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Leases - Ground Leases (Details)
ft² in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
USD ($)
lease
property
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
ft²
lease
property
Sep. 30, 2022
USD ($)
Lessee, Lease, Description [Line Items]        
Number of properties subject to ground leases | property 240   240  
Square feet subject to ground leases | ft²     17.4  
Number of prepaid ground leases     75  
Amortization of prepaid rent | $ $ 0.3 $ 0.1 $ 1.0 $ 0.4
Number of non-prepaid ground leases 165   165  
Minimum        
Lessee, Lease, Description [Line Items]        
Ground lease, initial term 40 years   40 years  
Maximum        
Lessee, Lease, Description [Line Items]        
Ground lease, initial term 99 years   99 years