Real Estate Real Estate (New Real Estate Investments) (Details)	9 Months Ended
	Sep. 30, 2017 USD ($) properties
Real Estate Investments During The Period	$ 134,501,000
The Lasalle Group [Member]
Real Estate Properties, Number Acquired | properties	5
Real Estate Investments During The Period	$ 61,865,000
Prestige Senior Living [Member]
Real Estate Properties, Number Acquired | properties	1
Real Estate Investments During The Period	$ 26,200,000
Ravn Senior Solutions [Member]
Real Estate Properties, Number Acquired | properties	2
Real Estate Investments During The Period	$ 16,100,000
Ensign Group [Member]
Real Estate Properties, Number Acquired | properties	1
Real Estate Investments During The Period	$ 15,096,000
Bickford Senior Living [Member]
Real Estate Properties, Number Acquired | properties	1
Acadia Healthcare [Member]
Real Estate Properties, Number Acquired | properties	1
Real Estate Acquisition [Member] | Bickford Senior Living [Member]
Real Estate Investments During The Period	$ 10,400,000
Real Estate Acquisition [Member] | Acadia Healthcare [Member]
Real Estate Investments During The Period	$ 4,840,000