Consolidated Statements of Equity - USD ($) $ in Thousands |
Total |
Forward Equity Sale Agreement |
Common Shares |
Common Shares
Forward Equity Sale Agreement
|
Additional Paid-in Capital |
Additional Paid-in Capital
Forward Equity Sale Agreement
|
Cumulative Distributions in Excess of Net Income |
Accumulated Other Comprehensive Loss |
Noncontrolling Interests |
Corporate Office Properties, L.P. |
Corporate Office Properties, L.P.
Forward Equity Sale Agreement
|
Corporate Office Properties, L.P.
Common Shares
|
Corporate Office Properties, L.P.
Common Shares
Forward Equity Sale Agreement
|
Corporate Office Properties, L.P.
Accumulated Other Comprehensive Loss
|
Corporate Office Properties, L.P.
Noncontrolling Interests
|
Corporate Office Properties, L.P.
Limited Partner
|
Corporate Office Properties, L.P.
Limited Partner
Preferred Shares
|
Cumulative Effect, Period Of Adoption, Adjustment |
Cumulative Effect, Period Of Adoption, Adjustment
Cumulative Distributions in Excess of Net Income
|
Cumulative Effect, Period Of Adoption, Adjustment
Corporate Office Properties, L.P.
|
Cumulative Effect, Period Of Adoption, Adjustment
Corporate Office Properties, L.P.
Common Shares
|
Cumulative Effect, Period of Adoption, Adjusted Balance |
Cumulative Effect, Period of Adoption, Adjusted Balance
Common Shares
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Additional Paid-in Capital
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Cumulative Distributions in Excess of Net Income
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Accumulated Other Comprehensive Loss
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Noncontrolling Interests
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Corporate Office Properties, L.P.
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Corporate Office Properties, L.P.
Common Shares
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Corporate Office Properties, L.P.
Accumulated Other Comprehensive Loss
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Corporate Office Properties, L.P.
Noncontrolling Interests
|
Cumulative Effect, Period of Adoption, Adjusted Balance
Corporate Office Properties, L.P.
Limited Partner
Preferred Shares
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance, preferred units (in share/units) at Dec. 31, 2018 | 352,000 | |||||||||||||||||||||||||||||||
| Balance 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 (in units/ shares) at Dec. 31, 2018 | 110,241,868 | 111,574,754 | ||||||||||||||||||||||||||||||
| Increase (Decrease) in Shareholders' Equity | ||||||||||||||||||||||||||||||||
| Conversion of common units to common shares | $ 0 | 80 | (80) | |||||||||||||||||||||||||||||
| Redemption of common units (in units) | (44) | |||||||||||||||||||||||||||||||
| Redemption of common units | (1) | (1) | (1) | $ (1) | ||||||||||||||||||||||||||||
| Redemption of vested equity awards | $ (1,920) | (1,920) | (1,920) | $ (1,920) | ||||||||||||||||||||||||||||
| Issuance of common units resulting from common shares issued under COPT forward equity sale agreements (in units) | 1,614,087 | 1,614,087 | ||||||||||||||||||||||||||||||
| Common shares issued under sale agreements and programs | $ 46,454 | $ 16 | $ 46,438 | $ 46,454 | $ 46,454 | |||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions (in units) | 88,432 | 343,934 | ||||||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions | $ 3,635 | 1 | 3,049 | 585 | 3,635 | $ 3,635 | ||||||||||||||||||||||||||
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP | 0 | (834) | 834 | |||||||||||||||||||||||||||||
| Comprehensive income | 106,820 | 127,650 | (23,227) | 2,397 | 106,820 | 129,246 | (23,517) | 761 | 330 | |||||||||||||||||||||||
| Dividends/Distributions | (61,509) | (61,509) | (62,612) | (62,282) | $ (330) | |||||||||||||||||||||||||||
| Distributions to owners of common and preferred units in COPLP | (1,103) | (1,103) | ||||||||||||||||||||||||||||||
| Contributions from noncontrolling interests in other consolidated entities | 2,570 | 2,570 | 2,570 | 2,570 | ||||||||||||||||||||||||||||
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries | (8) | (8) | (8) | (8) | ||||||||||||||||||||||||||||
| Adjustment to arrive at fair value of redeemable noncontrolling interests | $ (2,875) | (2,875) | (2,875) | $ (2,875) | ||||||||||||||||||||||||||||
| Balance, preferred units (in shares/units) at Jun. 30, 2019 | 352,000 | |||||||||||||||||||||||||||||||
| Balance (in units/ shares) at Jun. 30, 2019 | 111,949,887 | 113,532,731 | ||||||||||||||||||||||||||||||
| Balance 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 (in share/units) at Mar. 31, 2019 | 352,000 | |||||||||||||||||||||||||||||||
| Balance at Mar. 31, 2019 | $ 1,656,178 | 1,119 | 2,475,497 | (856,703) | (9,538) | 45,803 | 1,656,178 | $ 1,640,272 | (9,536) | 16,642 | $ 8,800 | |||||||||||||||||||||
| Balance (in units/ shares) at Mar. 31, 2019 | 111,939,790 | 113,515,814 | ||||||||||||||||||||||||||||||
| Increase (Decrease) in Shareholders' Equity | ||||||||||||||||||||||||||||||||
| Redemption of common units (in units) | (44) | |||||||||||||||||||||||||||||||
| Redemption of common units | $ (1) | (1) | (1) | $ (1) | ||||||||||||||||||||||||||||
| Redemption of vested equity awards | $ (103) | (103) | (103) | $ (103) | ||||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions (in units) | 10,097 | 16,961 | ||||||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions | $ 1,833 | 1,487 | 346 | 1,833 | $ 1,833 | |||||||||||||||||||||||||||
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP | 0 | 488 | (488) | |||||||||||||||||||||||||||||
| Comprehensive income | 94,592 | 106,791 | (13,927) | 1,728 | 94,592 | 108,130 | (14,102) | 399 | 165 | |||||||||||||||||||||||
| Dividends/Distributions | (30,755) | (30,755) | (31,308) | (31,143) | $ (165) | |||||||||||||||||||||||||||
| Distributions to owners of common and preferred units in COPLP | (553) | (553) | ||||||||||||||||||||||||||||||
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries | (4) | (4) | (4) | (4) | ||||||||||||||||||||||||||||
| Adjustment to arrive at fair value of redeemable noncontrolling interests | $ (2,076) | (2,076) | (2,076) | $ (2,076) | ||||||||||||||||||||||||||||
| Balance, preferred units (in shares/units) at Jun. 30, 2019 | 352,000 | |||||||||||||||||||||||||||||||
| Balance (in units/ shares) at Jun. 30, 2019 | 111,949,887 | 113,532,731 | ||||||||||||||||||||||||||||||
| Balance 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 (in share/units) at Dec. 31, 2019 | 352,000 | 352,000 | 352,000 | |||||||||||||||||||||||||||||
| Balance at Dec. 31, 2019 | $ 1,719,245 | 1,121 | 2,481,558 | (778,275) | (25,444) | 40,285 | 1,719,245 | $ 1,724,159 | (25,648) | 11,934 | $ 8,800 | $ (5,541) | $ (5,541) | $ (5,541) | $ (5,541) | $ 1,713,704 | $ 1,121 | $ 2,481,558 | $ (783,816) | $ (25,444) | $ 40,285 | $ 1,713,704 | $ 1,718,618 | $ (25,648) | $ 11,934 | $ 8,800 | ||||||
| Balance (in units/ shares) at Dec. 31, 2019 | 112,068,705 | 113,551,130 | 1,482,425 | 113,551,130 | ||||||||||||||||||||||||||||
| Increase (Decrease) in Shareholders' Equity | ||||||||||||||||||||||||||||||||
| Conversion of common units to common shares | $ 0 | 182 | (182) | |||||||||||||||||||||||||||||
| Redemption of vested equity awards | $ (1,572) | (1,572) | (1,572) | $ (1,572) | ||||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions (in units) | 102,478 | 260,483 | ||||||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions | $ 2,946 | 1 | 2,171 | 774 | 2,946 | $ 2,946 | ||||||||||||||||||||||||||
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP | 0 | (25) | 25 | |||||||||||||||||||||||||||||
| Comprehensive income | 8,642 | 47,551 | (39,069) | 160 | 8,642 | 48,122 | (39,535) | (99) | 154 | |||||||||||||||||||||||
| Dividends/Distributions | (61,694) | (61,694) | (62,556) | (62,402) | $ (154) | |||||||||||||||||||||||||||
| Distributions to owners of common and preferred units in COPLP | (862) | (862) | ||||||||||||||||||||||||||||||
| Contributions from noncontrolling interests in other consolidated entities | 112 | 112 | 112 | 112 | ||||||||||||||||||||||||||||
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries | (15) | (15) | (15) | (15) | ||||||||||||||||||||||||||||
| Adjustment to arrive at fair value of redeemable noncontrolling interests | $ (4,337) | (4,337) | (4,337) | $ (4,337) | ||||||||||||||||||||||||||||
| Balance, preferred units (in shares/units) at Jun. 30, 2020 | 352,000 | 352,000 | ||||||||||||||||||||||||||||||
| Balance (in units/ shares) at Jun. 30, 2020 | 112,183,192 | 113,811,613 | 1,628,421 | |||||||||||||||||||||||||||||
| Balance at Jun. 30, 2020 | $ 1,656,924 | 1,122 | 2,477,977 | (797,959) | (64,513) | 40,297 | 1,656,924 | $ 1,701,375 | (65,183) | 11,932 | $ 8,800 | |||||||||||||||||||||
| Balance, preferred units (in share/units) at Mar. 31, 2020 | 352,000 | |||||||||||||||||||||||||||||||
| Balance at Mar. 31, 2020 | $ 1,665,186 | 1,122 | 2,476,677 | (790,600) | (62,201) | 40,188 | 1,665,186 | $ 1,707,395 | (62,843) | 11,834 | $ 8,800 | |||||||||||||||||||||
| Balance (in units/ shares) at Mar. 31, 2020 | 112,169,463 | 113,789,912 | ||||||||||||||||||||||||||||||
| Increase (Decrease) in Shareholders' Equity | ||||||||||||||||||||||||||||||||
| Redemption of vested equity awards | $ (80) | (80) | (80) | $ (80) | ||||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions (in units) | 13,729 | 21,701 | ||||||||||||||||||||||||||||||
| Share-based compensation issuance, net of redemptions | $ 1,736 | 1,188 | 548 | 1,736 | $ 1,736 | |||||||||||||||||||||||||||
| Adjustments to noncontrolling interests resulting from changes in ownership of COPLP | 0 | 428 | (428) | |||||||||||||||||||||||||||||
| Comprehensive income | 21,624 | 23,497 | (2,312) | 439 | 21,624 | 23,781 | (2,340) | 106 | 77 | |||||||||||||||||||||||
| Dividends/Distributions | (30,856) | (30,856) | (31,298) | (31,221) | $ (77) | |||||||||||||||||||||||||||
| Distributions to owners of common and preferred units in COPLP | (442) | (442) | ||||||||||||||||||||||||||||||
| Distributions to noncontrolling interests in other consolidated entities/subsidiaries | (8) | (8) | (8) | (8) | ||||||||||||||||||||||||||||
| Adjustment to arrive at fair value of redeemable noncontrolling interests | $ (236) | (236) | (236) | $ (236) | ||||||||||||||||||||||||||||
| Balance, preferred units (in shares/units) at Jun. 30, 2020 | 352,000 | 352,000 | ||||||||||||||||||||||||||||||
| Balance (in units/ shares) at Jun. 30, 2020 | 112,183,192 | 113,811,613 | 1,628,421 | |||||||||||||||||||||||||||||
| Balance at Jun. 30, 2020 | $ 1,656,924 | $ 1,122 | $ 2,477,977 | $ (797,959) | $ (64,513) | $ 40,297 | $ 1,656,924 | $ 1,701,375 | $ (65,183) | $ 11,932 | $ 8,800 |