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Concentration of Risk - Additional Information (Detail)
$ in Millions
1 Months Ended 6 Months Ended
Oct. 01, 2015
USD ($)
principal
renewal_option
facility
Apr. 30, 2016
USD ($)
bed
Jun. 30, 2016
facility
state
bed
Concentration Risk [Line Items]      
Number of living facilities | facility     147
Description of highest concentration of properties     The four states in which Ensign leases the highest concentration of properties are 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 | facility     144
Number of units available in living facilities     14,038
Liberty Healthcare Portfolio [Member]      
Concentration Risk [Line Items]      
Number of facilities acquired | facility 14    
Acquisition consideration | $ $ 176.5    
Liberty Healthcare Portfolio [Member] | Pristine Master Lease [Member]      
Concentration Risk [Line Items]      
Leases period 15 years    
Leases renewal options | renewal_option 2    
Leases renewal term 5 years    
Anticipated initial annual lease revenues | $ $ 17.0    
Escalation factor for calculating revenues after year two 0.00%    
Percentage change in the consumer price index 3.00%    
Number of affiliates of the principal guaranteeing the lease | principal 2    
Victory Park Nursing Home [Member]      
Concentration Risk [Line Items]      
Number of skilled nursing beds   55  
Victoria Retirement Community [Member]      
Concentration Risk [Line Items]      
Number of skilled nursing beds   90  
Number of assisted living beds   69  
Victory Park Nursing Home and Victoria Retirement Community [Member]      
Concentration Risk [Line Items]      
Acquisition consideration | $   $ 14.7  
Anticipated initial annual lease revenues | $   $ 1.4  
Ensign [Member]      
Concentration Risk [Line Items]      
Number of states where Ensign leases the highest concentration of properties | state     4
Ensign [Member] | Skilled Nursing, Assisted Living and Independent Living Facilities [Member] | Assets Leased to Ensign [Member]      
Concentration Risk [Line Items]      
Number of living facilities | facility     94
Number of units available in living facilities     10,121