Accounting Policies and Related Matters (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
COVID-19 | Seniors Housing Operating
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of property operating expense	$ 4,912	$ 5,573	$ 20,067	$ 33,137