XML 86 R73.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Collaborative Agreement (Details) ft² in Thousands, $ in Thousands | Mar. 01, 2018 USD ($) ft²
--- | ---
Schedule of Equity Method Investments [Line Items] |
Ownership percentage | 25.00%
Outside partner interest of the operating partnership | 75.00%
Proceeds from sale | $ | $ 142,500
Reimbursement percent | 75.00%
Westside Pavilion |
Schedule of Equity Method Investments [Line Items] |
Property area (in square feet) | ft² | 755

X
- Definition Joint Venture Ownership Percent + References No definition available. + Details
Name: | mac_JointVentureOwnershipPercent
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Joint Venture Ownership Percent by Other Owners + References No definition available. + Details
Name: | mac_JointVentureOwnershipPercentbyOtherOwners
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Reimbursement Percent, Collaborative Arrangement + References No definition available. + Details
Name: | mac_ReimbursementPercentCollaborativeArrangement
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
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: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + 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 (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromDivestitureOfBusinesses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 No definition available. + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_WestsidePavilionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |