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Real Estate and Other Investments - Equity Method Investment in AlerisLife (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Real Estate
Equity method investment	$ 24,905		$ 24,905		$ 0
Equity in net (losses) earnings of investees	(12,307)	$ 2,929	(10,409)	$ 2,282
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	$ 24,905		$ 24,905
Equity in net (losses) earnings of investees	8,834		8,945
AlerisLife Inc \| Equity Method Investments
Real Estate
Amortization	$ 352		$ 526