Summarized Condensed Consolidating Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ 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
Gain on sale of real estate	217			0			217	2,051
(Loss) income in Subsidiary	0			0			0	0
Net (loss) income	(10,054)	$ 19,698	$ 16,053	14,510	$ 13,267	$ 14,607	25,697	42,384
Reportable Legal Entities | Parent Guarantor
Revenues:
Rental income	0						0
Rental income				0				0
Tenant reimbursements				0				0
Independent living facilities	0			0			0	0
Interest and other income	0			0			0	0
Total revenues	0			0			0	0
Expenses:
Depreciation and amortization	0			0			0	0
Interest expense	0			0			0	0
Property taxes	0			0			0	0
Independent living facilities	0			0			0	0
Impairment of real estate investments	0						0
Provision for loan losses	0						0
General and administrative	1,095			987			3,236	2,822
Total expenses	1,095			987			3,236	2,822
Gain on sale of real estate	0						0	0
(Loss) income in Subsidiary	(8,959)			15,497			28,933	45,206
Net (loss) income	(10,054)			14,510			25,697	42,384
Reportable Legal Entities | Issuers
Revenues:
Rental income	11,702						59,709
Rental income				20,554				60,122
Tenant reimbursements				1,804				5,360
Independent living facilities	0			0			0	0
Interest and other income	808			317			1,828	1,039
Total revenues	12,510			22,675			61,537	66,521
Expenses:
Depreciation and amortization	7,756			6,833			22,989	20,488
Interest expense	7,064			6,805			21,209	21,182
Property taxes	972			1,804			2,200	5,360
Independent living facilities	0			0			0	0
Impairment of real estate investments	16,692						16,692
Provision for loan losses	1,076						1,076
General and administrative	2,407			2,101			8,110	6,740
Total expenses	35,967			17,543			72,276	53,770
Gain on sale of real estate	217						217	2,051
(Loss) income in Subsidiary	14,281			10,365			39,455	30,404
Net (loss) income	(8,959)			15,497			28,933	45,206
Reportable Legal Entities | Combined Subsidiary Guarantors
Revenues:
Rental income	19,875						54,338
Rental income				14,778				43,734
Tenant reimbursements				1,186				3,614
Independent living facilities	929			871			2,676	2,515
Interest and other income	0			0			622	196
Total revenues	20,804			16,835			57,636	50,059
Expenses:
Depreciation and amortization	5,664			4,518			15,770	13,739
Interest expense	0			0			0	0
Property taxes	53			1,186			107	3,614
Independent living facilities	806			766			2,232	2,226
Impairment of real estate investments	0						0
Provision for loan losses	0						0
General and administrative	0			0			72	76
Total expenses	6,523			6,470			18,181	19,655
Gain on sale of real estate	0						0	0
(Loss) income in Subsidiary	0			0			0	0
Net (loss) income	14,281			10,365			39,455	30,404
Elimination
Revenues:
Rental income	0						0
Rental income				0				0
Tenant reimbursements				0				0
Independent living facilities	0			0			0	0
Interest and other income	0			0			0	0
Total revenues	0			0			0	0
Expenses:
Depreciation and amortization	0			0			0	0
Interest expense	0			0			0	0
Property taxes	0			0			0	0
Independent living facilities	0			0			0	0
Impairment of real estate investments	0						0
Provision for loan losses	0						0
General and administrative	0			0			0	0
Total expenses	0			0			0	0
Gain on sale of real estate	0						0	0
(Loss) income in Subsidiary	(5,322)			(25,862)			(68,388)	(75,610)
Net (loss) income	$ (5,322)			$ (25,862)			$ (68,388)	$ (75,610)