Subsequent Events - Unconsolidated Joint Ventures (Details)	1 Months Ended	12 Months Ended
	Jan. 31, 2023 USD ($) item	Dec. 31, 2022 USD ($) item	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Subsequent Event [Line Items]
Number of beds/units		217
Income from unconsolidated joint ventures | $		$ 1,504,000	$ 1,417,000	$ 432,000
Not primary beneficiary | Joint Venture | Preferred Equity Investment
Subsequent Event [Line Items]
Number of beds/units		95
Not primary beneficiary | Joint Venture | Preferred Equity Investment | UDP | Washington
Subsequent Event [Line Items]
Number of beds/units		267
Percentage of internal rate of return		12.00%
Subsequent Event | Not primary beneficiary | Joint Venture | Preferred Equity Investment | UDP
Subsequent Event [Line Items]
Preferred equity investment in a joint venture | $	$ 13,000,000
Number of beds/units	267
Income from unconsolidated joint ventures | $	$ 1,675,000
Percentage of internal rate of return	14.00%