Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.8.0.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Allowance for doubtful accounts - AR $ 742 $ 607
Deferred rent receivable 375 364
Deferred leasing costs, accumulated amortization $ 29,435 $ 29,560
Common Shares of beneficial interest, par value (in dollars per share) $ 0.01 $ 0.01
Common Shares of beneficial interest, shares authorized 150,000,000 150,000,000
Common Shares of beneficial interest, shares issued 102,150,358 101,292,299
Common Shares of beneficial interest, shares outstanding 102,150,358 101,292,299
Corporate Office Properties, L.P.    
Allowance for doubtful accounts - AR $ 742 $ 607
Deferred rent receivable 375 364
Deferred leasing costs, accumulated amortization $ 29,435 $ 29,560
Corporate Office Properties, L.P. | General Partner    
Common Shares of beneficial interest, shares outstanding 102,150,358 101,292,299
Corporate Office Properties, L.P. | Limited Partner    
Common Shares of beneficial interest, shares outstanding 3,197,061 3,250,878
Preferred Units, Outstanding 352,000 352,000