Annual report pursuant to Section 13 and 15(d)

Information by Business Segment (Segment Financial Information for Our Reportable Segments) (Details)

v3.20.4
Information by Business Segment (Segment Financial Information for Our Reportable Segments) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Segment financial information for real estate operations      
Revenues from real estate operations $ 609,365 $ 641,226 $ 578,112
Property operating expenses (203,840) (198,143) (201,035)
UJV NOI allocable to COPT 6,951 5,705 4,818
Segment assets 4,077,023 3,854,453  
Segment assets      
Segment financial information for real estate operations      
Segment assets 3,388,978 3,024,958  
Real estate operations      
Segment financial information for real estate operations      
Revenues from real estate operations 538,725 527,463 517,253
Property operating expenses (203,840) (198,143) (201,035)
UJV NOI allocable to COPT 6,951 5,705 4,818
NOI from real estate operations 341,836 335,025 321,036
Additions to long-lived assets 81,479 76,350 74,742
Transfers from non-operating properties 476,362 226,001 166,143
Real estate operations | Defense/Information Technology Locations      
Segment financial information for real estate operations      
Revenues from real estate operations 447,519 435,486 421,053
Property operating expenses (159,377) (153,803) (153,004)
UJV NOI allocable to COPT 6,951 5,705 4,818
NOI from real estate operations 295,093 287,388 272,867
Additions to long-lived assets 52,924 54,404 53,676
Transfers from non-operating properties 393,271 227,013 163,839
Real estate operations | Defense/Information Technology Locations | Fort Meade/BW Corridor      
Segment financial information for real estate operations      
Revenues from real estate operations 254,197 252,781 248,927
Property operating expenses (85,032) (82,815) (82,975)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 169,165 169,966 165,952
Additions to long-lived assets 31,295 34,618 38,612
Transfers from non-operating properties 21,859 18,606 35,648
Real estate operations | Defense/Information Technology Locations | Northern Virginia Defense/IT      
Segment financial information for real estate operations      
Revenues from real estate operations 57,817 55,742 53,518
Property operating expenses (21,321) (19,779) (20,330)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 36,496 35,963 33,188
Additions to long-lived assets 11,620 9,326 7,956
Transfers from non-operating properties 2,557 4,548 10,231
Real estate operations | Defense/Information Technology Locations | Lackland Air Force Base      
Segment financial information for real estate operations      
Revenues from real estate operations 50,982 51,140 46,286
Property operating expenses (29,055) (29,042) (26,888)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 21,927 22,098 19,398
Additions to long-lived assets 0 0 0
Transfers from non-operating properties 456 10,781 14,718
Real estate operations | Defense/Information Technology Locations | Navy Support Locations      
Segment financial information for real estate operations      
Revenues from real estate operations 32,869 32,659 31,927
Property operating expenses (12,655) (13,579) (13,536)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 20,214 19,080 18,391
Additions to long-lived assets 7,104 8,912 6,535
Transfers from non-operating properties 0 0 (116)
Real estate operations | Defense/Information Technology Locations | Redstone Arsenal      
Segment financial information for real estate operations      
Revenues from real estate operations 22,515 16,593 14,745
Property operating expenses (8,119) (6,626) (6,050)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 14,396 9,967 8,695
Additions to long-lived assets 2,905 1,548 573
Transfers from non-operating properties 138,122 33,606 4,167
Real estate operations | Defense/Information Technology Locations | Data Center Shells      
Segment financial information for real estate operations      
Revenues from real estate operations 29,139 26,571 25,650
Property operating expenses (3,195) (1,962) (3,225)
UJV NOI allocable to COPT 6,951 5,705 4,818
NOI from real estate operations 32,895 30,314 27,243
Additions to long-lived assets 0 0 0
Transfers from non-operating properties 230,277 159,472 99,191
Real estate operations | Regional Office      
Segment financial information for real estate operations      
Revenues from real estate operations 60,627 59,611 61,181
Property operating expenses (29,144) (29,682) (30,253)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 31,483 29,929 30,928
Additions to long-lived assets 17,232 20,925 19,730
Transfers from non-operating properties 83,091 0 0
Real estate operations | Operating Wholesale Data Center      
Segment financial information for real estate operations      
Revenues from real estate operations 27,788 29,405 31,892
Property operating expenses (14,171) (13,213) (16,342)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 13,617 16,192 15,550
Additions to long-lived assets 11,158 893 856
Transfers from non-operating properties 0 (1,012) 2,304
Real estate operations | Other      
Segment financial information for real estate operations      
Revenues from real estate operations 2,791 2,961 3,127
Property operating expenses (1,148) (1,445) (1,436)
UJV NOI allocable to COPT 0 0 0
NOI from real estate operations 1,643 1,516 1,691
Additions to long-lived assets 165 128 480
Transfers from non-operating properties 0 0 0
Real estate operations | Segment assets      
Segment financial information for real estate operations      
Segment assets 3,388,978 3,024,958 3,084,862
Real estate operations | Segment assets | Defense/Information Technology Locations      
Segment financial information for real estate operations      
Segment assets 2,692,912 2,426,019 2,468,727
Real estate operations | Segment assets | Defense/Information Technology Locations | Fort Meade/BW Corridor      
Segment financial information for real estate operations      
Segment assets 1,277,849 1,280,656 1,279,571
Real estate operations | Segment assets | Defense/Information Technology Locations | Northern Virginia Defense/IT      
Segment financial information for real estate operations      
Segment assets 392,714 396,914 399,339
Real estate operations | Segment assets | Defense/Information Technology Locations | Lackland Air Force Base      
Segment financial information for real estate operations      
Segment assets 142,137 146,592 139,731
Real estate operations | Segment assets | Defense/Information Technology Locations | Navy Support Locations      
Segment financial information for real estate operations      
Segment assets 178,897 184,257 188,911
Real estate operations | Segment assets | Defense/Information Technology Locations | Redstone Arsenal      
Segment financial information for real estate operations      
Segment assets 281,386 138,501 108,010
Real estate operations | Segment assets | Defense/Information Technology Locations | Data Center Shells      
Segment financial information for real estate operations      
Segment assets 419,929 279,099 353,165
Real estate operations | Segment assets | Regional Office      
Segment financial information for real estate operations      
Segment assets 490,422 392,319 395,380
Real estate operations | Segment assets | Operating Wholesale Data Center      
Segment financial information for real estate operations      
Segment assets 202,089 202,935 216,640
Real estate operations | Segment assets | Other      
Segment financial information for real estate operations      
Segment assets $ 3,555 $ 3,685 $ 4,115