Annual report pursuant to Section 13 and 15(d)

Earnings Per Share ("EPS") and Earnings Per Unit (???EPU???) (Basic and Diluted Calculation) (Details)

v3.20.4
Earnings Per Share ("EPS") and Earnings Per Unit (“EPU”) (Basic and Diluted Calculation) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Numerator:      
Net income attributable to COPT/COPLP $ 97,374 $ 191,692 $ 72,301
Income attributable to share-based compensation awards (431) (656) (462)
Numerator for basic EPS/EPU on net income attributable to COPT/COPLP common share/unitholders 96,943 191,036 71,839
Redeemable noncontrolling interests 0 132 0
Income attributable to share-based compensation awards 27 33 0
Numerator for diluted EPS/EPU on net income attributable to COPT/COPLP common share/unitholders $ 96,970 $ 191,201 $ 71,839
Denominator (all weighted averages):      
Denominator for basic EPS/EPU (common shares/units) 111,788 111,196 103,946
Dilutive effect of redeemable noncontrolling interests (common shares/units) 0 119 0
Dilutive effect of share-based compensation awards (common shares/units) 288 308 134
Dilutive effect of forward equity sale agreements (common shares/units) 0 0 45
Denominator for diluted EPS/EPU (common shares/units) 112,076 111,623 104,125
Basic EPS/EPU (in dollars per share) [1] $ 0.87 $ 1.72 $ 0.69
Diluted EPS/EPU (in dollars per share) [1] $ 0.87 $ 1.71 $ 0.69
Corporate Office Properties, L.P      
Numerator:      
Net income attributable to COPT/COPLP $ 98,854 $ 194,619 $ 74,703
Preferred share/ unit dividends/ distributions (300) (564) (660)
Income attributable to share-based compensation awards (511) (785) (462)
Numerator for basic EPS/EPU on net income attributable to COPT/COPLP common share/unitholders 98,043 193,270 73,581
Redeemable noncontrolling interests 0 132 0
Income attributable to share-based compensation awards 0 33 0
Numerator for diluted EPS/EPU on net income attributable to COPT/COPLP common share/unitholders $ 98,043 $ 193,435 $ 73,581
Denominator (all weighted averages):      
Denominator for basic EPS/EPU (common shares/units) 113,024 112,495 106,414
Dilutive effect of redeemable noncontrolling interests (common shares/units) 0 119 0
Dilutive effect of share-based compensation awards (common shares/units) 288 308 134
Dilutive effect of forward equity sale agreements (common shares/units) 0 0 45
Denominator for diluted EPS/EPU (common shares/units) 113,312 112,922 106,593
Basic EPS/EPU (in dollars per share) [2] $ 0.87 $ 1.72 $ 0.69
Diluted EPS/EPU (in dollars per share) [2] $ 0.87 $ 1.71 $ 0.69
[1] Basic and diluted earnings per common share are calculated based on amounts attributable to common shareholders of Corporate Office Properties Trust.
[2] Basic and diluted earnings per common unit are calculated based on amounts attributable to common unitholders of Corporate Office Properties, L.P.