Quarterly report pursuant to Section 13 or 15(d)

Information by Business Segment (Details)

v3.19.1
Information by Business Segment (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Segment financial information for real estate operations      
Revenues from real estate operations $ 148,940 $ 155,476  
Property operating expenses (49,445) (50,951)  
UJV NOI allocable to COPT 1,219 1,199  
Segment assets 3,775,859 3,596,238 $ 3,656,005
Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 131,990 128,278  
Property operating expenses (49,445) (50,951)  
UJV NOI allocable to COPT 1,219 1,199  
NOI from real estate operations 83,764 78,526  
Additions to long-lived assets 14,854 14,295  
Transfers from non-operating properties 39,475 20,094  
Defense/Information Technology Locations | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 108,523 104,120  
Property operating expenses (38,882) (38,463)  
UJV NOI allocable to COPT 1,219 1,199  
NOI from real estate operations 70,860 66,856  
Additions to long-lived assets 10,699 10,248  
Transfers from non-operating properties 39,475 19,082  
Defense/Information Technology Locations | Fort Meade/BW Corridor | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 62,683 62,782  
Property operating expenses (22,335) (21,604)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 40,348 41,178  
Additions to long-lived assets 3,935 7,121  
Transfers from non-operating properties 5,040 17,186  
Defense/Information Technology Locations | Northern Virginia Defense/IT | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 14,831 12,561  
Property operating expenses (5,292) (4,723)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 9,539 7,838  
Additions to long-lived assets 1,447 1,940  
Transfers from non-operating properties 4,509 341  
Defense/Information Technology Locations | Lackland Air Force Base | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 11,561 11,443  
Property operating expenses (5,959) (6,598)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 5,602 4,845  
Additions to long-lived assets 0 0  
Transfers from non-operating properties 6,503 0  
Defense/Information Technology Locations | Navy Support Locations | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 8,155 7,870  
Property operating expenses (3,404) (3,304)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 4,751 4,566  
Additions to long-lived assets 5,017 1,108  
Transfers from non-operating properties 0 (3)  
Defense/Information Technology Locations | Redstone Arsenal | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 3,939 3,633  
Property operating expenses (1,539) (1,440)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 2,400 2,193  
Additions to long-lived assets 300 79  
Transfers from non-operating properties 3,635 444  
Defense/Information Technology Locations | Data Center Shells | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 7,354 5,831  
Property operating expenses (353) (794)  
UJV NOI allocable to COPT 1,219 1,199  
NOI from real estate operations 8,220 6,236  
Additions to long-lived assets 0 0  
Transfers from non-operating properties 19,788 1,114  
Regional Office | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 14,833 15,284  
Property operating expenses (7,416) (7,878)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 7,417 7,406  
Additions to long-lived assets 3,989 3,884  
Transfers from non-operating properties 0 0  
Operating wholesale data center | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 7,871 8,077  
Property operating expenses (2,838) (4,258)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 5,033 3,819  
Additions to long-lived assets 156 36  
Transfers from non-operating properties 0 1,012  
Other | Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 763 797  
Property operating expenses (309) (352)  
UJV NOI allocable to COPT 0 0  
NOI from real estate operations 454 445  
Additions to long-lived assets 10 127  
Transfers from non-operating properties 0 0  
Segment assets      
Segment financial information for real estate operations      
Segment assets 3,108,153 3,025,966  
Segment assets | Real estate operations      
Segment financial information for real estate operations      
Segment assets 3,108,153 3,025,966  
Segment assets | Defense/Information Technology Locations | Real estate operations      
Segment financial information for real estate operations      
Segment assets 2,496,255 2,401,748  
Segment assets | Defense/Information Technology Locations | Fort Meade/BW Corridor | Real estate operations      
Segment financial information for real estate operations      
Segment assets 1,279,983 1,273,359  
Segment assets | Defense/Information Technology Locations | Northern Virginia Defense/IT | Real estate operations      
Segment financial information for real estate operations      
Segment assets 400,741 399,202  
Segment assets | Defense/Information Technology Locations | Lackland Air Force Base | Real estate operations      
Segment financial information for real estate operations      
Segment assets 145,697 127,855  
Segment assets | Defense/Information Technology Locations | Navy Support Locations | Real estate operations      
Segment financial information for real estate operations      
Segment assets 189,192 192,116  
Segment assets | Defense/Information Technology Locations | Redstone Arsenal | Real estate operations      
Segment financial information for real estate operations      
Segment assets 110,195 107,096  
Segment assets | Defense/Information Technology Locations | Data Center Shells | Real estate operations      
Segment financial information for real estate operations      
Segment assets 370,447 302,120  
Segment assets | Regional Office | Real estate operations      
Segment financial information for real estate operations      
Segment assets 394,001 397,355  
Segment assets | Operating wholesale data center | Real estate operations      
Segment financial information for real estate operations      
Segment assets 213,993 222,738  
Segment assets | Other | Real estate operations      
Segment financial information for real estate operations      
Segment assets $ 3,904 $ 4,125