Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Residency agreement term, minimum	30 days
Residency agreement term, maximum	1 year
Maximum period available for occupancy from cessation of significant construction activity	1 year
Advertising expense	$ 8,000	$ 11,000	$ 18,000
Cumulative effect of new accounting principle	7,182,598	7,058,760	7,289,950		$ 6,658,859
Cumulative Effect, Period of Adoption, Adjustment
Schedule of Equity Method Investments [Line Items]
Cumulative effect of new accounting principle				$ 2,000	$ (1,524)	[1]
Discontinued Operations
Schedule of Equity Method Investments [Line Items]
Advertising expense	$ 100	$ 3,000	$ 12,000
Building and Building Improvements
Schedule of Equity Method Investments [Line Items]
Property, plant and equipment, useful life	50 years

[1] On January 1, 2020, the Company adopted a series of Accounting Standards Updates (“ASUs”) related to accounting for credit losses and recognized the cumulative-effect of adoption to beginning retained earnings. Refer to Note 2 for a detailed impact of adoption.