COPT Defense Properties Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Equity (Details)

v3.19.1

Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Class of Stock [Line Items]
Conversion of common units to common shares (in units/shares)	5,500	53,817
Dividends declared per share (in usd per share)	$ 0.2750	$ 0.275
Common Shares \| Forward Equity Sale Agreement
Class of Stock [Line Items]
Number of shares issued	1,600,000
Proceeds from common shares issued under forward equity sale agreements	$ 46.5
Remaining capacity under program	0
Common Shares \| 2018 Common Stock Issued to Public Under At-the-Market Program
Class of Stock [Line Items]
Aggregate gross sales price	$ 300.0
Corporate Office Properties, L.P.
Class of Stock [Line Items]
Dividends declared per share (in usd per share)	$ 0.275	$ 0.275

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