Information by Business Segment - Segment Financial Information for Our Reportable Segments (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
$ 197,392
|
$ 189,915
|
$ 398,029
|
$ 377,771
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(72,586)
|
(66,915)
|
(154,021)
|
(138,955)
|
|
| UJV NOI allocable to COPT Defense |
2,050
|
1,870
|
4,106
|
3,759
|
|
| Segment assets |
4,515,281
|
4,286,950
|
4,515,281
|
4,286,950
|
$ 4,701,790
|
| Reportable segments |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
190,626
|
177,457
|
385,222
|
355,054
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(72,586)
|
(66,915)
|
(154,021)
|
(138,955)
|
|
| UJV NOI allocable to COPT Defense |
2,050
|
1,870
|
4,106
|
3,759
|
|
| Total other segment items |
(70,536)
|
(65,045)
|
(149,915)
|
(135,196)
|
|
| NOI |
120,090
|
112,412
|
235,307
|
219,858
|
|
| Additions to long-lived assets |
24,225
|
26,645
|
42,980
|
46,060
|
|
| Transfers from non-operating properties |
50,818
|
35,802
|
69,792
|
48,138
|
|
| Segment assets |
3,940,137
|
3,727,059
|
3,940,137
|
3,727,059
|
|
| Reportable segments | Defense/IT Portfolio |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
171,925
|
158,709
|
346,930
|
318,136
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(62,581)
|
(56,795)
|
(132,572)
|
(120,126)
|
|
| UJV NOI allocable to COPT Defense |
2,050
|
1,870
|
4,106
|
3,759
|
|
| Total other segment items |
(60,531)
|
(54,925)
|
(128,466)
|
(116,367)
|
|
| NOI |
111,394
|
103,784
|
218,464
|
201,769
|
|
| Additions to long-lived assets |
18,969
|
23,016
|
31,123
|
40,698
|
|
| Transfers from non-operating properties |
50,521
|
33,577
|
69,107
|
43,139
|
|
| Segment assets |
3,610,933
|
3,410,577
|
3,610,933
|
3,410,577
|
|
| Reportable segments | Defense/IT Portfolio | Fort Meade/BW Corridor |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
81,932
|
81,337
|
169,465
|
165,945
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(28,538)
|
(26,897)
|
(65,018)
|
(58,827)
|
|
| UJV NOI allocable to COPT Defense |
0
|
0
|
0
|
0
|
|
| Total other segment items |
(28,538)
|
(26,897)
|
(65,018)
|
(58,827)
|
|
| NOI |
53,394
|
54,440
|
104,447
|
107,118
|
|
| Additions to long-lived assets |
12,510
|
9,971
|
20,156
|
18,064
|
|
| Transfers from non-operating properties |
41,020
|
13,896
|
41,136
|
15,233
|
|
| Segment assets |
1,485,856
|
1,447,969
|
1,485,856
|
1,447,969
|
|
| Reportable segments | Defense/IT Portfolio | Redstone Arsenal |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
20,137
|
18,977
|
40,782
|
35,399
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(6,715)
|
(6,160)
|
(13,964)
|
(12,454)
|
|
| UJV NOI allocable to COPT Defense |
0
|
0
|
0
|
0
|
|
| Total other segment items |
(6,715)
|
(6,160)
|
(13,964)
|
(12,454)
|
|
| NOI |
13,422
|
12,817
|
26,818
|
22,945
|
|
| Additions to long-lived assets |
2,624
|
6,938
|
3,506
|
10,186
|
|
| Transfers from non-operating properties |
2,001
|
14,356
|
4,910
|
18,622
|
|
| Segment assets |
611,419
|
617,563
|
611,419
|
617,563
|
|
| Reportable segments | Defense/IT Portfolio | NoVA Defense/IT |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
24,824
|
22,018
|
49,640
|
45,180
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(9,336)
|
(8,858)
|
(19,692)
|
(18,947)
|
|
| UJV NOI allocable to COPT Defense |
0
|
0
|
0
|
0
|
|
| Total other segment items |
(9,336)
|
(8,858)
|
(19,692)
|
(18,947)
|
|
| NOI |
15,488
|
13,160
|
29,948
|
26,233
|
|
| Additions to long-lived assets |
1,575
|
3,263
|
3,578
|
5,819
|
|
| Transfers from non-operating properties |
826
|
(2)
|
831
|
16
|
|
| Segment assets |
555,611
|
490,419
|
555,611
|
490,419
|
|
| Reportable segments | Defense/IT Portfolio | Lackland Air Force Base |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
19,552
|
17,475
|
37,906
|
33,885
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(9,849)
|
(9,241)
|
(18,847)
|
(18,240)
|
|
| UJV NOI allocable to COPT Defense |
0
|
0
|
0
|
0
|
|
| Total other segment items |
(9,849)
|
(9,241)
|
(18,847)
|
(18,240)
|
|
| NOI |
9,703
|
8,234
|
19,059
|
15,645
|
|
| Additions to long-lived assets |
391
|
98
|
335
|
217
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Segment assets |
192,906
|
195,567
|
192,906
|
195,567
|
|
| Reportable segments | Defense/IT Portfolio | Navy Support |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
9,523
|
8,258
|
18,515
|
16,218
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(4,104)
|
(3,856)
|
(8,463)
|
(8,022)
|
|
| UJV NOI allocable to COPT Defense |
0
|
0
|
0
|
0
|
|
| Total other segment items |
(4,104)
|
(3,856)
|
(8,463)
|
(8,022)
|
|
| NOI |
5,419
|
4,402
|
10,052
|
8,196
|
|
| Additions to long-lived assets |
1,869
|
2,746
|
3,548
|
6,412
|
|
| Transfers from non-operating properties |
0
|
2
|
0
|
2
|
|
| Segment assets |
170,497
|
164,254
|
170,497
|
164,254
|
|
| Reportable segments | Defense/IT Portfolio | Data Center Shells |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
15,957
|
10,644
|
30,622
|
21,509
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(4,039)
|
(1,783)
|
(6,588)
|
(3,636)
|
|
| UJV NOI allocable to COPT Defense |
2,050
|
1,870
|
4,106
|
3,759
|
|
| Total other segment items |
(1,989)
|
87
|
(2,482)
|
123
|
|
| NOI |
13,968
|
10,731
|
28,140
|
21,632
|
|
| Additions to long-lived assets |
0
|
0
|
0
|
0
|
|
| Transfers from non-operating properties |
6,674
|
5,325
|
22,230
|
9,266
|
|
| Segment assets |
594,644
|
494,805
|
594,644
|
494,805
|
|
| Reportable segments | Other |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
18,701
|
18,748
|
38,292
|
36,918
|
|
| Other segment items |
|
|
|
|
|
| Property operating expenses |
(10,005)
|
(10,120)
|
(21,449)
|
(18,829)
|
|
| UJV NOI allocable to COPT Defense |
0
|
0
|
0
|
0
|
|
| Total other segment items |
(10,005)
|
(10,120)
|
(21,449)
|
(18,829)
|
|
| NOI |
8,696
|
8,628
|
16,843
|
18,089
|
|
| Additions to long-lived assets |
5,256
|
3,629
|
11,857
|
5,362
|
|
| Transfers from non-operating properties |
297
|
2,225
|
685
|
4,999
|
|
| Segment assets |
$ 329,204
|
$ 316,482
|
$ 329,204
|
$ 316,482
|
|