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Dispositions of Real Estate (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 30, 2024 USD ($) property | Jul. 31, 2024 USD ($) property | Sep. 30, 2025 USD ($) property | Jun. 30, 2025 USD ($) property | Sep. 30, 2024 USD ($) property | Jun. 30, 2024 USD ($) property | Mar. 31, 2024 USD ($) property | Sep. 30, 2025 USD ($) property | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Gain (loss) on sales of real estate, net |  |  | $ 11,500,000 |  | $ 62,325,000 |  |  | $ 13,136,000 | $ 187,624,000 |
Assets held for sale, net |  |  | 67,593,000 |  |  |  |  | 67,593,000 |  | $ 7,840,000
Impairment of real estate |  |  | $ 0 |  | $ 0 |  |  | 0 | $ 0 |
Land Parcel |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  |  |  | 1 |  | 11 |  |  |  |
Proceeds from sale of property |  |  |  | $ 4,000,000 |  |  |  |  |  |
Gain (loss) on sales of real estate, net |  |  |  | $ 3,000,000 |  |  |  |  |  |
Outpatient Medical Buildings and Lab Buildings |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Gain (loss) on sales of real estate, net |  |  |  |  |  | $ 122,000,000 |  |  |  |
Outpatient Medical Buildings |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  | 59 | 2 |  | 59 |  | 2 |  |  |
Proceeds from sale of property |  | $ 674,000,000 | $ 27,000,000 |  | $ 674,000,000 | $ 179,000,000 | $ 29,000,000 |  |  |
Gain (loss) on sales of real estate, net |  |  | 12,000,000 |  | 60,000,000 |  | $ 3,000,000 |  |  |
Investments in loans receivable |  | $ 405,000,000 |  |  | $ 405,000,000 |  |  |  |  |
Lab Buildings |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  |  |  |  |  | 7 |  |  |  |
Proceeds from sale of property |  |  |  |  |  | $ 180,000,000 |  |  |  |
One Outpatient Medical Buildings |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  |  |  |  |  |  |  |  |  | 1
Proceeds from sale of property |  |  |  |  |  |  |  |  |  | $ 12,000,000
Two Outpatient Medical Buildings |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties sold | property | 2 |  |  |  |  |  |  |  |  | 2
Proceeds from sale of property | $ 23,000,000 |  |  |  |  |  |  |  |  | $ 23,000,000
Investments in loans receivable | $ 14,000,000 |  |  |  |  |  |  |  |  | 14,000,000
CCRC |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from sale of property |  |  |  |  |  |  |  |  |  | 12,000,000
Held-for-sale |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Assets held for sale, net |  |  | 68,000,000 |  |  |  |  | 68,000,000 |  | 8,000,000
Liabilities related to assets held for sale, net |  |  | $ 12,000,000 |  |  |  |  | $ 12,000,000 |  | $ 0
Held-for-sale | Outpatient Medical Buildings |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties classified as held for sale | property |  |  |  |  |  |  |  |  |  | 1
Held-for-sale | Lab Buildings |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties classified as held for sale | property |  |  | 6 |  |  |  |  | 6 |  |

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