Real Estate Schedule of New Real Estate Investments (Details)	9 Months Ended
	Sep. 30, 2019 USD ($) properties	Sep. 30, 2018 USD ($)
Real Estate Investments During The Period	$ 265,117,000
Payments to Acquire Real Estate	$ 209,227,000	$ 129,558,000
Wingate Healthcare [Member]
Number Of Real Estate Properties Acquired | properties	1
Real Estate Investments During The Period	$ 52,200,000
Payments to Acquire Real Estate	$ 50,300,000
Holiday Lease Amendment [Member]
Number Of Real Estate Properties Acquired | properties	1
Real Estate Investments During The Period	$ 38,000,000
Comfort Care Senior Living [Member] | April 2019 [Member]
Number Of Real Estate Properties Acquired | properties	1
Real Estate Investments During The Period	$ 10,800,000
Payments to Acquire Real Estate	$ 9,282,000
Comfort Care Senior Living [Member] | May 2019 [Member]
Number Of Real Estate Properties Acquired | properties	1
Real Estate Investments During The Period	$ 13,500,000
Discovery Senior Living [Member]
Number Of Real Estate Properties Acquired | properties	6
Real Estate Investments During The Period	$ 127,917,000
Cappella Living Solutions [Member]
Number Of Real Estate Properties Acquired | properties	1
Payments to Acquire Real Estate	$ 7,600,000
Bickford Senior Living [Member]
Number Of Real Estate Properties Acquired | properties	1