Real Estate Investments, Net - Additional Information (Detail) $ in Millions	1 Months Ended		3 Months Ended
	Mar. 31, 2016 USD ($) renewal_option unit facility lease bed	Feb. 29, 2016 USD ($) renewal_option facility bed	Mar. 31, 2016 USD ($) unit facility lease bed
Investment [Line Items]
Number of facilities leased under master leases | facility	94		94
Number of facilities | facility	137		137
Number of master leases | lease	8		8
Number of facilities leased under triple-net leases | facility	40		40
Number of facilities not leased | facility	3		3
Remaining lease term			81 years
Number of facilities acquired | facility		9
Number of skilled nursing beds | bed		518
New Haven Assisted Living [Member]
Investment [Line Items]
Acquisition consideration		$ 4.9
Leases period		12 years 6 months
Leases renewal options | renewal_option		2
Leases renewal term		5 years
Anticipated initial annual lease revenues		$ 0.4
Trillium Healthcare Group [Member]
Investment [Line Items]
Acquisition consideration	$ 5.0	$ 32.7
Leases period		15 years
Leases renewal options | renewal_option		2
Leases renewal term		5 years
Anticipated initial annual lease revenues	$ 0.5	$ 3.2
Number of skilled nursing beds | bed	82		82
Priority Life Care [Member]
Investment [Line Items]
Acquisition consideration	$ 21.1
Leases period	15 years
Leases renewal options | renewal_option	2
Leases renewal term	5 years
Anticipated initial annual lease revenues	$ 1.8
Number of facilities acquired | facility	3		3
Better Senior Living Consulting [Member]
Investment [Line Items]
Acquisition consideration	$ 5.7
Leases period	14 years
Leases renewal options | renewal_option	2
Leases renewal term	5 years
Anticipated initial annual lease revenues	$ 0.5
Number of units available in living facilities | unit	74		74
Ensign Master Leases [Member]
Investment [Line Items]
Annual revenues from Master Leases during first year	$ 56.0		$ 56.0
Lease term for fixed contractual annual revenues			2 years
Escalation factor for calculating revenues after year two	0.00%		0.00%
Percentage change in the consumer price index	2.50%		2.50%