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Investments in and Advances to Unconsolidated Joint Ventures - Schedule of Equity Method Investments (Details) $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2023 USD ($) property | Apr. 28, 2023 USD ($) property | Dec. 31, 2021 USD ($) | Mar. 31, 2024 USD ($) joint_venture property | Dec. 31, 2023 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investments in and advances to unconsolidated joint ventures |  |  |  | $ 930,559 | $ 782,853
Medical Office JVs |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property | 2 |  |  |  |
Number of unconsolidated joint ventures (in joint ventures) | joint_venture |  |  |  | 2 |
HCP Ventures IV, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property | 1 | 1 |  |  |
Investment ownership percentage | 80.00% | 80.00% |  | 20.00% |
Cash paid | $ 4,000 | $ 4,000 |  |  |
Suburban Properties, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investment ownership percentage |  |  |  | 67.00% |
Lab | South San Francisco JVs |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 7 |
Investment ownership percentage |  |  |  | 70.00% |
Equity method investments |  |  |  | $ 420,021 | 393,374
Number of unconsolidated joint ventures (in joint ventures) | joint_venture |  |  |  | 7 |
Lab | Callan Ridge JV |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 2 |
Investment ownership percentage |  |  |  | 35.00% |
Equity method investments |  |  |  | $ 70,122 | 0
Lab | Lab JV |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 1 |
Investment ownership percentage |  |  |  | 49.00% |
Equity method investments |  |  |  | $ 31,734 | 31,761
Lab | Needham Land Parcel JV |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 0 |
Investment ownership percentage |  |  | 38.00% | 38.00% |
Equity method investments |  |  |  | $ 17,131 | 17,084
Cash paid |  |  | $ 13,000 |  |
Other Non-Reporting Segment | SWF SH JV |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 19 |
Investment ownership percentage |  |  |  | 54.00% |
Equity method investments |  |  |  | $ 328,018 | 332,693
Outpatient Medical | PMAK JV |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 59 |
Investment ownership percentage |  |  |  | 12.00% |
Equity method investments |  |  |  | $ 41,740 | 0
Outpatient Medical | Davis JV |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 15 |
Investment ownership percentage |  |  |  | 49.00% |
Equity method investments |  |  |  | $ 14,372 | 0
Outpatient Medical | Medical Office JVs |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Property count | property |  |  |  | 2 |
Equity method investments |  |  |  | $ 7,421 | $ 7,941
Outpatient Medical | Medical Office JVs | Minimum |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investment ownership percentage |  |  |  | 20.00% |
Outpatient Medical | Medical Office JVs | Maximum |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investment ownership percentage |  |  |  | 67.00% |

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