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Investments in and Advances to Unconsolidated Joint Ventures (Tables) | 9 Months Ended
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Sep. 30, 2023
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Equity Method Investments | The Company owns interests in the following entities that are accounted for under the equity method (dollars in thousands):
|  |  |  |  |  |  | Carrying Amount
|  |  |  |  |  |  |  | September 30, |  | December 31,
Entity(1) |  | Segment |  | Property Count(2) |  | Ownership %(2) |  | 2023 |  | 2022
South San Francisco JVs(3) |  | Lab |  | 7 |  | 70 |  | $ | 357,209 |  |  | $ | 309,969 |
SWF SH JV |  | Other |  | 19 |  | 54 |  | 333,980 |  |  | 345,978 |
Lab JV |  | Lab |  | 1 |  | 49 |  | 30,483 |  |  | 26,601 |
Needham Land Parcel JV(4) |  | Lab |  | — |  | 38 |  | 15,733 |  |  | 15,391 |
Outpatient Medical JVs(5) |  | Outpatient medical |  | 2 |  | 20 - 67 |  | 7,976 |  |  | 8,738 |
|  |  |  |  |  |  |  | $ | 745,381 |  |  | $ | 706,677 |
_______________________________________ (1)These entities are not consolidated because the Company does not control, through voting rights or other means, the joint ventures. (2)Property counts and ownership percentages are as of September 30, 2023. (3)Includes seven unconsolidated lab joint ventures in South San Francisco, California in which the Company holds a 70% ownership percentage in each joint venture. These joint ventures have been aggregated herein due to similarity of the investments and operations. See “South San Francisco JVs” below for further information. (4)Land held for development is excluded from the property count as of September 30, 2023. (5)Includes two unconsolidated outpatient medical joint ventures in which the Company holds an ownership percentage as follows: (i) Ventures IV (20%) and (ii) Suburban Properties, LLC (67%). As of December 31, 2022, these joint ventures held a total of three properties. In April 2023, the Company acquired the remaining 80% interest in one of the two properties in the Ventures IV unconsolidated joint venture for $4 million (see Note 3). These joint ventures have been aggregated herein due to similarity of the investments and operations.

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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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