Real Estate Investments, Net - Additional Information (Detail) $ in Millions	1 Months Ended			6 Months Ended
	Jun. 30, 2015 USD ($) renewal_option Facility	Apr. 30, 2015 USD ($) renewal_option	Jan. 31, 2015 USD ($) renewal_option	Jun. 30, 2015 USD ($) Facility
Bethany Rehabilitation Center [Member]
Investment [Line Items]
Acquisition consideration			$ 18.1
Acquisition costs capitalized			$ 0.1
Leases period			15 years
Leases renewal options | renewal_option			2
Leases renewal term			5 years
Anticipated annual lease revenues			$ 1.7
Mira Vista Care Center [Member]
Investment [Line Items]
Acquisition consideration		$ 9.3
Acquisition costs capitalized		$ 0.2
Leases period		15 years
Leases renewal options | renewal_option		2
Leases renewal term		5 years
Anticipated annual lease revenues		$ 0.9
Shoreline Health And Rehabilitation Center [Member]
Investment [Line Items]
Acquisition consideration	$ 6.8
Acquisition costs capitalized	$ 0.2
Leases period	15 years
Leases renewal options | renewal_option	2
Leases renewal term	5 years
Anticipated annual lease revenues	$ 0.7
Ensign Master Leases [Member]
Investment [Line Items]
Number of facilities not leased | Facility	11			11
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%