Quarterly report pursuant to Section 13 or 15(d)

Information by Business Segment (Details 4)

v3.19.3
Information by Business Segment (Details 4) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Sep. 30, 2018
Reconciliation of segment assets to total assets      
Total COPT consolidated assets $ 3,855,369 $ 3,656,005 $ 3,650,366
Operating properties lease liabilities included in segment assets 16,686    
Segment assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets 3,024,072   3,074,986
Operating properties lease liabilities included in segment assets 16,645   0
Non-operating property assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets 597,301   420,109
Other assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets $ 217,351   $ 155,271