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Real Estate and Other Investments - Impairment Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) property	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) property	Sep. 30, 2024 USD ($)	Nov. 03, 2025 property
Real Estate
Impairment of assets | $	$ 93,243	$ 23,031	$ 162,708	$ 41,718
Number of properties owned (property)	335		335
Disposed of by sale
Real Estate
Number of properties owned (property)	32		32
Held for sale
Real Estate
Number of properties owned (property)	50		50
Held for sale | Subsequent Event
Real Estate
Number of properties owned (property)					38
Medical Office Building and Life Science Building
Real Estate
Impairment of assets | $			$ 109,597
Number of properties impaired	18		18
Medical Office Building and Life Science Building | Disposed of by sale
Real Estate
Number of properties owned (property)	5		5
Medical Office Building and Life Science Building | Held for sale
Real Estate
Number of properties owned (property)	13		13
Senior Living Communities | Disposed of by sale
Real Estate
Number of properties owned (property)	1		1
Senior Living Communities | Held for sale
Real Estate
Impairment of assets | $			$ 53,111
Number of properties impaired	25		25
Number of properties owned (property)	24		24

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