  |
Land | 1,150 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Building and Improvements | 1,790 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Cost Capitalized Subsequent to Acquisition | 3,222 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 2,300 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Buildings and Improvements | 3,583 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Equipment and furnishings | 279 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
SEC Schedule III, Real Estate, Gross | 6,162 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Accumulated Depreciation | 2,158 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 4,004 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ParadiseVillageOfficeParkIIMember |  |  |
Promenade at Casa Grande |  |  |  |
Initial Cost to Company |  |  |  |
Land | 15,089 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Cost Capitalized Subsequent to Acquisition | 84,999 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 8,851 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Buildings and Improvements | 91,170 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Equipment and furnishings | 67 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
SEC Schedule III, Real Estate, Gross | 100,088 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Accumulated Depreciation | 32,259 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 67,829 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_PromenadeAtCasaGrandeMember |  |  |
Queens Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 251,474 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Building and Improvements | 1,039,922 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 243 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 251,474 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Buildings and Improvements | 1,039,424 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Equipment and furnishings | 104 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Construction in progress | 637 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 1,291,639 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Accumulated Depreciation | 4,476 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 1,287,163 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_QueensCenterMember |  |  |
Santa Monica Place |  |  |  |
Initial Cost to Company |  |  |  |
Land | 26,400 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Building and Improvements | 105,600 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Cost Capitalized Subsequent to Acquisition | 299,484 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 44,292 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Buildings and Improvements | 359,222 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Equipment and furnishings | 7,901 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Construction in progress | 20,069 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
SEC Schedule III, Real Estate, Gross | 431,484 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
Accumulated Depreciation | 66,589 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 364,895 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SantaMonicaPlaceMember |  |  |
San Tan Adjacent Land |  |  |  |
Initial Cost to Company |  |  |  |
Land | 29,414 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Cost Capitalized Subsequent to Acquisition | 6,505 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 30,506 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Equipment and furnishings | 0 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Construction in progress | 5,413 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
SEC Schedule III, Real Estate, Gross | 35,919 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 35,919 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanAdjacentLandMember |  |  |
San Tan Village Regional Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 7,827 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 193,020 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 6,344 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Buildings and Improvements | 193,478 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Equipment and furnishings | 1,025 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 200,847 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Accumulated Depreciation | 71,474 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 129,373 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_SanTanVillageRegionalCenterMember |  |  |
Valley River Center |  |  |  |
Initial Cost to Company |  |  |  |
Land | 24,854 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Building and Improvements | 147,715 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Cost Capitalized Subsequent to Acquisition | 20,124 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 24,854 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Buildings and Improvements | 166,096 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Equipment and furnishings | 1,743 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
SEC Schedule III, Real Estate, Gross | 192,693 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Accumulated Depreciation | 44,199 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 148,494 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_ValleyRiverCenterMember |  |  |
Victor Valley, Mall of |  |  |  |
Initial Cost to Company |  |  |  |
Land | 15,700 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Building and Improvements | 75,230 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Cost Capitalized Subsequent to Acquisition | 50,537 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 20,080 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Buildings and Improvements | 119,247 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Equipment and furnishings | 2,140 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
SEC Schedule III, Real Estate, Gross | 141,467 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Accumulated Depreciation | 34,332 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 107,135 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VictorValleyMallOfMember |  |  |
Vintage Faire Mall |  |  |  |
Initial Cost to Company |  |  |  |
Land | 14,902 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Building and Improvements | 60,532 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Cost Capitalized Subsequent to Acquisition | 55,147 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 17,647 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Buildings and Improvements | 111,432 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Equipment and furnishings | 1,502 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Construction in progress | 0 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
SEC Schedule III, Real Estate, Gross | 130,581 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Accumulated Depreciation | 56,694 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 73,887 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_VintageFaireMallMember |  |  |
Washington Square |  |  |  |
Initial Cost to Company |  |  |  |
Land | 89,659 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Building and Improvements | 652,310 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Cost Capitalized Subsequent to Acquisition | 454 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 89,886 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Buildings and Improvements | 650,155 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Equipment and furnishings | 151 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Construction in progress | 2,231 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
SEC Schedule III, Real Estate, Gross | 742,423 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Accumulated Depreciation | 3,016 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 739,407 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WashingtonSquareMember |  |  |
Westside Pavilion |  |  |  |
Initial Cost to Company |  |  |  |
Land | 34,100 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Building and Improvements | 136,819 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Cost Capitalized Subsequent to Acquisition | 70,923 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 34,100 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Buildings and Improvements | 201,490 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Equipment and furnishings | 5,876 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Construction in progress | 376 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
SEC Schedule III, Real Estate, Gross | 241,842 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Accumulated Depreciation | 88,683 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 153,159 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WestsidePavilionMember |  |  |
Wilton Mall Member |  |  |  |
Initial Cost to Company |  |  |  |
Land | 19,743 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Building and Improvements | 67,855 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Cost Capitalized Subsequent to Acquisition | 19,653 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 19,810 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Buildings and Improvements | 86,190 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Equipment and furnishings | 1,117 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Construction in progress | 134 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
SEC Schedule III, Real Estate, Gross | 107,251 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Accumulated Depreciation | 24,438 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 82,813 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_WiltonMallMemberMember |  |  |
Mervyn's |  |  |  |
Initial Cost to Company |  |  |  |
Land | 10,094 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Building and Improvements | 68,660 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Cost Capitalized Subsequent to Acquisition | 12,738 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 9,449 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Buildings and Improvements | 73,481 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Equipment and furnishings | 456 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Construction in progress | 8,106 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
SEC Schedule III, Real Estate, Gross | 91,492 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Accumulated Depreciation | 19,373 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | 72,119 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_MervynsMember |  |  |
Other Assets and Development Properties |  |  |  |
Initial Cost to Company |  |  |  |
Land | 49,913 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Building and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Equipment and Furnishings | 0 mac_RealEstateAndAccumulatedDepreciationInitialCostOfEquipmentFurnishing / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Cost Capitalized Subsequent to Acquisition | 34,868 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Gross Amount at Which Carried at Close of Period |  |  |  |
Land | 37,573 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Buildings and Improvements | 14,401 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Equipment and furnishings | 113 us-gaap_FixturesAndEquipmentGross / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Construction in progress | 32,694 us-gaap_DevelopmentInProcess / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
SEC Schedule III, Real Estate, Gross | 84,781 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
Accumulated Depreciation | 5,902 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |
SEC Schedule III, Real Estate Investment Property, Net | $ 78,879 us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = mac_OtherAssetsAndDevelopmentPropertiesMember |  |  |

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