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Organization - Additional Information (Detail)
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
real_estate_investment
unit
facility
bed
Real Estate Properties [Line Items]  
Number of other real estate investments | real_estate_investment 3
Preferred equity investment | $ $ 14.0
Skilled Nursing, Assisted Living and Independent Living Facilities [Member] | Assets Leased to Ensign [Member]  
Real Estate Properties [Line Items]  
Number of living facilities 158
Number of units available in living facilities | bed 15,480
Independent Living Facilities Owned and Operated by Company [Member]  
Real Estate Properties [Line Items]  
Number of living facilities 3
Number of units available in living facilities | unit 264