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Investments in Unconsolidated Entities - Summary of Company's Investments in Unconsolidated Entities (Detail) | 3 Months Ended
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Mar. 31, 2026 ft² Property
Income Statement Equity Method Investments [Line Items] |
Number of Properties | 5
Total GLA | ft² | 251,200
Brookfield Properties Retail II [Member] |
Income Statement Equity Method Investments [Line Items] |
Seritage % Ownership | 50.00%
Number of Properties | 1
Total GLA | ft² | 93,500
Invesco Real Estate [Member] |
Income Statement Equity Method Investments [Line Items] |
Seritage % Ownership | 50.00%
Number of Properties | 1
Total GLA | ft² | 51,500
Invesco Real Estate II [Member] |
Income Statement Equity Method Investments [Line Items] |
Seritage % Ownership | 50.00%
Number of Properties | 1
Total GLA | ft² | 106,200
RD Management [Member] |
Income Statement Equity Method Investments [Line Items] |
Seritage % Ownership | 50.00%
Number of Properties | 1
The Howard Hughes Corporation and Foulger-Pratt [Member] |
Income Statement Equity Method Investments [Line Items] |
Seritage % Ownership | 31.30%
Number of Properties | 1

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