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Concentration of Risk - Additional Information (Detail) - Jun. 30, 2015
state
tenant
Facility
Beds
bed
Concentration Risk [Line Items]  
Number of major tenants | tenant 1
Description of highest concentration of properties The four states in which Ensign leases the highest concentration of properties were California, Texas, Utah and Arizona.
Ensign [Member]  
Concentration Risk [Line Items]  
Number of states where Ensign leases the highest concentration of properties | state 4
Skilled Nursing, Assisted Living and Independent Living Facilities [Member] | Assets Leased to Ensign [Member]  
Concentration Risk [Line Items]  
Number of living facilities 102
Number of units available in living facilities | bed 10,647
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 | Beds 10,121
Revenue [Member]  
Concentration Risk [Line Items]  
Tenant description The Company has one major tenant, Ensign