Background and Basis of Presentation (Details) ft² in Millions	9 Months Ended
	Sep. 30, 2025 a ft² segment property	Dec. 31, 1870 a
Property, Plant and Equipment [Line Items]
Area of land (in acres) | a		571
Number of operating segments | segment	2
Number of reportable segments | segment	2
Gross leasable area (in sqft) | ft²	4
Area of ground leases owned (acres) | a	146
Retail centers
Property, Plant and Equipment [Line Items]
Number of properties	21
Industrial assets
Property, Plant and Equipment [Line Items]
Number of properties	14
Office properties
Property, Plant and Equipment [Line Items]
Number of properties	4