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Concentration of Risk - Narrative (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2019
facility
Sep. 30, 2018
Sep. 30, 2019
state
facility
bed
Sep. 30, 2018
Concentration Risk [Line Items]        
Number of living facilities 214   214  
Description of highest concentration of properties     The four states in which Ensign leases the highest concentration of properties are California, Texas, Utah and Arizona as of September 30, 2019.  
Skilled Nursing, Assisted Living and Independent Living Facilities | Assets Leased to Ensign        
Concentration Risk [Line Items]        
Number of living facilities 211   211  
Number of units available in living facilities | bed     21,583  
Ensign        
Concentration Risk [Line Items]        
Number of states where Ensign leases the highest concentration of properties | state     4  
Ensign | Skilled Nursing, Assisted Living and Independent Living Facilities | Assets Leased to Ensign        
Concentration Risk [Line Items]        
Number of living facilities 93   93  
Number of units available in living facilities | bed     9,975  
Ensign | Customer Concentration Risk | Rental Income        
Concentration Risk [Line Items]        
Concentration risk (percent) 50.00% 42.00% 40.00% 42.00%