XML 49 R41.htm IDEA: XBRL DOCUMENT
v3.25.3

Investments in Unconsolidated Entities - Summary of Company's Investments in Unconsolidated Entities (Detail) | 9 Months Ended
--- | ---
Sep. 30, 2025 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

X
- Definition Income statement equity method investments. + References No definition available. + Details
Name: | srg_IncomeStatementEquityMethodInvestmentsLineItems
Namespace Prefix: | srg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of entities properties + References No definition available. + Details
Name: | srg_NumberOfEntitiesProperties
Namespace Prefix: | srg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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 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 2: 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 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Area of land subject to a ground lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
Name: | us-gaap_LandSubjectToGroundLeases
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=srg_BrookfieldPropertiesRetailTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=srg_InvescoRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=srg_InvescoRealEstateTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=srg_RDManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=srg_TheHowardHughesCorporationAndFoulgerPrattMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |