Consolidated Statements of Equity - USD ($)
$ in Thousands |
Total |
Forward Equity Sale Agreement |
Common Stock At-the-Market Program |
Common Shares |
Common Shares
Forward Equity Sale Agreement
|
Common Shares
Common Stock At-the-Market Program
|
Additional Paid-in Capital |
Additional Paid-in Capital
Forward Equity Sale Agreement
|
Additional Paid-in Capital
Common Stock At-the-Market Program
|
Cumulative Distributions in Excess of Net Income |
Accumulated Other Comprehensive Income (Loss) |
Noncontrolling Interests |
Corporate Office Properties, L.P. |
Corporate Office Properties, L.P.
Forward Equity Sale Agreement
|
Corporate Office Properties, L.P.
Common Stock At-the-Market Program
|
Corporate Office Properties, L.P.
Common Shares
|
Corporate Office Properties, L.P.
Common Shares
Forward Equity Sale Agreement
|
Corporate Office Properties, L.P.
Common Shares
Common Stock At-the-Market Program
|
Corporate Office Properties, L.P.
Accumulated Other Comprehensive Income (Loss)
|
Corporate Office Properties, L.P.
Noncontrolling Interests
|
Corporate Office Properties, L.P.
Limited Partner
|
Corporate Office Properties, L.P.
Limited Partner
Preferred Shares
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Cumulative effect of accounting change for adoption of hedge accounting guidance |
|
|
|
|
|
|
|
|
|
$ (276)
|
$ 276
|
|
|
|
|
$ (276)
|
|
|
$ 276
|
|
|
|
| Balance, as adjusted |
$ 1,468,307
|
|
|
$ 1,013
|
|
|
$ 2,201,047
|
|
|
(802,361)
|
2,443
|
$ 66,165
|
$ 1,468,307
|
|
|
1,444,746
|
|
|
2,449
|
$ 12,312
|
|
$ 8,800
|
| Balance (COPT: 101,292,299 and 110,241,868 shares as of December 31, 2017 and 2018 and 103,260,495 and 111,949,887 shares as of June 30, 2018 and 2019, respectively) at Dec. 31, 2017 |
$ 1,468,307
|
|
|
1,013
|
|
|
2,201,047
|
|
|
(802,085)
|
2,167
|
66,165
|
1,468,307
|
|
|
$ 1,445,022
|
|
|
2,173
|
12,312
|
|
$ 8,800
|
| Balance (preferred units) at Dec. 31, 2017 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
| Balance (in units/shares) at Dec. 31, 2017 |
101,292,299
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
104,543,177
|
|
|
|
|
|
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Conversion of common units to common shares (COPT: 1,841,810 and 97,539 shares for the three months ended September 30, 2018 and 2019 and 1,895,627 and 103,039 shares for the nine months ended September 30, 2018 and 2019, respectively) |
$ 0
|
|
|
19
|
|
|
27,263
|
|
|
|
|
(27,282)
|
|
|
|
|
|
|
|
|
|
|
| Common shares issued under sale agreements and programs |
$ 132,330
|
|
$ 29,732
|
|
$ 45
|
$ 10
|
|
$ 132,285
|
$ 29,722
|
|
|
|
|
$ 132,330
|
$ 29,732
|
|
$ 132,330
|
$ 29,732
|
|
|
|
|
| Common shares issued under sale agreements and programs (in units/shares) |
|
4,527,000
|
991,664
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,527,000
|
991,664
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (in units/shares) |
141,633
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
141,633
|
|
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (COPT: 4,254 and 11,749 shares for the three months ended September 30, 2018 and 2019 and 141,633 and 100,181 shares issued, net of redemptions for the nine months ended September 30, 2018 and 2019, respectively) |
$ 5,179
|
|
|
1
|
|
|
5,178
|
|
|
|
|
|
5,179
|
|
|
$ 5,179
|
|
|
|
|
|
|
| Redemption of vested equity awards |
(1,611)
|
|
|
|
|
|
(1,611)
|
|
|
|
|
|
(1,611)
|
|
|
(1,611)
|
|
|
|
|
|
|
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP |
0
|
|
|
|
|
|
(2,069)
|
|
|
|
|
2,069
|
|
|
|
|
|
|
|
|
|
|
| Comprehensive income |
66,188
|
|
|
|
|
|
|
|
|
55,281
|
7,665
|
3,242
|
66,188
|
|
|
56,813
|
|
|
7,904
|
976
|
|
$ 495
|
| Dividends/Distributions |
(86,428)
|
|
|
|
|
|
|
|
|
(86,428)
|
|
|
(89,054)
|
|
|
(88,559)
|
|
|
|
|
|
$ (495)
|
| Distributions to owners of common and preferred units in COPLP |
(2,626)
|
|
|
|
|
|
|
|
|
|
|
(2,626)
|
|
|
|
|
|
|
|
|
|
|
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries |
(11)
|
|
|
|
|
|
|
|
|
|
|
(11)
|
(11)
|
|
|
|
|
|
|
(11)
|
|
|
| Adjustment to arrive at fair value of redeemable noncontrolling interests |
$ (1,331)
|
|
|
|
|
|
(1,331)
|
|
|
|
|
|
(1,331)
|
|
|
$ (1,331)
|
|
|
|
|
|
|
| Balance (in units/shares) at Sep. 30, 2018 |
108,848,223
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
110,203,474
|
|
|
|
|
|
|
| Balance (preferred units) at Sep. 30, 2018 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
| Balance (COPT: 108,848,223 and 112,059,175 shares as of September 30, 2018 and 2019, respectively) at Sep. 30, 2018 |
$ 1,609,729
|
|
|
1,088
|
|
|
2,390,484
|
|
|
(833,508)
|
10,108
|
41,557
|
1,609,729
|
|
|
$ 1,577,299
|
|
|
10,353
|
13,277
|
|
$ 8,800
|
| Balance (COPT: 101,292,299 and 110,241,868 shares as of December 31, 2017 and 2018 and 103,260,495 and 111,949,887 shares as of June 30, 2018 and 2019, respectively) at Jun. 30, 2018 |
$ 1,508,485
|
|
|
1,033
|
|
|
2,254,430
|
|
|
(822,270)
|
9,012
|
66,280
|
1,508,485
|
|
|
$ 1,477,575
|
|
|
9,235
|
12,875
|
|
$ 8,800
|
| Balance (preferred units) at Jun. 30, 2018 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
| Balance (in units/shares) at Jun. 30, 2018 |
103,260,495
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
106,457,556
|
|
|
|
|
|
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Conversion of common units to common shares (COPT: 1,841,810 and 97,539 shares for the three months ended September 30, 2018 and 2019 and 1,895,627 and 103,039 shares for the nine months ended September 30, 2018 and 2019, respectively) |
$ 0
|
|
|
18
|
|
|
26,503
|
|
|
|
|
(26,521)
|
|
|
|
|
|
|
|
|
|
|
| Common shares issued under sale agreements and programs |
|
$ 80,103
|
$ 29,732
|
|
27
|
$ 10
|
|
80,076
|
$ 29,722
|
|
|
|
|
80,103
|
$ 29,732
|
|
$ 80,103
|
$ 29,732
|
|
|
|
|
| Common shares issued under sale agreements and programs (in units/shares) |
|
2,750,000
|
991,664
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,750,000
|
991,664
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (in units/shares) |
4,254
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,254
|
|
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (COPT: 4,254 and 11,749 shares for the three months ended September 30, 2018 and 2019 and 141,633 and 100,181 shares issued, net of redemptions for the nine months ended September 30, 2018 and 2019, respectively) |
$ 1,779
|
|
|
|
|
|
1,779
|
|
|
|
|
|
1,779
|
|
|
$ 1,779
|
|
|
|
|
|
|
| Redemption of vested equity awards |
(86)
|
|
|
|
|
|
(86)
|
|
|
|
|
|
(86)
|
|
|
(86)
|
|
|
|
|
|
|
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP |
0
|
|
|
|
|
|
(1,367)
|
|
|
|
|
1,367
|
|
|
|
|
|
|
|
|
|
|
| Comprehensive income |
20,766
|
|
|
|
|
|
|
|
|
18,697
|
1,096
|
973
|
20,766
|
|
|
19,077
|
|
|
1,118
|
406
|
|
$ 165
|
| Dividends/Distributions |
(29,935)
|
|
|
|
|
|
|
|
|
(29,935)
|
|
|
(30,473)
|
|
|
(30,308)
|
|
|
|
|
|
$ (165)
|
| Distributions to owners of common and preferred units in COPLP |
(538)
|
|
|
|
|
|
|
|
|
|
|
(538)
|
|
|
|
|
|
|
|
|
|
|
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries |
(4)
|
|
|
|
|
|
|
|
|
|
|
(4)
|
(4)
|
|
|
|
|
|
|
(4)
|
|
|
| Adjustment to arrive at fair value of redeemable noncontrolling interests |
$ (573)
|
|
|
|
|
|
(573)
|
|
|
|
|
|
(573)
|
|
|
$ (573)
|
|
|
|
|
|
|
| Balance (in units/shares) at Sep. 30, 2018 |
108,848,223
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
110,203,474
|
|
|
|
|
|
|
| Balance (preferred units) at Sep. 30, 2018 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
| Balance (COPT: 108,848,223 and 112,059,175 shares as of September 30, 2018 and 2019, respectively) at Sep. 30, 2018 |
$ 1,609,729
|
|
|
1,088
|
|
|
2,390,484
|
|
|
(833,508)
|
10,108
|
41,557
|
1,609,729
|
|
|
$ 1,577,299
|
|
|
10,353
|
13,277
|
|
$ 8,800
|
| Balance (COPT: 101,292,299 and 110,241,868 shares as of December 31, 2017 and 2018 and 103,260,495 and 111,949,887 shares as of June 30, 2018 and 2019, respectively) at Dec. 31, 2018 |
$ 1,627,048
|
|
|
1,102
|
|
|
2,431,355
|
|
|
(846,808)
|
(238)
|
41,637
|
1,627,048
|
|
|
$ 1,604,655
|
|
|
(121)
|
13,714
|
|
$ 8,800
|
| Balance (preferred units) at Dec. 31, 2018 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
352,000
|
| Balance (in units/shares) at Dec. 31, 2018 |
110,241,868
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
111,574,754
|
|
|
|
|
1,332,886
|
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Redemption of common units |
$ (25)
|
|
|
|
|
|
|
|
|
|
|
(25)
|
(25)
|
|
|
$ (25)
|
|
|
|
|
|
|
| Redemption of common units (in units) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(924)
|
|
|
|
|
|
|
| Conversion of common units to common shares (COPT: 1,841,810 and 97,539 shares for the three months ended September 30, 2018 and 2019 and 1,895,627 and 103,039 shares for the nine months ended September 30, 2018 and 2019, respectively) |
$ 0
|
|
|
1
|
|
|
1,555
|
|
|
|
|
(1,556)
|
|
|
|
|
|
|
|
|
|
|
| Common shares issued under sale agreements and programs |
|
$ 46,454
|
|
|
$ 16
|
|
|
$ 46,438
|
|
|
|
|
|
$ 46,454
|
|
|
$ 46,454
|
|
|
|
|
|
| Common shares issued under sale agreements and programs (in units/shares) |
|
1,614,087
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,614,087
|
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (in units/shares) |
100,181
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
355,683
|
|
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (COPT: 4,254 and 11,749 shares for the three months ended September 30, 2018 and 2019 and 141,633 and 100,181 shares issued, net of redemptions for the nine months ended September 30, 2018 and 2019, respectively) |
$ 5,530
|
|
|
2
|
|
|
4,574
|
|
|
|
|
954
|
5,530
|
|
|
$ 5,530
|
|
|
|
|
|
|
| Redemption of vested equity awards |
(1,973)
|
|
|
|
|
|
(1,973)
|
|
|
|
|
|
(1,973)
|
|
|
(1,973)
|
|
|
|
|
|
|
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP |
0
|
|
|
|
|
|
(522)
|
|
|
|
|
522
|
|
|
|
|
|
|
|
|
|
|
| Comprehensive income |
117,527
|
|
|
|
|
|
|
|
|
148,907
|
(34,342)
|
2,962
|
117,527
|
|
|
150,770
|
|
|
(34,770)
|
1,040
|
|
$ 487
|
| Dividends/Distributions |
(92,334)
|
|
|
|
|
|
|
|
|
(92,334)
|
|
|
(93,954)
|
|
|
(93,467)
|
|
|
|
|
|
$ (487)
|
| Contributions from noncontrolling interests in other consolidated entities |
2,570
|
|
|
|
|
|
|
|
|
|
|
2,570
|
2,570
|
|
|
|
|
|
|
2,570
|
|
|
| Distributions to owners of common and preferred units in COPLP |
(1,620)
|
|
|
|
|
|
|
|
|
|
|
(1,620)
|
|
|
|
|
|
|
|
|
|
|
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries |
(5,886)
|
|
|
|
|
|
|
|
|
|
|
(5,886)
|
(5,886)
|
|
|
|
|
|
|
(5,886)
|
|
|
| Adjustment to arrive at fair value of redeemable noncontrolling interests |
$ (1,344)
|
|
|
|
|
|
(1,344)
|
|
|
|
|
|
(1,344)
|
|
|
$ (1,344)
|
|
|
|
|
|
|
| Balance (in units/shares) at Sep. 30, 2019 |
112,059,175
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
113,543,600
|
|
|
|
|
1,484,425
|
|
| Balance (preferred units) at Sep. 30, 2019 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
352,000
|
| Balance (COPT: 108,848,223 and 112,059,175 shares as of September 30, 2018 and 2019, respectively) at Sep. 30, 2019 |
$ 1,695,947
|
|
|
1,121
|
|
|
2,480,083
|
|
|
(790,235)
|
(34,580)
|
39,558
|
1,695,947
|
|
|
$ 1,710,600
|
|
|
(34,891)
|
11,438
|
|
$ 8,800
|
| Balance (COPT: 101,292,299 and 110,241,868 shares as of December 31, 2017 and 2018 and 103,260,495 and 111,949,887 shares as of June 30, 2018 and 2019, respectively) at Jun. 30, 2019 |
$ 1,719,111
|
|
|
1,119
|
|
|
2,475,293
|
|
|
(780,667)
|
(23,465)
|
46,831
|
1,719,111
|
|
|
$ 1,716,912
|
|
|
(23,638)
|
17,037
|
|
$ 8,800
|
| Balance (preferred units) at Jun. 30, 2019 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
| Balance (in units/shares) at Jun. 30, 2019 |
111,949,887
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
113,532,731
|
|
|
|
|
|
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Redemption of common units |
$ (24)
|
|
|
|
|
|
|
|
|
|
|
(24)
|
(24)
|
|
|
$ (24)
|
|
|
|
|
|
|
| Redemption of common units (in units) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(880)
|
|
|
|
|
|
|
| Conversion of common units to common shares (COPT: 1,841,810 and 97,539 shares for the three months ended September 30, 2018 and 2019 and 1,895,627 and 103,039 shares for the nine months ended September 30, 2018 and 2019, respectively) |
$ 0
|
|
|
1
|
|
|
1,475
|
|
|
|
|
(1,476)
|
|
|
|
|
|
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (in units/shares) |
11,749
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11,749
|
|
|
|
|
|
|
| Share-based compensation issuance, net of redemptions (COPT: 4,254 and 11,749 shares for the three months ended September 30, 2018 and 2019 and 141,633 and 100,181 shares issued, net of redemptions for the nine months ended September 30, 2018 and 2019, respectively) |
$ 1,895
|
|
|
1
|
|
|
1,525
|
|
|
|
|
369
|
1,895
|
|
|
$ 1,895
|
|
|
|
|
|
|
| Redemption of vested equity awards |
(53)
|
|
|
|
|
|
(53)
|
|
|
|
|
|
(53)
|
|
|
(53)
|
|
|
|
|
|
|
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP |
0
|
|
|
|
|
|
312
|
|
|
|
|
(312)
|
|
|
|
|
|
|
|
|
|
|
| Comprehensive income |
10,707
|
|
|
|
|
|
|
|
|
21,257
|
(11,115)
|
565
|
10,707
|
|
|
21,524
|
|
|
(11,253)
|
279
|
|
$ 157
|
| Dividends/Distributions |
(30,825)
|
|
|
|
|
|
|
|
|
(30,825)
|
|
|
(31,342)
|
|
|
(31,185)
|
|
|
|
|
|
$ (157)
|
| Distributions to owners of common and preferred units in COPLP |
(517)
|
|
|
|
|
|
|
|
|
|
|
(517)
|
|
|
|
|
|
|
|
|
|
|
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries |
(5,878)
|
|
|
|
|
|
|
|
|
|
|
(5,878)
|
(5,878)
|
|
|
|
|
|
|
(5,878)
|
|
|
| Adjustment to arrive at fair value of redeemable noncontrolling interests |
$ 1,531
|
|
|
|
|
|
1,531
|
|
|
|
|
|
1,531
|
|
|
$ 1,531
|
|
|
|
|
|
|
| Balance (in units/shares) at Sep. 30, 2019 |
112,059,175
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
113,543,600
|
|
|
|
|
1,484,425
|
|
| Balance (preferred units) at Sep. 30, 2019 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
352,000
|
352,000
|
| Balance (COPT: 108,848,223 and 112,059,175 shares as of September 30, 2018 and 2019, respectively) at Sep. 30, 2019 |
$ 1,695,947
|
|
|
$ 1,121
|
|
|
$ 2,480,083
|
|
|
$ (790,235)
|
$ (34,580)
|
$ 39,558
|
$ 1,695,947
|
|
|
$ 1,710,600
|
|
|
$ (34,891)
|
$ 11,438
|
|
$ 8,800
|