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Real Estate Joint Ventures (Tables) | 9 Months Ended
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Sep. 30, 2025
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Information Related to Investments in Consolidated Real Estate Joint Ventures | The table below sets forth information pertaining to our investments in consolidated real estate joint ventures, which are each variable interest entities (dollars in thousands):
|  |  |  | Nominal Ownership % |  |  |  | September 30, 2025
|  | Date Formed |  |  |  |  | Total Assets |  | Encumbered Assets |  | Total Liabilities |  | Mortgage Debt
Entity |  |  |  | Location |  |  |  |
LW Redstone Company, LLC (1) |  | 3/23/2010 |  | 85% |  | Huntsville, AL |  | $ | 763,461 |  |  | $ | 35,224 |  |  | $ | 82,178 |  |  | $ | 21,950 |
Stevens Investors, LLC |  | 8/11/2015 |  | 95% |  | Washington, DC |  | 139,649 |  |  | — |  |  | 3,171 |  |  | — |
M Square Associates, LLC |  | 6/26/2007 |  | 50% |  | College Park, MD |  | 99,839 |  |  | 54,735 |  |  | 48,715 |  |  | 46,506 |
|  |  |  |  |  |  |  | $ | 1,002,949 |  |  | $ | 89,959 |  |  | $ | 134,064 |  |  | $ | 68,456 |
(1)We fund all capital requirements. Our partner receives distributions of $1.2 million of annual operating cash flows and we receive the remainder.
Schedule of Information Related to Investments in Unconsolidated Real Estate Joint Ventures | The table below sets forth information pertaining to our investments in unconsolidated real estate joint ventures accounted for using the equity method of accounting (dollars in thousands):
|  | Date Formed |  | Nominal Ownership % |  | Number of Properties |  | Carrying Value of Investment (1)
Entity |  |  |  |  | September 30, 2025 |  | December 31, 2024
Redshift JV LLC |  | 1/10/2023 |  | 10% |  | 3 |  |  | $ | 20,804 |  |  | $ | 20,921 |
BREIT COPT DC JV LLC |  | 6/20/2019 |  | 10% |  | 9 |  |  | 8,830 |  |  | 9,584 |
Quark JV LLC |  | 12/14/2022 |  | 10% |  | 2 |  |  | 6,667 |  |  | 6,706 |
B RE COPT DC JV III LLC |  | 6/2/2021 |  | 10% |  | 2 |  |  | (493) |  |  | 2,149 |
B RE COPT DC JV II LLC (2) |  | 10/30/2020 |  | 10% |  | 8 |  |  | (22,057) |  |  | (3,409) |
|  |  |  |  |  | 24 |  |  | $ | 13,751 |  |  | $ | 35,951 |
(1)Included $36.3 million and $39.4 million reported in “investment in unconsolidated real estate joint ventures” and $22.6 million and $3.4 million for investments with deficit balances reported in “other liabilities” on our consolidated balance sheets as of September 30, 2025 and December 31, 2024, respectively. Investments with deficit balances are attributable to JV distributions of nonrecourse debt refinancing proceeds in excess of our equity in B RE COPT DC JV III LLC and B RE COPT DC JV II LLC; we are obligated to fund our share of future cash flow requirements of these joint ventures. (2)Our investment in B RE COPT DC JV II LLC was lower than our share of the joint venture’s equity by $6.5 million as of September 30, 2025 and $6.7 million as of December 31, 2024 due to a difference between our cost basis and our share of the joint venture’s underlying equity in its net assets. We recognize adjustments to our share of the joint venture’s earnings and losses resulting from this basis difference in the underlying assets of the joint venture.

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- Definition Tabular disclosure of information pertaining to investments in consolidated real estate joint ventures. + References No definition available. + Details
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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
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