v3.26.3
Investments in Unconsolidated Real Estate Entities (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
ft²
company
property
Dec. 31, 2025
USD ($)
Schedule of Equity Method Investments [Line Items]    
Number of Properties | property 28  
Carrying amount of investment $ 883,398 $ 388,586
Total carrying values of investment, underlying equity in net assets $ 151,500  
Shurgard    
Schedule of Equity Method Investments [Line Items]    
Ownership interest (in percent) 35.00%  
Number of Properties | company 338  
Net Rentable Square Feet | ft² 18,900,000  
Carrying amount of investment $ 349,068 388,586
Legacy NSA JVs    
Schedule of Equity Method Investments [Line Items]    
Ownership interest (in percent) 25.00%  
Number of Properties | company 262  
Net Rentable Square Feet | ft² 18,200,000  
Carrying amount of investment $ 364,400 0
PS-NSA JV    
Schedule of Equity Method Investments [Line Items]    
Ownership interest (in percent) 20.00%  
Number of Properties | company 313  
Net Rentable Square Feet | ft² 19,700,000  
Carrying amount of investment $ 169,930 $ 0