Business (Details) - Jun. 30, 2015		properties Number
Business [Line Items]
Number of properties in diversified portfolio	[1]	1,350
Number of states in diversified portfolio | Number		46
Controlling [Member]
Business [Line Items]
Number of properties in diversified portfolio		1,411

[1] (1)     Genesis Healthcare is in our triple-net segment. Sunrise Senior Living and Revera are in our seniors housing operating segment. Brookdale Senior Living and Benchmark Senior Living are in both our triple-net and seniors housing operating segments.