Gain (Loss) On Land Sales

No definition available.

Name:	mac_GainLossOnLandSales
Namespace Prefix:	mac_
Data Type:	xbrli:monetaryItemType
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- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnSaleOfProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Revenue from the sale of land in the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_LandSales
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from sale of buildings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfBuildings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_OfficeBuildingMember
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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_CountryClubPlazaMember
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- Details

Name:	us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_FashionDistrictPhiladelphiaMember
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Investments in Unconsolidated Joint Ventures - Narrative (Details) - USD ($) $ in Thousands	Feb. 16, 2018	Dec. 14, 2017	Sep. 18, 2017	Mar. 17, 2017
Westcor/Queen Creek LLC
Schedule of Equity Method Investments [Line Items]
Gain (Loss) On Land Sales		$ 5,436
Joint Venture \| Westcor/Queen Creek LLC
Schedule of Equity Method Investments [Line Items]
Land sold		30,491
Gain (Loss) On Land Sales		$ 14,853
Office building \| Country Club Plaza
Schedule of Equity Method Investments [Line Items]
Gain on sale of building				$ 2,290
Office building \| Country Club Plaza \| Joint Venture
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of building				78,000
Gain on sale of building				$ 4,580
Office building \| Fashion District Philadelphia
Schedule of Equity Method Investments [Line Items]
Gain on sale of building	$ 2,773		$ 6,539
Office building \| Fashion District Philadelphia \| Joint Venture
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of building	41,800		61,500
Gain on sale of building	$ 5,545		$ 13,078