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Real Estate Facilities (Narrative) (Details) ft² in Millions, $ in Millions | 9 Months Ended
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Sep. 30, 2023 USD ($) ft² storage_facility
Schedule Of Real Estate Facilities [Line Items] |
Aggregate costs to develop and expand | $ 172.6
Net rentable area developed or expanded | ft² | 0.9
Acquisition of Self-Storage Facilities Other Investments |
Schedule Of Real Estate Facilities [Line Items] |
Number of operating self-storage facilities acquired | storage_facility | 26
Net rentable area acquired (in Sq.ft) | ft² | 1.9
Total cost of acquisition | $ 301.3
Payments to acquire intangible assets | $ 8.9

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