Consolidated Statements of Equity - USD ($) $ in Thousands |
Total |
Common Stock Issued to Public Under At-the-Market Program |
Forward Equity Sale Agreement |
Preferred Shares |
Common Shares |
Common Shares
Common Stock Issued to Public Under At-the-Market Program
|
Common Shares
Forward Equity Sale Agreement
|
Additional Paid-in Capital |
Additional Paid-in Capital
Common Stock Issued to Public Under At-the-Market Program
|
Additional Paid-in Capital
Forward Equity Sale Agreement
|
Cumulative Distributions in Excess of Net Income |
Accumulated Other Comprehensive Income (Loss) |
Noncontrolling Interests |
Corporate Office Properties, L.P. |
Corporate Office Properties, L.P.
Common Stock Issued to Public Under At-the-Market Program
|
Corporate Office Properties, L.P.
Forward Equity Sale Agreement
|
Corporate Office Properties, L.P.
Common Shares
|
Corporate Office Properties, L.P.
Common Shares
Common Stock Issued to Public Under At-the-Market Program
|
Corporate Office Properties, L.P.
Common Shares
Forward Equity Sale Agreement
|
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
|
Corporate Office Properties, L.P.
General Partner
|
Corporate Office Properties, L.P.
General Partner
Preferred Shares
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Balance (COPT: 98,498,651 and 101,292,299 shares as of December 31, 2016 and 2017, respectively) at Dec. 31, 2016 | $ 1,612,777 | $ 172,500 | $ 985 | $ 2,116,581 | $ (747,825) | $ (1,731) | $ 72,267 | $ 1,612,777 | $ 1,419,710 | $ (1,854) | $ 13,621 | $ 8,800 | $ 172,500 | ||||||||||||
Balance (preferred units) at Dec. 31, 2016 | 352,000 | 6,900,000 | |||||||||||||||||||||||
Balance (in units/shares) at Dec. 31, 2016 | 98,498,651 | 102,089,042 | |||||||||||||||||||||||
Increase (Decrease) in Shareholders' Equity | |||||||||||||||||||||||||
Conversion of common units to common shares (COPT: 185,000 and 53,817 shares as for the three months ended March 31, 2017 and 2018, respectively) | $ 0 | 2 | 2,535 | (2,537) | |||||||||||||||||||||
Common shares issued during the period | $ 18,222 | $ 5 | $ 18,217 | $ 18,222 | $ 18,222 | ||||||||||||||||||||
Common shares issued during the period (in shares) | 546,782 | ||||||||||||||||||||||||
Share-based compensation issuance, net of redemptions (in units/shares) | 159,801 | 159,801 | |||||||||||||||||||||||
Share-based compensation issuance, net of redemptions (COPT: 159,801 and 127,242 shares issued, net of redemptions for the three months ended March 31, 2017 and 2018, respectively) | $ 1,582 | 2 | 1,580 | 1,582 | $ 1,582 | ||||||||||||||||||||
Redemption of vested equity awards | (1,753) | (1,753) | (1,753) | (1,753) | |||||||||||||||||||||
Adjustments to noncontrolling interests resulting from changes in ownership of COPLP | 0 | (246) | 246 | ||||||||||||||||||||||
Comprehensive income | 23,581 | 21,019 | 1,361 | 1,201 | 23,581 | 18,461 | 1,408 | 367 | $ 165 | $ 3,180 | |||||||||||||||
Dividends / Distributions to owners of common and preferred units | (30,524) | (30,524) | (31,625) | (28,280) | $ (165) | $ (3,180) | |||||||||||||||||||
Distributions to owners of common and preferred units in COPLP | (1,101) | (1,101) | |||||||||||||||||||||||
Distributions to noncontrolling interests in subsidiaries | (2,606) | (2,606) | (2,606) | (2,606) | |||||||||||||||||||||
Adjustment to arrive at fair value of redeemable noncontrolling interests | $ (545) | (545) | (545) | $ (545) | |||||||||||||||||||||
Balance (in units/shares) at Mar. 31, 2017 | 99,390,234 | 102,795,625 | |||||||||||||||||||||||
Balance (preferred units) at Mar. 31, 2017 | 352,000 | 6,900,000 | |||||||||||||||||||||||
Balance (COPT: 99,390,234 shares and 102,150,358 shares as of March 31, 2017 and 2018, respectively) at Mar. 31, 2017 | $ 1,619,633 | 172,500 | 994 | 2,136,369 | (757,330) | (370) | 67,470 | 1,619,633 | $ 1,427,397 | (446) | 11,382 | $ 8,800 | $ 172,500 | ||||||||||||
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 | 0 | 1,013 | 2,201,047 | (802,361) | 2,443 | 66,165 | 1,468,307 | 1,444,746 | 2,449 | 12,312 | 8,800 | 0 | ||||||||||||
Balance (COPT: 98,498,651 and 101,292,299 shares as of December 31, 2016 and 2017, respectively) at Dec. 31, 2017 | $ 1,468,307 | 0 | 1,013 | 2,201,047 | (802,085) | 2,167 | 66,165 | 1,468,307 | $ 1,445,022 | 2,173 | 12,312 | $ 8,800 | $ 0 | ||||||||||||
Balance (preferred units) at Dec. 31, 2017 | 352,000 | 352,000 | 0 | ||||||||||||||||||||||
Balance (in units/shares) at Dec. 31, 2017 | 101,292,299 | 104,543,177 | 3,250,878 | 101,292,299 | |||||||||||||||||||||
Increase (Decrease) in Shareholders' Equity | |||||||||||||||||||||||||
Conversion of common units to common shares (COPT: 185,000 and 53,817 shares as for the three months ended March 31, 2017 and 2018, respectively) | $ 0 | 1 | 760 | (761) | |||||||||||||||||||||
Common shares issued during the period | $ 19,976 | $ 7 | $ 19,969 | $ 19,976 | $ 19,976 | ||||||||||||||||||||
Common shares issued during the period (in shares) | 677,000 | 677,000 | |||||||||||||||||||||||
Share-based compensation issuance, net of redemptions (in units/shares) | 127,242 | 127,242 | |||||||||||||||||||||||
Share-based compensation issuance, net of redemptions (COPT: 159,801 and 127,242 shares issued, net of redemptions for the three months ended March 31, 2017 and 2018, respectively) | $ 1,680 | 1 | 1,679 | 1,680 | $ 1,680 | ||||||||||||||||||||
Redemption of vested equity awards | (1,327) | (1,327) | (1,327) | (1,327) | |||||||||||||||||||||
Adjustments to noncontrolling interests resulting from changes in ownership of COPLP | 0 | (164) | 164 | ||||||||||||||||||||||
Comprehensive income | 23,063 | 17,150 | 4,761 | 1,152 | 23,063 | 17,694 | 4,921 | 283 | $ 165 | $ 0 | |||||||||||||||
Dividends / Distributions to owners of common and preferred units | (28,091) | (28,091) | (29,135) | (28,970) | $ (165) | $ 0 | |||||||||||||||||||
Distributions to owners of common and preferred units in COPLP | (1,044) | (1,044) | |||||||||||||||||||||||
Distributions to noncontrolling interests in subsidiaries | (3) | (3) | (3) | (3) | |||||||||||||||||||||
Adjustment to arrive at fair value of redeemable noncontrolling interests | $ (537) | (537) | (537) | $ (537) | |||||||||||||||||||||
Balance (in units/shares) at Mar. 31, 2018 | 102,150,358 | 105,347,419 | 3,197,061 | 102,150,358 | |||||||||||||||||||||
Balance (preferred units) at Mar. 31, 2018 | 352,000 | 352,000 | 0 | ||||||||||||||||||||||
Balance (COPT: 99,390,234 shares and 102,150,358 shares as of March 31, 2017 and 2018, respectively) at Mar. 31, 2018 | $ 1,482,024 | $ 0 | $ 1,022 | $ 2,221,427 | $ (813,302) | $ 7,204 | $ 65,673 | $ 1,482,024 | $ 1,453,262 | $ 7,370 | $ 12,592 | $ 8,800 | $ 0 |