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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Cover
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details
Uncategorized
- Uncategorized Items - ofc-20210930.htm

Properties, Net - Narrative (Details)

v3.21.2

Properties, Net - Narrative (Details) ft² in Thousands, $ in Millions		9 Months Ended
	Jun. 02, 2021 USD ($) property	Sep. 30, 2021 USD ($) ft² property Property
B RE COPT DC JV III LLC
Real Estate [Line Items]
Nominal Ownership %	10.00%	10.00%
Number of real estate properties		2
Disposed of by sale \| Data Center Shells in Northern Virginia
Real Estate [Line Items]
Ownership percentage sold	90.00%
Number of real estate properties sold	2
Transaction value \| $	$ 118.8
Proceeds from sale \| $	$ 106.9
Gain on sale of ownership interest \| $		$ 40.2
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Data Center Shells
Real Estate [Line Items]
Real estate properties held for sale \| Property		1
Newly developed properties placed in service
Real Estate [Line Items]
Area of real estate property (in sqft or acres) \| ft²		709
Number of real estate properties		6
Properties under development
Real Estate [Line Items]
Area of real estate property (in sqft or acres) \| ft²		1,800
Number of real estate properties		13
Properties under development, partially-operational
Real Estate [Line Items]
Number of real estate properties		3

- Definition

Number of real estate properties held for sale

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- Definition

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- Definition

Area of a real estate property.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The number of real estate properties owned as of the balance sheet date.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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