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Organization - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
investment
state
unit
facility
loan
bed
Real Estate Properties [Line Items]  
Number of living facilities 217
Number of states with properties | state 28
Number of preferred equity investments | investment 1
Preferred equity investment | $ $ 3.8
Number of mortgage loans receivable | loan 2
Mortgage Loan Receivable  
Real Estate Properties [Line Items]  
Mortgage loans | $ $ 29.5
Skilled Nursing, Assisted Living and Independent Living Facilities | Assets Leased to Independent Operators  
Real Estate Properties [Line Items]  
Number of living facilities 216
Number of operational beds and units in facilities | bed 21,963
Independent Living Facilities owned and operated by Company  
Real Estate Properties [Line Items]  
Number of living facilities 1
Number of units available in living facilities | unit 168