XML 79 R63.htm IDEA: XBRL DOCUMENT v3.25.0.1

Investments in Unconsolidated Joint Ventures - Narrative (Details) ft² in Thousands																	3 Months Ended	12 Months Ended
	Feb. 07, 2025 USD ($)	Oct. 24, 2024 USD ($)	Jul. 31, 2024 USD ($) ft²	Jun. 28, 2024 USD ($)	Jun. 27, 2024 USD ($)	May 14, 2024 USD ($)	Jan. 10, 2024 USD ($)	Dec. 27, 2023 USD ($) ft²	Dec. 04, 2023 USD ($)	Nov. 01, 2023 USD ($)	May 18, 2023 USD ($) property	Apr. 25, 2023 USD ($)	Mar. 03, 2023 USD ($)	Nov. 14, 2022 USD ($)	Aug. 02, 2022 USD ($)	Feb. 02, 2022 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2024	Nov. 16, 2023	May 17, 2023 property	May 09, 2023 USD ($)
Investments in unconsolidated joint ventures:
Write-down of assets																		$ 334,375,000	$ 153,495,000	$ 15,045,000
Ownership percentage (as a percent)																						49.90%
Mortgage notes payable																		4,894,525,000	4,136,136,000
Subsequent Event
Investments in unconsolidated joint ventures:
Debt instrument, variable interest rate, type	SOFR
Sears Deptford Mall and Vintage Faire Mall
Investments in unconsolidated joint ventures:
Asset acquisition, percentage of shares owned (as a percent)											100.00%				100.00%
Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square
Investments in unconsolidated joint ventures:
Asset acquisition, percentage of shares owned (as a percent)											100.00%
Joint Venture
Investments in unconsolidated joint ventures:
Write-down of assets																		179,960,000	152,360,000	27,054,000
Mortgage notes payable																		$ 3,461,032,000	5,445,411,000
Joint Venture | Sears South Plains
Investments in unconsolidated joint ventures:
Write-down of assets											$ 51,363,000									$ 27,054,000
Joint Venture | Sears Deptford Mall and Vintage Faire Mall
Investments in unconsolidated joint ventures:
Asset acquisition, consideration transferred															$ 24,544,000
Joint Venture | Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square
Investments in unconsolidated joint ventures:
Asset acquisition, consideration transferred											$ 46,687,000
Number of properties | property											5
Joint Venture | Arrowhead Towne Center
Investments in unconsolidated joint ventures:
Asset acquisition, percentage of shares owned (as a percent)						100.00%
Joint Venture | South Plains Mall
Investments in unconsolidated joint ventures:
Asset acquisition, percentage of shares owned (as a percent)						100.00%
Joint Venture | Third Party | Sears Deptford Mall and Vintage Faire Mall
Investments in unconsolidated joint ventures:
Joint venture ownership percent acquired (as a percent)															50.00%
Joint Venture | Third Party | Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square
Investments in unconsolidated joint ventures:
Joint venture ownership percent acquired (as a percent)											50.00%
Joint Venture | Third Party | Arrowhead Towne Center
Investments in unconsolidated joint ventures:
Joint venture ownership percent acquired (as a percent)						40.00%
Asset acquisition, consideration transferred						$ 36,447,000
Joint Venture | Third Party | South Plains Mall
Investments in unconsolidated joint ventures:
Joint venture ownership percent acquired (as a percent)						40.00%
Asset acquisition, consideration transferred						$ 0
FlatIron Crossing | Subsequent Event
Investments in unconsolidated joint ventures:
Variable interest rate spread (as a percent)	2.90%
FlatIron Crossing | Subsequent Event | Mezzanine Loan
Investments in unconsolidated joint ventures:
Variable interest rate spread (as a percent)	12.25%
Extension term	90 days
FlatIron Crossing | Subsequent Event | First Mortgage
Investments in unconsolidated joint ventures:
Repayments of debt	$ 14,532,000
Variable interest rate spread (as a percent)	2.90%
Mortgage notes payable	$ 140,480,000
FlatIron Crossing | Weighted Average | Subsequent Event | First Mortgage
Investments in unconsolidated joint ventures:
Variable interest rate spread (as a percent)	3.70%
FlatIron Crossing | Joint Venture
Investments in unconsolidated joint ventures:
Repayments of debt																$ 197,011,000
Debt issued																$ 175,000,000
Variable interest rate spread (as a percent)																3.70%
FlatIron Crossing | Joint Venture | Subsequent Event | Mezzanine Loan
Investments in unconsolidated joint ventures:
Repayments of debt	$ 14,532,000
FlatIron Crossing | Joint Venture | Period One
Investments in unconsolidated joint ventures:
Interest rate cap (as a percent)																4.00%
FlatIron Crossing | Joint Venture | Period Two
Investments in unconsolidated joint ventures:
Interest rate cap (as a percent)																5.00%
Washington Square
Investments in unconsolidated joint ventures:
Repayments of debt										$ 9,000,000				$ 9,000
Washington Square | Joint Venture
Investments in unconsolidated joint ventures:
Repayments of debt										$ 15,000,000				$ 15,000
Variable interest rate spread (as a percent)														4.00%
Joint venture extension term (in years)														4 years
Scottsdale Fashion Square | Joint Venture
Investments in unconsolidated joint ventures:
Repayments of debt													$ 403,931,000
Debt issued													$ 700,000,000
Interest rate on debt (as a percent)													6.21%
Deptford Mall
Investments in unconsolidated joint ventures:
Repayments of debt												$ 5,100,000
Deptford Mall | Joint Venture
Investments in unconsolidated joint ventures:
Repayments of debt												$ 10,000,000
Interest rate on debt (as a percent)												3.73%
Debt instrument term (in years)												3 years
Country Club Plaza
Investments in unconsolidated joint ventures:
Debt instrument, debt default, amount																								$ 147,605,000
Extinguishment of debt, amount				$ 147,735
Country Club Plaza | Joint Venture
Investments in unconsolidated joint ventures:
Write-down of assets																			$ 100,997,000
Debt instrument, debt default, amount																								$ 295,210,000
Proceeds from sale of property				175,600,000
Extinguishment of debt, amount				$ 295,470,000
Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square | Joint Venture | Seritage
Investments in unconsolidated joint ventures:
Number of properties | property																							5
Tysons Corner LLC | Joint Venture
Investments in unconsolidated joint ventures:
Repayments of debt									$ 666,465,000
Debt issued									$ 710,000,000
Tysons Corner LLC | Joint Venture | Fixed Rate Residential Mortgage
Investments in unconsolidated joint ventures:
Interest rate on debt (as a percent)									6.60%
Office Property in Los Angeles
Investments in unconsolidated joint ventures:
Repayments of debt								$ 324,632,000
Proceeds from sale of property								$ 77,643,000
Ownership percentage (as a percent)								25.00%
Gains on sales of investment real estate								$ 8,118,000
Office Property in Los Angeles | Joint Venture
Investments in unconsolidated joint ventures:
Property area (in square feet) | ft²								680
Proceeds from sale of property								$ 700,000,000
Propcor II Associates, LLC—Boulevard Shops | Joint Venture
Investments in unconsolidated joint ventures:
Repayments of debt							$ 23,000,000
Debt issued							$ 24,000,000
Variable interest rate spread (as a percent)							2.50%
Interest rate cap (as a percent)							7.50%
Development of Premium Outlets in Los Angeles
Investments in unconsolidated joint ventures:
Write-down of assets																	$ 57,686,000
Development of Premium Outlets in Los Angeles | Joint Venture
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)																					50.00%
Chandler Fashion Center | Joint Venture
Investments in unconsolidated joint ventures:
Repayments of debt					$ 256,000,000
Debt issued					$ 17,700,000
Interest rate on debt (as a percent)					7.06%
Debt instrument, face amount					$ 275,000,000
Biltmore Fashion Park Retail Center in Phoenix, Arizona | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Investments in unconsolidated joint ventures:
Property area (in square feet) | ft²			611
Gains on sales of investment real estate			$ 42,815,000
Equity interest percentage sold (as a percent)			50.00%
Sale of partnership interests other assets			$ 110,000,000
Lakewood Center, Los Cerritos Center and Washington Square Retail Center in Phoenix, Arizona | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Investments in unconsolidated joint ventures:
Joint venture ownership percent acquired (as a percent)		40.00%
Asset acquisition, consideration transferred		$ 122,132,000
Write-down of assets		$ 117,031,000
Asset acquisition, percentage of shares owned (as a percent)		100.00%

X

- Definition

Asset Acquisition, Percentage Of Shares Owned

+ References

No definition available.

+ Details

Name:	mac_AssetAcquisitionPercentageOfSharesOwned
Namespace Prefix:	mac_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Debt Instrument, Extension Term

+ References

No definition available.

+ Details

Name:	mac_DebtInstrumentExtensionTerm
Namespace Prefix:	mac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Equity Interest Percentage Sold

+ References

No definition available.

+ Details

Name:	mac_EquityInterestPercentageSold
Namespace Prefix:	mac_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Joint Venture Extension Term

+ References

No definition available.

+ Details

Name:	mac_JointVentureExtensionTerm
Namespace Prefix:	mac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Joint Venture Ownership Percent

+ References

No definition available.

+ Details

Name:	mac_JointVentureOwnershipPercent
Namespace Prefix:	mac_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Joint Venture Ownership Percent Acquired

+ References

No definition available.

+ Details

Name:	mac_JointVentureOwnershipPercentAcquired
Namespace Prefix:	mac_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Proceeds From Sale Of Partnership Interests Other Assets, Net

+ References

No definition available.

+ Details

Name:	mac_ProceedsFromSaleOfPartnershipInterestsOtherAssetsNet
Namespace Prefix:	mac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 55
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479908/805-50-55-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 25
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480060/805-50-25-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 30
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480027/805-50-30-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 30
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480027/805-50-30-2

+ Details

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

X

- Definition

Amount of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

Name:	us-gaap_DebtDefaultLongtermDebtAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482949/835-30-55-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69B

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69C
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69C

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482900/835-30-50-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Indicates type of variable interest rate on debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

+ Details

Name:	us-gaap_DebtInstrumentVariableInterestRateTypeExtensibleEnumeration
Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeCapInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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

X

- Definition

The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(7)(a)(8))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(14)(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-SubTopic 360
-Topic 944
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477875/944-360-45-3

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-SubTopic 360
-Topic 944
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477875/944-360-45-4

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 360
-Topic 944
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478586/944-360-50-1

+ Details

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

X

- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-2

+ Details

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

X

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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

X

- Definition

The cash inflow from sale of buildings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

+ Details

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

X

- Definition

Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

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

X

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

+ Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

Name:	us-gaap_SecuredDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AssetAcquisitionAxis=mac_SearsDeptfordMallAndVintageFaireMallMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AssetAcquisitionAxis=mac_ChandlerFashionCenterDanburyFairMallFreeholdRacewayMallLosCerritosCenterAndWashingtonSquareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=mac_SearsSouthPlainsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AssetAcquisitionAxis=mac_ArrowheadTowneCenterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AssetAcquisitionAxis=mac_SouthPlainsMallMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=mac_ThirdPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_FlatIronCrossingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=mac_MezzanineLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_FirstMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mac_PeriodAxis=mac_PeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mac_PeriodAxis=mac_PeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_WashingtonSquareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_ScottsdaleFashionSquareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_DeptfordMallMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_CountryClubPlazaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_ChandlerFashionCenterDanburyFairMallFreeholdRacewayMallLosCerritosCenterAndWashingtonSquareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=mac_SeritageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_TysonsCornerLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_FixedRateResidentialMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_OfficePropertyInLosAngelesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_PropcorIIAssociatesLLCBoulevardShopsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_DevelopmentOfPremiumOutletsInLosAngelesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_ChandlerFashionCenterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_BiltmoreFashionParkRetailCenterInPhoenixArizonaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_LakewoodCenterLosCerritosCenterAndWashingtonSquareRetailCenterInPhoenixArizonaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: