Information by Business Segment (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Dec. 31, 2019 |
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
$ 144,774
|
$ 175,070
|
$ 290,571
|
$ 324,010
|
|
| Property operating expenses |
(50,204)
|
(47,886)
|
(100,203)
|
(97,331)
|
|
| UJV NOI allocable to COPT |
1,725
|
1,251
|
3,438
|
2,470
|
|
| Segment assets |
4,011,325
|
3,803,469
|
4,011,325
|
3,803,469
|
$ 3,854,453
|
| Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
132,538
|
132,771
|
264,654
|
264,761
|
|
| Property operating expenses |
(50,204)
|
(47,886)
|
(100,203)
|
(97,331)
|
|
| UJV NOI allocable to COPT |
1,725
|
1,251
|
3,438
|
2,470
|
|
| NOI from real estate operations |
84,059
|
86,136
|
167,889
|
169,900
|
|
| Additions to long-lived assets |
24,870
|
15,665
|
41,464
|
30,519
|
|
| Transfers from non-operating properties |
83,779
|
101,611
|
141,956
|
141,086
|
|
| Defense/Information Technology Locations | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
110,244
|
108,452
|
219,030
|
216,975
|
|
| Property operating expenses |
(39,551)
|
(36,330)
|
(78,542)
|
(75,212)
|
|
| UJV NOI allocable to COPT |
1,725
|
1,251
|
3,438
|
2,470
|
|
| NOI from real estate operations |
72,418
|
73,373
|
143,926
|
144,233
|
|
| Additions to long-lived assets |
12,418
|
10,666
|
24,712
|
21,365
|
|
| Transfers from non-operating properties |
83,779
|
101,611
|
141,956
|
141,086
|
|
| Defense/Information Technology Locations | Fort Meade/BW Corridor | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
62,698
|
61,659
|
127,136
|
124,342
|
|
| Property operating expenses |
(20,859)
|
(19,344)
|
(42,081)
|
(41,679)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
41,839
|
42,315
|
85,055
|
82,663
|
|
| Additions to long-lived assets |
6,958
|
7,499
|
14,633
|
11,434
|
|
| Transfers from non-operating properties |
3,975
|
1,338
|
4,513
|
6,378
|
|
| Defense/Information Technology Locations | Northern Virginia Defense/IT | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
14,447
|
13,912
|
28,125
|
28,743
|
|
| Property operating expenses |
(5,335)
|
(4,694)
|
(10,520)
|
(9,986)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
9,112
|
9,218
|
17,605
|
18,757
|
|
| Additions to long-lived assets |
3,204
|
1,703
|
5,895
|
3,150
|
|
| Transfers from non-operating properties |
524
|
20
|
780
|
4,529
|
|
| Defense/Information Technology Locations | Lackland Air Force Base | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
13,257
|
12,104
|
25,333
|
23,665
|
|
| Property operating expenses |
(7,785)
|
(6,648)
|
(14,580)
|
(12,607)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
5,472
|
5,456
|
10,753
|
11,058
|
|
| Additions to long-lived assets |
0
|
0
|
0
|
0
|
|
| Transfers from non-operating properties |
145
|
1,833
|
160
|
8,336
|
|
| Defense/Information Technology Locations | Navy Support Locations | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
8,119
|
8,185
|
16,460
|
16,340
|
|
| Property operating expenses |
(3,171)
|
(3,286)
|
(6,456)
|
(6,690)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
4,948
|
4,899
|
10,004
|
9,650
|
|
| Additions to long-lived assets |
2,110
|
928
|
3,868
|
5,945
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Defense/Information Technology Locations | Redstone Arsenal | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
4,647
|
3,968
|
9,323
|
7,907
|
|
| Property operating expenses |
(1,612)
|
(1,599)
|
(3,459)
|
(3,138)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
3,035
|
2,369
|
5,864
|
4,769
|
|
| Additions to long-lived assets |
146
|
536
|
316
|
836
|
|
| Transfers from non-operating properties |
29,171
|
5,576
|
30,307
|
9,211
|
|
| Defense/Information Technology Locations | Data Center Shells | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
7,076
|
8,624
|
12,653
|
15,978
|
|
| Property operating expenses |
(789)
|
(759)
|
(1,446)
|
(1,112)
|
|
| UJV NOI allocable to COPT |
1,725
|
1,251
|
3,438
|
2,470
|
|
| NOI from real estate operations |
8,012
|
9,116
|
14,645
|
17,336
|
|
| Additions to long-lived assets |
0
|
0
|
0
|
0
|
|
| Transfers from non-operating properties |
49,964
|
92,844
|
106,196
|
112,632
|
|
| Regional Office | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
15,162
|
15,018
|
30,622
|
29,851
|
|
| Property operating expenses |
(6,888)
|
(7,590)
|
(14,425)
|
(15,006)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
8,274
|
7,428
|
16,197
|
14,845
|
|
| Additions to long-lived assets |
4,445
|
4,870
|
7,802
|
8,859
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Operating wholesale data center | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
6,455
|
8,560
|
13,627
|
16,431
|
|
| Property operating expenses |
(3,463)
|
(3,618)
|
(6,696)
|
(6,456)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
2,992
|
4,942
|
6,931
|
9,975
|
|
| Additions to long-lived assets |
7,904
|
95
|
8,782
|
251
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Other | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Revenues from real estate operations |
677
|
741
|
1,375
|
1,504
|
|
| Property operating expenses |
(302)
|
(348)
|
(540)
|
(657)
|
|
| UJV NOI allocable to COPT |
0
|
0
|
0
|
0
|
|
| NOI from real estate operations |
375
|
393
|
835
|
847
|
|
| Additions to long-lived assets |
103
|
34
|
168
|
44
|
|
| Transfers from non-operating properties |
0
|
0
|
0
|
0
|
|
| Segment assets |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
3,140,539
|
3,036,140
|
3,140,539
|
3,036,140
|
|
| Segment assets | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
3,140,539
|
3,036,140
|
3,140,539
|
3,036,140
|
|
| Segment assets | Defense/Information Technology Locations | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
2,542,060
|
2,429,467
|
2,542,060
|
2,429,467
|
|
| Segment assets | Defense/Information Technology Locations | Fort Meade/BW Corridor | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
1,271,790
|
1,274,336
|
1,271,790
|
1,274,336
|
|
| Segment assets | Defense/Information Technology Locations | Northern Virginia Defense/IT | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
394,363
|
398,586
|
394,363
|
398,586
|
|
| Segment assets | Defense/Information Technology Locations | Lackland Air Force Base | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
144,253
|
146,475
|
144,253
|
146,475
|
|
| Segment assets | Defense/Information Technology Locations | Navy Support Locations | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
181,744
|
187,172
|
181,744
|
187,172
|
|
| Segment assets | Defense/Information Technology Locations | Redstone Arsenal | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
167,161
|
115,222
|
167,161
|
115,222
|
|
| Segment assets | Defense/Information Technology Locations | Data Center Shells | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
382,749
|
307,676
|
382,749
|
307,676
|
|
| Segment assets | Regional Office | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
389,058
|
393,110
|
389,058
|
393,110
|
|
| Segment assets | Operating wholesale data center | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
205,711
|
209,787
|
205,711
|
209,787
|
|
| Segment assets | Other | Real estate operations |
|
|
|
|
|
| Segment financial information for real estate operations |
|
|
|
|
|
| Segment assets |
$ 3,710
|
$ 3,776
|
$ 3,710
|
$ 3,776
|
|