Real Estate and Other Investments - Impairment Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) property	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) property	Sep. 30, 2023 USD ($)
Real Estate
Impairment of assets	$ 23,031	$ 1,156	$ 41,718	$ 18,380
Medical Office and Life Science | Held for sale
Real Estate
Impairment of assets			$ 27,173
Medical Office | Held for sale
Real Estate
Number of properties impaired | property	1		1
Medical Office | Disposed of by sale
Real Estate
Impairment of assets			$ 14,545
Number of properties impaired | property	2		2
Life Sciences Property
Real Estate
Impairment of assets	$ 23,031
Life Sciences Property | Held for sale
Real Estate
Number of properties impaired | property	1		1