COPT Defense Properties Annual report pursuant to Section 13 and 15(d)

Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details)

v3.25.0.1

Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details) $ in Thousands	Dec. 31, 2024 USD ($) property	Dec. 31, 2023 USD ($)	Jan. 10, 2023	Dec. 14, 2022
Unconsolidated Real Estate Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of Properties \| property	24
Carrying Value of Investment	$ 35,951	$ 38,275
Unconsolidated Real Estate Joint Ventures \| Investment in unconsolidated real estate joint ventures
Schedule of Equity Method Investments [Line Items]
Carrying Value of Investment	39,400	41,100
Unconsolidated Real Estate Joint Ventures \| Other liabilities
Schedule of Equity Method Investments [Line Items]
Carrying Value of Investment	$ (3,400)	(2,800)
Redshift
Schedule of Equity Method Investments [Line Items]
Nominal Ownership %	10.00%		10.00%
Number of Properties \| property	3
Carrying Value of Investment	$ 20,921	21,053
BREIT COPT DC JV LLC
Schedule of Equity Method Investments [Line Items]
Nominal Ownership %	10.00%
Number of Properties \| property	9
Carrying Value of Investment	$ 9,584	10,629
Quark
Schedule of Equity Method Investments [Line Items]
Nominal Ownership %	10.00%			10.00%
Number of Properties \| property	2
Carrying Value of Investment	$ 6,706	6,727
B RE COPT DC JV III LLC
Schedule of Equity Method Investments [Line Items]
Nominal Ownership %	10.00%
Number of Properties \| property	2
Carrying Value of Investment	$ 2,149	2,643
B RE COPT DC JV II LLC
Schedule of Equity Method Investments [Line Items]
Nominal Ownership %	10.00%
Number of Properties \| property	8
Carrying Value of Investment	$ (3,409)	(2,777)
Difference between the joint venture's lower cost basis and the entity's share of underlying equity in the net assets	$ 6,700	$ 6,800

- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

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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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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

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

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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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