Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Ground Lease Agreements) (Narrative) (Details)

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Commitments And Contingencies (Ground Lease Agreements) (Narrative) (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
USD ($)
item
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Lessee, Lease, Description [Line Items]      
Ground lease expense incurred $ 348 $ 568  
Operating lease $ 3,190   $ 23,686
Number of ground leases | item 2    
Maximum [Member]      
Lessee, Lease, Description [Line Items]      
Term of lease contract 82 years 6 months 29 days    
Borrowing rate 7.618%    
Accounting Standards Update 2016-02 [Member]      
Lessee, Lease, Description [Line Items]      
Operating lease $ 2,900