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Related Party Transactions (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
ft²
property
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
ft²
property
Jun. 30, 2022
USD ($)
Feb. 28, 2023
USD ($)
Dec. 31, 2022
USD ($)
Related Party Transaction [Line Items]            
Total revenues $ 190,542 $ 198,022 $ 355,164 $ 362,056    
Area of real estate property (in square feet) | ft² 9,400,000   9,400,000      
Accounts payable and accrued expenses $ 71,709   $ 71,709     $ 80,729
Affliliated entity | Disposal Group, Disposed of by Sale, Not Discontinued Operations | 69-97 and 103-107 Main Street            
Related Party Transaction [Line Items]            
Accounts payable and accrued expenses 100   100      
Affliliated entity | Disposal Group, Disposed of by Sale, Not Discontinued Operations | 69-97 and 103-107 Main Street | SOFR            
Related Party Transaction [Line Items]            
Loan receivable         $ 600  
Basis spread on loan         3.50%  
Affliliated entity | Supervisory fee revenue | Third party management and other fees            
Related Party Transaction [Line Items]            
Total revenues 300 300 500 500    
Affliliated entity | Property management fee revenue | Third party management and other fees            
Related Party Transaction [Line Items]            
Total revenues 50 100 200 100    
Affliliated entity | Leased space rental            
Related Party Transaction [Line Items]            
Total revenues $ 100 $ 100 $ 200 $ 200    
Number of properties | property 1   1      
Lease cancellation, notice period (in days)     90 days      
Undivided Interest            
Related Party Transaction [Line Items]            
Area of real estate property (in square feet) | ft² 5,447   5,447      
Chairman emeritus | Leased space rental            
Related Party Transaction [Line Items]            
Percentage of lease space occupied by Chairman emeritus and employee     15.00%