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Real Estate and Other Investments - Equity Method Investment in AlerisLife (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Real Estate
Equity method investment	$ 23,758		$ 23,758		$ 0
Equity in net earnings (losses) of investees	527	$ (145)	(9,882)	$ 2,137
AlerisLife Inc
Real Estate
Equity method investment, difference between carrying amount and underlying equity	$ 29,500		$ 29,500
AlerisLife Inc
Real Estate
Equity method investment ownership percentage	34.00%		34.00%
Equity method investment	$ 23,758		$ 23,758
Equity in net earnings (losses) of investees	(1,531)		7,414
AlerisLife Inc \| Equity Method Investments
Real Estate
Amortization	$ 351		$ 877