Major Operators (Details)	3 Months Ended
	Mar. 31, 2020 item property
Major Operators
Number of major operators	2
Prestige Healthcare | SNF
Major Operators
Number of beds | property	24
Number of beds/units	2,922
Prestige Healthcare | ALF
Major Operators
Number of beds/units	93
Senior Lifestyle Corporation | ALF
Major Operators
Number of beds | property	23
Number of beds/units	1,457
Operator Concentration Risk | SNF
Major Operators
Number of beds | property	24
Number of beds/units	2,922
Operator Concentration Risk | ALF
Major Operators
Number of beds | property	23
Number of beds/units	1,550
Total Revenue | Operator Concentration Risk
Major Operators
Concentration risk (as a percent)	28.60%
Total Revenue | Operator Concentration Risk | Prestige Healthcare
Major Operators
Concentration risk (as a percent)	17.70%
Total Revenue | Operator Concentration Risk | Senior Lifestyle Corporation
Major Operators
Concentration risk (as a percent)	10.90%
Total Assets | Operator Concentration Risk
Major Operators
Concentration risk (as a percent)	27.40%
Total Assets | Credit Concentration Risk | Prestige Healthcare
Major Operators
Concentration risk (as a percent)	17.30%
Total Assets | Credit Concentration Risk | Senior Lifestyle Corporation
Major Operators
Concentration risk (as a percent)	10.10%