Consolidated Statements Of Operations - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Rental income	$ 187,506,000	$ 190,195,000	$ 173,612,000
Independent living facilities	0	0	2,077,000
Interest and other income	8,626,000	2,156,000	2,643,000
Total revenues	196,132,000	192,351,000	178,332,000
Expenses:
Depreciation and amortization	50,316,000	55,340,000	52,760,000
Interest expense	30,008,000	23,677,000	23,661,000
Property taxes	4,333,000	3,574,000	2,836,000
Independent living facilities			1,869,000
Impairment of real estate investments	79,062,000	0	0
Provision for loan losses, net	3,844,000	0	0
Property operating expenses	5,039,000
General and administrative	20,165,000	26,874,000	16,302,000
Total expenses	192,767,000	109,465,000	97,428,000
Other loss:
Loss on extinguishment of debt	0	(10,827,000)	0
Loss on sale of real estate, net	(3,769,000)	(77,000)	(37,000)
Unrealized loss on other real estate related investments	(7,102,000)	0	0
Total other loss	(10,871,000)	(10,904,000)	(37,000)
Net (loss) income	$ (7,506,000)	$ 71,982,000	$ 80,867,000
(Loss) earnings per common share:
Basic (usd per share)	$ (0.08)	$ 0.74	$ 0.85
Diluted (usd per share)	$ (0.08)	$ 0.74	$ 0.85
Weighted-average number of common shares:
Basic (shares)	96,703	96,017	95,200
Diluted (shares)	96,703	96,092	95,207
Independent living facilities, revenue services	Health Care, Resident Service [Member]	Health Care, Resident Service [Member]	Health Care, Resident Service [Member]
Independent living facilities, cost of services	Health Care, Resident Service [Member]	Health Care, Resident Service [Member]	Health Care, Resident Service [Member]