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Related Party Transactions - Schedule of fees charged to unconsolidated joint ventures (Details) - Unconsolidated Joint Ventures and Third Party Managed Properties - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Related Party Transaction [Line Items]
Management fees	$ 4,271	$ 2,321	$ 13,240	$ 6,993
Development and leasing fees	2,952	1,721	10,149	5,201
Fees charged to unconsolidated joint ventures	$ 7,223	$ 4,042	$ 23,389	$ 12,194

X

- Definition

Revenue, comprised of fees related to the development and leasing of joint venture properties and third-party managed properties.

+ References

No definition available.

+ Details

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Namespace Prefix:	mac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Revenue, comprised of base and incentive revenue, from developing, operating and managing another entity's business during the reporting period.

+ References

No definition available.

+ Details

Name:	mac_ManagementDevelopmentAndLeasingFeesRevenue
Namespace Prefix:	mac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.

+ 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(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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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

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Namespace Prefix:	us-gaap_
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- Details

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