Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Earnings Per Share ("EPS") and Earnings Per Unit ("EPU") (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Numerator:        
Net income attributable to COPT/COPLP $ 19,434 $ 17,526 $ 36,584 $ 38,545
'Preferred share/unit dividends/distributions 0 (3,039) 0 (6,219)
Issuance costs associated with redeemed preferred shares/units 0 (6,847) 0 (6,847)
Income attributable to share-based compensation awards (117) (117) (234) (242)
Numerator for basic and diluted EPS on net income attributable to COPT/COPLP common share/unit holders $ 19,317 $ 7,523 $ 36,350 $ 25,237
Denominator (all weighted averages):        
Denominator for basic EPS/EPU (common shares/units) 101,789 99,036 101,397 98,725
Dilutive effect of share-based compensation awards (shares) 119 160 131 158
Denominator for diluted EPS/EPU (common shares/units) 101,908 99,196 101,528 98,883
Basic EPS:        
Net income attributable to COPT/COPLP common shareholders - basic (in dollars per share/unit) $ 0.19 $ 0.08 $ 0.36 $ 0.26
Diluted EPS:        
Net income attributable to COPT/COPLP common shareholders - diluted (in dollars per share/unit) $ 0.19 $ 0.08 $ 0.36 $ 0.26
Corporate Office Properties, L.P.        
Numerator:        
Net income attributable to COPT/COPLP $ 20,207 $ 17,952 $ 38,066 $ 39,758
'Preferred share/unit dividends/distributions (165) (3,204) (330) (6,549)
Issuance costs associated with redeemed preferred shares/units 0 (6,847) 0 (6,847)
Income attributable to share-based compensation awards (117) (117) (234) (242)
Numerator for basic and diluted EPS on net income attributable to COPT/COPLP common share/unit holders $ 19,925 $ 7,784 $ 37,502 $ 26,120
Denominator (all weighted averages):        
Denominator for basic EPS/EPU (common shares/units) 104,986 102,441 104,605 102,150
Dilutive effect of share-based compensation awards (shares) 119 160 131 158
Denominator for diluted EPS/EPU (common shares/units) 105,105 102,601 104,736 102,308
Basic EPS:        
Net income attributable to COPT/COPLP common shareholders - basic (in dollars per share/unit) $ 0.19 $ 0.08 $ 0.36 $ 0.26
Diluted EPS:        
Net income attributable to COPT/COPLP common shareholders - diluted (in dollars per share/unit) $ 0.19 $ 0.08 $ 0.36 $ 0.26