Information by Business Segment - Segment Financial Information for Our Reportable Segments (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
Dec. 31, 2020 |
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
$ 164,411
|
$ 144,774
|
$ 326,133
|
$ 290,571
|
|
| Property operating expenses |
(54,616)
|
(50,204)
|
(111,590)
|
(100,203)
|
|
| UJV NOI allocable to COPT |
973
|
1,725
|
1,890
|
3,438
|
|
| Segment assets |
4,052,032
|
4,011,325
|
4,052,032
|
4,011,325
|
$ 4,077,023
|
| Segment assets |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
3,403,558
|
3,140,539
|
3,403,558
|
3,140,539
|
|
| Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
144,423
|
132,538
|
289,587
|
264,654
|
|
| Property operating expenses |
(54,616)
|
(50,204)
|
(111,590)
|
(100,203)
|
|
| UJV NOI allocable to COPT |
973
|
1,725
|
1,890
|
3,438
|
|
| NOI from real estate operations |
90,780
|
84,059
|
179,887
|
167,889
|
|
| Additions to long-lived assets |
21,010
|
24,870
|
33,240
|
41,464
|
|
| Transfers from non-operating properties |
90,332
|
83,779
|
105,086
|
141,956
|
|
| Real estate operations | Defense/Information Technology Locations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
118,530
|
110,244
|
238,180
|
219,030
|
|
| Property operating expenses |
(41,730)
|
(39,551)
|
(86,220)
|
(78,542)
|
|
| UJV NOI allocable to COPT |
973
|
1,725
|
1,890
|
3,438
|
|
| NOI from real estate operations |
77,773
|
72,418
|
153,850
|
143,926
|
|
| Additions to long-lived assets |
16,791
|
12,418
|
24,767
|
24,712
|
|
| Transfers from non-operating properties |
52,332
|
83,779
|
66,729
|
141,956
|
|
| Real estate operations | Defense/Information Technology Locations | Fort Meade/BW Corridor |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
64,840
|
62,698
|
131,286
|
127,136
|
|
| Property operating expenses |
(21,714)
|
(20,859)
|
(46,385)
|
(42,081)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
43,126
|
41,839
|
84,901
|
85,055
|
|
| Additions to long-lived assets |
11,511
|
6,958
|
18,392
|
14,633
|
|
| Transfers from non-operating properties |
784
|
3,975
|
1,140
|
4,513
|
|
| Real estate operations | Defense/Information Technology Locations | Northern Virginia Defense/IT |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
14,712
|
14,447
|
29,923
|
28,125
|
|
| Property operating expenses |
(5,538)
|
(5,335)
|
(11,414)
|
(10,520)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
9,174
|
9,112
|
18,509
|
17,605
|
|
| Additions to long-lived assets |
1,022
|
3,204
|
1,307
|
5,895
|
|
| Transfers from non-operating properties |
25
|
524
|
113
|
780
|
|
| Real estate operations | Defense/Information Technology Locations | Lackland Air Force Base |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
13,688
|
13,257
|
26,243
|
25,333
|
|
| Property operating expenses |
(7,506)
|
(7,785)
|
(14,380)
|
(14,580)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
6,182
|
5,472
|
11,863
|
10,753
|
|
| Additions to long-lived assets |
0
|
0
|
0
|
0
|
|
| Transfers from non-operating properties |
49,218
|
145
|
49,269
|
160
|
|
| Real estate operations | Defense/Information Technology Locations | Navy Support Locations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
8,445
|
8,119
|
16,843
|
16,460
|
|
| Property operating expenses |
(3,227)
|
(3,171)
|
(6,660)
|
(6,456)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
5,218
|
4,948
|
10,183
|
10,004
|
|
| Additions to long-lived assets |
1,205
|
2,110
|
1,757
|
3,868
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Real estate operations | Defense/Information Technology Locations | Redstone Arsenal |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
8,775
|
4,647
|
17,028
|
9,323
|
|
| Property operating expenses |
(2,968)
|
(1,612)
|
(5,522)
|
(3,459)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
5,807
|
3,035
|
11,506
|
5,864
|
|
| Additions to long-lived assets |
3,053
|
146
|
3,311
|
316
|
|
| Transfers from non-operating properties |
1,288
|
29,171
|
14,205
|
30,307
|
|
| Real estate operations | Defense/Information Technology Locations | Data Center Shells |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
8,070
|
7,076
|
16,857
|
12,653
|
|
| Property operating expenses |
(777)
|
(789)
|
(1,859)
|
(1,446)
|
|
| UJV NOI allocable to COPT |
973
|
1,725
|
1,890
|
3,438
|
|
| NOI from real estate operations |
8,266
|
8,012
|
16,888
|
14,645
|
|
| Additions to long-lived assets |
0
|
0
|
0
|
0
|
|
| Transfers from non-operating properties |
1,017
|
49,964
|
2,002
|
106,196
|
|
| Real estate operations | Regional Office |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
16,884
|
15,162
|
33,561
|
30,622
|
|
| Property operating expenses |
(7,842)
|
(6,888)
|
(15,506)
|
(14,425)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
9,042
|
8,274
|
18,055
|
16,197
|
|
| Additions to long-lived assets |
4,089
|
4,445
|
8,111
|
7,802
|
|
| Transfers from non-operating properties |
38,000
|
0
|
38,357
|
0
|
|
| Real estate operations | Operating wholesale data center |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
8,175
|
6,455
|
16,265
|
13,627
|
|
| Property operating expenses |
(4,629)
|
(3,463)
|
(9,050)
|
(6,696)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
3,546
|
2,992
|
7,215
|
6,931
|
|
| Additions to long-lived assets |
121
|
7,904
|
349
|
8,782
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Real estate operations | Other |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
834
|
677
|
1,581
|
1,375
|
|
| Property operating expenses |
(415)
|
(302)
|
(814)
|
(540)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
419
|
375
|
767
|
835
|
|
| Additions to long-lived assets |
9
|
103
|
13
|
168
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Real estate operations | Segment assets |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
3,403,558
|
3,140,539
|
3,403,558
|
3,140,539
|
|
| Real estate operations | Segment assets | Defense/Information Technology Locations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
2,665,192
|
2,542,060
|
2,665,192
|
2,542,060
|
|
| Real estate operations | Segment assets | Defense/Information Technology Locations | Fort Meade/BW Corridor |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
1,266,622
|
1,271,790
|
1,266,622
|
1,271,790
|
|
| Real estate operations | Segment assets | Defense/Information Technology Locations | Northern Virginia Defense/IT |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
385,050
|
394,363
|
385,050
|
394,363
|
|
| Real estate operations | Segment assets | Defense/Information Technology Locations | Lackland Air Force Base |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
189,418
|
144,253
|
189,418
|
144,253
|
|
| Real estate operations | Segment assets | Defense/Information Technology Locations | Navy Support Locations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
174,633
|
181,744
|
174,633
|
181,744
|
|
| Real estate operations | Segment assets | Defense/Information Technology Locations | Redstone Arsenal |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
295,672
|
167,161
|
295,672
|
167,161
|
|
| Real estate operations | Segment assets | Defense/Information Technology Locations | Data Center Shells |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
353,797
|
382,749
|
353,797
|
382,749
|
|
| Real estate operations | Segment assets | Regional Office |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
538,518
|
389,058
|
538,518
|
389,058
|
|
| Real estate operations | Segment assets | Operating wholesale data center |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
196,395
|
205,711
|
196,395
|
205,711
|
|
| Real estate operations | Segment assets | Other |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
$ 3,453
|
$ 3,710
|
$ 3,453
|
$ 3,710
|
|