Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share ("EPS") and Earnings Per Unit ("EPU") (Details 2)

v3.3.0.814
Earnings Per Share ("EPS") and Earnings Per Unit ("EPU") (Details 2) - shares
shares in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Conversion of common units        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 3,679 3,876 0 3,915
Conversion of Series I Preferred Units        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 176 176 176 176
Conversion of Series K Preferred Shares        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 0 434 434 434
Weighted average restricted stock and deferred shares        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 411 401 412 404
Weighted average options        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 440 490 480 495
Corporate Office Properties, L.P. | Weighted average restricted stock and deferred shares        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 411 401 412 404
Corporate Office Properties, L.P. | Weighted average options        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 440 490 480 495
Corporate Office Properties, L.P. | Conversion of Series I preferred units        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 176 176 176 176
Corporate Office Properties, L.P. | Conversion of Series K preferred units        
Antidilutive securities        
Antidilutive securities excluded from computation of diluted earnings per share (in shares) 0 434 434 434