XML 61 R53.htm IDEA: XBRL DOCUMENT
v3.25.3

Non-controlling Interests - Additional Information (Detail) | Sep. 30, 2025
--- | ---
Operating Partnership [Member] |
Noncontrolling Interest [Line Items] |
Percentage of operating partnership interest held by parent | 100.00%

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

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: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_OwnershipAxis=srg_OperatingPartnershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |