Quarterly report pursuant to Section 13 or 15(d)

Information by Business Segment (Details)

v3.8.0.1
Information by Business Segment (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Segment financial information for real estate operations      
Revenues from real estate operations $ 128,278 $ 126,767  
Property operating expenses (50,951) (48,519)  
UJV NOI allocable to COPT 1,199 1,202  
NOI from real estate operations 78,526 79,450  
Additions to long-lived assets 14,295 17,040  
Transfers from non-operating properties 20,094 12,645  
Segment assets 3,596,238 3,757,131 $ 3,595,205
Defense/Information Technology Locations      
Segment financial information for real estate operations      
Revenues from real estate operations 104,120 100,188  
Property operating expenses (38,463) (37,013)  
UJV NOI allocable to COPT 1,199 1,202  
NOI from real estate operations 66,856 64,377  
Additions to long-lived assets 10,248 8,190  
Transfers from non-operating properties 19,082 12,619  
Defense/Information Technology Locations | Fort Meade/BW Corridor      
Segment financial information for real estate operations      
Revenues from real estate operations 62,782 60,855  
Property operating expenses (21,604) (20,520)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 41,178 40,335  
Additions to long-lived assets 7,121 3,422  
Transfers from non-operating properties 17,186 13,416  
Defense/Information Technology Locations | Northern Virginia Defense/IT      
Segment financial information for real estate operations      
Revenues from real estate operations 12,561 11,707  
Property operating expenses (4,723) (4,452)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 7,838 7,255  
Additions to long-lived assets 1,940 2,468  
Transfers from non-operating properties 341 222  
Defense/Information Technology Locations | Lackland Air Force Base      
Segment financial information for real estate operations      
Revenues from real estate operations 11,443 11,634  
Property operating expenses (6,598) (6,802)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 4,845 4,832  
Additions to long-lived assets 0 0  
Transfers from non-operating properties 0 0  
Defense/Information Technology Locations | Navy Support Locations      
Segment financial information for real estate operations      
Revenues from real estate operations 7,870 7,010  
Property operating expenses (3,304) (3,209)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 4,566 3,801  
Additions to long-lived assets 1,108 2,168  
Transfers from non-operating properties (3) 0  
Defense/Information Technology Locations | Redstone Arsenal      
Segment financial information for real estate operations      
Revenues from real estate operations 3,633 3,460  
Property operating expenses (1,440) (1,371)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 2,193 2,089  
Additions to long-lived assets 79 132  
Transfers from non-operating properties 444 (4)  
Defense/Information Technology Locations | Data Center Shells      
Segment financial information for real estate operations      
Revenues from real estate operations 5,831 5,522  
Property operating expenses (794) (659)  
UJV NOI allocable to COPT 1,199 1,202  
NOI from real estate operations 6,236 6,065  
Additions to long-lived assets 0 0  
Transfers from non-operating properties 1,114 (1,015)  
Regional Office      
Segment financial information for real estate operations      
Revenues from real estate operations 15,284 18,276  
Property operating expenses (7,878) (7,486)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 7,406 10,790  
Additions to long-lived assets 3,884 7,120  
Transfers from non-operating properties 0 0  
Operating wholesale data centers      
Segment financial information for real estate operations      
Revenues from real estate operations 8,077 6,770  
Property operating expenses (4,258) (3,365)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 3,819 3,405  
Additions to long-lived assets 36 1,574  
Transfers from non-operating properties 1,012 8  
Other Segments      
Segment financial information for real estate operations      
Revenues from real estate operations 797 1,533  
Property operating expenses (352) (655)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 445 878  
Additions to long-lived assets 127 156  
Transfers from non-operating properties 0 18  
Segment assets      
Segment financial information for real estate operations      
Segment assets 3,025,966 2,970,117  
Segment assets | Defense/Information Technology Locations      
Segment financial information for real estate operations      
Segment assets 2,401,748 2,280,397  
Segment assets | Defense/Information Technology Locations | Fort Meade/BW Corridor      
Segment financial information for real estate operations      
Segment assets 1,273,359 1,258,437  
Segment assets | Defense/Information Technology Locations | Northern Virginia Defense/IT      
Segment financial information for real estate operations      
Segment assets 399,202 361,449  
Segment assets | Defense/Information Technology Locations | Lackland Air Force Base      
Segment financial information for real estate operations      
Segment assets 127,855 131,194  
Segment assets | Defense/Information Technology Locations | Navy Support Locations      
Segment financial information for real estate operations      
Segment assets 192,116 195,892  
Segment assets | Defense/Information Technology Locations | Redstone Arsenal      
Segment financial information for real estate operations      
Segment assets 107,096 109,171  
Segment assets | Defense/Information Technology Locations | Data Center Shells      
Segment financial information for real estate operations      
Segment assets 302,120 224,254  
Segment assets | Regional Office      
Segment financial information for real estate operations      
Segment assets 397,355 439,079  
Segment assets | Operating wholesale data centers      
Segment financial information for real estate operations      
Segment assets 222,738 229,630  
Segment assets | Other Segments      
Segment financial information for real estate operations      
Segment assets $ 4,125 $ 21,011