The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The book value of investments in real estate joint ventures including direct and indirect investments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Investments in Unconsolidated Entities - Summary of Investments in Unconsolidated Entities (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 1,787,398	$ 1,768,772
Non-segment/Corporate
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	73,256	71,109
Seniors Housing Operating
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 1,453,611	1,412,708
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	95.00%
Triple-net
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 30,242	35,066
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	25.00%
Outpatient Medical
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 230,289	$ 249,889
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%
Non-segment/Corporate \| Minimum
Schedule of Equity Method Investments [Line Items]
Percentage ownership	32.00%
Non-segment/Corporate \| Maximum
Schedule of Equity Method Investments [Line Items]
Percentage ownership	88.00%