ACQUISITIONS AND DISPOSITIONS - Narrative (Details) $ in Millions	3 Months Ended
Mar. 31, 2026 USD ($) property
Asset Acquisition [Line Items]
Number of assets acquired, properties \| property	1
Estimated fair value of net assets acquired	$ 10.4
Third Party
Asset Acquisition [Line Items]
Self storage property disposed \| property	3
Net proceeds from sale	$ 20.6
Net gain on disposition	$ 6.5
Third Party \| Discontinued Operations, Held-for-Sale
Asset Acquisition [Line Items]
Number of self storage properties to be sold \| property	3
Customer in-place leases
Asset Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 0.2
Finite-lived intangible assets, period increase (decrease)	$ 10.2

Asset Acquisition, Assets Acquired and Liabilities Assumed, Net

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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