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Real Estate and Other Investments - Equity Method Investment in AlerisLife (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Real Estate
Equity method investment	$ 15,740		$ 0
Equity in net earnings (losses) of investees	1,898	$ (647)
AlerisLife Inc
Real Estate
Equity method investment, difference between carrying amount and underlying equity	$ 29,500
AlerisLife Inc
Real Estate
Equity method investment ownership percentage	34.00%
Equity method investment	$ 15,740
Equity in net earnings (losses) of investees	111
AlerisLife Inc \| Equity Method Investments
Real Estate
Amortization	$ 174