Subsequent Events - Additional Information (Detail) - Subsequent Events [Member]	1 Months Ended
	Jul. 31, 2015 USD ($) Unit bed	Aug. 10, 2015 USD ($)
Mortgage notes payable | Mortgage Notes Payable due May 30, 2017 [Member]
Subsequent Event [Line Items]
Repayment of mortgage note payable	$ 500,000
Line of Credit [Member] | KeyBank National Association [Member] | Unsecured Asset-Based Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of credit facility, borrowing capacity		$ 300,000,000.0
Shamrock Nursing and Rehabilitation Center [Member]
Subsequent Event [Line Items]
Number of beds in an acquired facility | bed	105
Facility acquisition cost	$ 8,300,000
Bristol Court Assisted Living [Member]
Subsequent Event [Line Items]
Number of units in an acquired facility | Unit	70
Number of beds in an acquired facility | bed	115
Facility acquisition cost	$ 8,500,000