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Investments in Unconsolidated Joint Ventures - Schedule of Ownership Interest in Joint Ventures (Details)	Dec. 31, 2024
AM Tysons LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Corte Madera Village, LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.10%
Freehold Chandler Holdings LP - Chandler Fashion Center
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.10%
Kierland Commons Investment LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Macerich HHF Broadway Plaza LLC—Broadway Plaza
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Macerich HHF Centers LLC—Various Properties
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	51.00%
Propcor II Associates, LLC—Boulevard Shops
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Paradise Valley - Various Entities
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	5.00%
Scottsdale Fashion Square Partnership
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
TM TRS Holding Company LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Tysons Corner LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Tysons Corner Hotel I LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Tysons Corner Property Holdings II LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
Tysons Corner Property LLC
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%
West Acres Development, LLP
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	19.00%
WMAP, L.L.C.—Atlas Park, The Shops at
Investments in unconsolidated joint ventures:
Ownership percentage (as a percent)	50.00%

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: 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

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- 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

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