Acquisitions (Details) $ in Thousands		1 Months Ended	6 Months Ended
	Apr. 16, 2015 USD ($) facilities	Aug. 05, 2015 Operations	Jun. 30, 2015 USD ($) facilities Businesses	Jun. 30, 2014 USD ($)
Business Acquisition [Line Items]
Number of Businesses Acquired | Businesses			18
Cash payment to acquire businesses			$ 64,495	$ 38,442
Land
Business Acquisition [Line Items]
Cash payment to acquire businesses			8,321	8,094
Building and improvements
Business Acquisition [Line Items]
Cash payment to acquire businesses			44,877	27,228
Furniture and fixtures
Business Acquisition [Line Items]
Cash payment to acquire businesses			2,204	1,344
Assembled occupancy acquired
Business Acquisition [Line Items]
Cash payment to acquire businesses			287	425
Other Intangible Assets [Member]
Business Acquisition [Line Items]
Cash payment to acquire businesses			360	360
Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Cash payment to acquire businesses			2,069	0
Goodwill [Member]
Business Acquisition [Line Items]
Cash payment to acquire businesses			2,512	391
Other Intangible Assets [Member]
Business Acquisition [Line Items]
Cash payment to acquire businesses			$ 3,865	$ 600
Skilled nursing facility
Business Acquisition [Line Items]
Number of Businesses Acquired | facilities			9
Assisted Living Facility [Member]
Business Acquisition [Line Items]
Number of Businesses Acquired | facilities			5
IDAHO | Assisted Living Facility [Member]
Business Acquisition [Line Items]
Number of Businesses Acquired | facilities	3
Cash payment to acquire businesses	$ 11,305
WASHINGTON | Subsequent Event | Skilled nursing facility
Business Acquisition [Line Items]
Number of Businesses Acquired | Operations		1