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Investments in Unconsolidated Entities - Summary of Investments in Unconsolidated Entities (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Schedule of Equity Method Investments [Line Items] |  |
Investments in unconsolidated entities | $ 1,138,526 | $ 1,039,043
Seniors Housing Operating |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in unconsolidated entities | $ 897,769 | 830,647
Seniors Housing Operating | Minimum |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage ownership | 10.00% |
Seniors Housing Operating | Maximum |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage ownership | 65.00% |
Triple-net |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in unconsolidated entities | $ 68,643 | 44,814
Triple-net | Minimum |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage ownership | 10.00% |
Triple-net | Maximum |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage ownership | 88.00% |
Outpatient Medical |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in unconsolidated entities | $ 172,114 | $ 163,582
Outpatient Medical | Minimum |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage ownership | 15.00% |
Outpatient Medical | Maximum |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage ownership | 50.00% |

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