Quarterly report pursuant to Section 13 or 15(d)

Information by Business Segment (Details 4)

v3.20.2
Information by Business Segment (Details 4) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Reconciliation of segment assets to total assets      
Total COPT consolidated assets $ 4,011,325 $ 3,854,453 $ 3,803,469
Operating properties lease liabilities included in segment assets 20,796 $ 17,317  
Segment assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets 3,140,539   3,036,140
Operating properties lease liabilities included in segment assets 19,073   16,502
Other assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets 679,207   523,801
Non-operating property assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets $ 172,506   $ 227,026