Real Estate Investments - Commitments (Details) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Jul. 31, 2016 USD ($)	Jun. 30, 2016 USD ($) property	Jun. 30, 2016 USD ($) property	Jun. 30, 2015 USD ($) property
Investment commitments
Funding			$ 33,908
Commitment Funded		$ 98,872	98,872
Real estate investment disposal activity
Gain (loss) on sale of properties		$ 1,802	$ 1,802
Real Estate Investment Completed Projects
Investment commitments
Number of Properties | property		2	2
Number of Beds/Units | property		122	122
Commitment Funded		$ 24,890	$ 24,890
Real Estate Development Commitments
Investment commitments
Funding			26,331	$ 7,806
Expansion Commitments
Investment commitments
Funding			4,087	$ 5,949
Assisted Living | Florida
Real estate investment disposal activity
Number of beds or units in property sold | property				48
Sales price				$ 1,750
Assisted Living | Real Estate Development Commitments
Investment commitments
Funding			26,331	5,976
Assisted Living | Expansion Commitments
Investment commitments
Funding			$ 1,293	3,609
Skilled Nursing | Texas
Real estate investment disposal activity
Number of properties sold | property			2
Sales price			$ 6,750
Gain (loss) on sale of properties			1,802
Skilled Nursing | Real Estate Development Commitments
Investment commitments
Funding				1,830
Skilled Nursing | Expansion Commitments
Investment commitments
Funding			$ 2,794	$ 2,340
Schools | New Jersey | Subsequent Event
Real estate investment disposal activity
Sales price	$ 3,850
Gain (loss) on sale of properties	$ (192)
Development Project | Real Estate Investment Completed Projects | Texas
Investment commitments
Number of Properties | property		1	1
Number of Beds/Units | property		56	56
Commitment Funded		$ 12,712	$ 12,712
Development Project | Real Estate Investment Completed Projects | Illinois
Investment commitments
Number of Properties | property		1	1
Number of Beds/Units | property		66	66
Commitment Funded		$ 12,178	$ 12,178