Concentration of Risk - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015
Concentration Risk [Line Items]
Description of highest concentration of properties	The four states in which Ensign leases the highest concentration of properties were California, Texas, Utah and Arizona.
Skilled Nursing, Assisted Living and Independent Living Facilities [Member] | Assets Leased to Ensign [Member]
Concentration Risk [Line Items]
Number of living facilities	100
Number of units available in living facilities	10,462
Skilled Nursing, Assisted Living and Independent Living Facilities [Member] | Assets Leased to Ensign [Member] | Ensign [Member]
Concentration Risk [Line Items]
Number of living facilities	94
Number of units available in living facilities	10,121
Revenue [Member]
Concentration Risk [Line Items]
Tenant description	The Company has one major tenant, Ensign