XML 67 R55.htm IDEA: XBRL DOCUMENT v3.4.0.3

Noncontrolling Interests: (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Aug. 17, 2012
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Limited partnership interest of the operating partnership (as a percent)	7.00%	7.00%
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Number of trading days used to calculate redemption value (in days)	10 days
Redemption value of outstanding OP Units not owned by the Company	$ 860,925	$ 870,625
The Macerich Partnership, L.P.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest in operating partnership (as a percent)	93.00%	93.00%

X

- Definition

Represents the aggregate redemption value for the noncontrolling interest.

+ References

No definition available.

+ Details

Name:	mac_MinorityInterestRedemptionValue
Namespace Prefix:	mac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Minority Interest, Redemption Value Basis Number of Trading Days

+ References

No definition available.

+ Details

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

X

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 30
-Article 5

+ Details

Name:	us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

X

- Details

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