Acquisitions and Dispositions - Dispositions Narrative (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations $ in Millions		1 Months Ended
	Mar. 31, 2023 USD ($) a landParcel	Feb. 29, 2024 USD ($) ft²	Dec. 31, 2023 USD ($) ft²	Jul. 31, 2023 USD ($) storageUnit storageFacility
Creekside Village Green
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of real estate property (in sqft) | ft²		32,689
Consideration received		$ 14.0
Gain on disposal		$ 4.8
Memorial Hermann Medical Office
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of real estate property (in sqft) | ft²			20,000
Consideration received			$ 9.6
Gain on disposal			$ 3.2
The Woodlands, Texas
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received				$ 30.5
Gain on disposal				$ 16.1
Number of operating self storage facilities | storageFacility				2
Number of storage units | storageUnit				1,370
Honolulu, Hawai'i
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of real estate property (in sqft) | a	11,929
Consideration received	$ 6.3
Gain on disposal	$ 4.7
Land parcels sold | landParcel	2