Annual report pursuant to Section 13 and 15(d)

Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details)

v3.24.0.1
Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
property
Jan. 10, 2023
Dec. 31, 2022
USD ($)
Dec. 14, 2022
Jun. 02, 2021
Schedule of Equity Method Investments [Line Items]          
Investment in unconsolidated real estate joint ventures $ 41,052   $ 21,460    
Other liabilities $ 18,996   18,556    
Unconsolidated real estate joint ventures          
Schedule of Equity Method Investments [Line Items]          
Number of Properties | property 24        
Carrying value of Investments $ 38,275   20,001    
Investment in unconsolidated real estate joint ventures 41,100   21,500    
Other liabilities $ 2,800   1,500    
Redshift          
Schedule of Equity Method Investments [Line Items]          
Nominal Ownership % 10.00% 10.00%      
Number of Properties | property 3        
Carrying value of Investments $ 21,053   0    
BREIT COPT DC JV LLC          
Schedule of Equity Method Investments [Line Items]          
Nominal Ownership % 10.00%        
Number of Properties | property 9        
Carrying value of Investments $ 10,629   11,568    
Quark          
Schedule of Equity Method Investments [Line Items]          
Nominal Ownership % 10.00%     10.00%  
Number of Properties | property 2        
Carrying value of Investments $ 6,727   6,758    
BRE- COPT 3          
Schedule of Equity Method Investments [Line Items]          
Nominal Ownership % 10.00%       10.00%
Number of Properties | property 2        
Carrying value of Investments $ 2,643   3,134    
B RE COPT DC JV II LLC          
Schedule of Equity Method Investments [Line Items]          
Nominal Ownership % 10.00%        
Number of Properties | property 8        
Carrying value of Investments $ (2,777)   (1,459)    
Difference between the joint venture's cost basis and the entity's share of underlying equity in the net assets $ 6,800   $ 7,000