Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Rental income	$ 31,577						$ 114,047
Rental income				$ 35,332				$ 103,856
Tenant reimbursements				2,990				8,974
Independent living facilities	929			871			2,676	2,515
Interest and other income	808			317			2,450	1,235
Total revenues	33,314			39,510			119,173	116,580
Expenses:
Depreciation and amortization	13,420			11,351			38,759	34,227
Interest expense	7,064			6,805			21,209	21,182
Property taxes	1,025			2,990			2,307	8,974
Independent living facilities	806			766			2,232	2,226
Impairment of real estate investments	16,692			0			16,692	0
Provision for loan losses	1,076			0			1,076	0
General and administrative	3,502			3,088			11,418	9,638
Total expenses	43,585			25,000			93,693	76,247
Other income:
Gain on sale of real estate	217			0			217	2,051
Net (loss) income	$ (10,054)	$ 19,698	$ 16,053	$ 14,510	$ 13,267	$ 14,607	$ 25,697	$ 42,384
Earnings per common share:
Basic (in usd per share)	$ (0.11)			$ 0.18			$ 0.28	$ 0.54
Diluted (in usd per share)	$ (0.11)			$ 0.18			$ 0.28	$ 0.54
Weighted-average number of common shares:
Basic (in shares)	95,103			81,490			92,409	77,811
Diluted (in shares)	95,103			81,490			92,409	77,811