Business and Organization - Schedule of Properties Under Development or Construction (Details)	Jun. 30, 2026
Retail \| Southern Post Retail
Business And Organization [Line Items]
Ownership interest percentage in property	100.00%
Office \| Southern Post Office
Business And Organization [Line Items]
Ownership interest percentage in property	100.00%

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

No definition available.

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