Real Estate Investments - Mortgage Loans (Details) $ in Thousands	6 Months Ended
Jun. 30, 2016 USD ($) state loan item property $ / item	Jun. 30, 2015 USD ($)
Mortgage Loans
Scheduled principal payments received	$ 1,598	$ 3,482
Commitments funded	33,908
Investment Commitment	215,619
Remaining commitment	116,747
Real Estate Investment
Mortgage Loans
Gross Investments	$ 1,291,386
Percentage of Investments	100.00%
Number of Properties \| property	179
Number of states \| state	28
Number of operators \| item	28
Mortgage Loans on Real Estate
Mortgage Loans
Gross Investments	$ 235,243
Percentage of Investments	100.00%
Number of Loans \| loan	17
Number of Properties \| property	37
Number of states \| state	7
Number of operators \| item	10
Interest rate for mortgage loans, low end of range (as a percent)	7.30%
Interest rate for mortgage loans, high end of range (as a percent)	13.80%
Scheduled principal payments received	$ 953	995
Mortgage Loans on Real Estate \| Minimum
Mortgage Loans
General amortization schedule of mortgage loans	20 years
Specified basis points for annual increase in interest rate (as a percent)	0.10%
Mortgage Loans on Real Estate \| Maximum
Mortgage Loans
General amortization schedule of mortgage loans	30 years
Specified basis points for annual increase in interest rate (as a percent)	0.25%
SNF Beds \| Real Estate Investment
Mortgage Loans
Number of Beds/Units \| item	9,298
SNF Beds \| Mortgage Loans on Real Estate
Mortgage Loans
Number of Beds/Units \| item	3,788
ALF Units \| Real Estate Investment
Mortgage Loans
Number of Beds/Units \| item	5,785
ALF Units \| Mortgage Loans on Real Estate
Mortgage Loans
Number of Beds/Units \| item	270
Skilled Nursing \| Real Estate Investment
Mortgage Loans
Gross Investments	$ 534,822
Percentage of Investments	41.40%
Number of Properties \| property	69
Investment per Bed/Unit \| $ / item	62.58
Skilled Nursing \| Mortgage Loans on Real Estate
Mortgage Loans
Gross Investments	$ 220,465
Percentage of Investments	93.70%
Number of Loans \| loan	13
Number of Properties \| property	29
Investment per Bed/Unit \| $ / item	58.20
Commitments funded	$ 17,128	52,847
Skilled Nursing \| Mortgage Loans secured by skilled nursing centers
Mortgage Loans
Number of Loans \| loan	3
Number of Properties \| property	3
Proceeds received from the payoff of a mortgage loan	$ 645
Skilled Nursing \| SNF Beds \| Real Estate Investment
Mortgage Loans
Number of Beds/Units \| item	8,546
Skilled Nursing \| SNF Beds \| Mortgage Loans on Real Estate
Mortgage Loans
Number of Beds/Units \| item	3,788
Assisted Living \| Real Estate Investment
Mortgage Loans
Gross Investments	$ 649,818
Percentage of Investments	50.30%
Number of Properties \| property	101
Investment per Bed/Unit \| $ / item	117.91
Assisted Living \| Mortgage Loans on Real Estate
Mortgage Loans
Gross Investments	$ 13,569
Percentage of Investments	5.80%
Number of Loans \| loan	3
Number of Properties \| property	8
Investment per Bed/Unit \| $ / item	50.26
Assisted Living \| ALF Units \| Real Estate Investment
Mortgage Loans
Number of Beds/Units \| item	5,511
Assisted Living \| ALF Units \| Mortgage Loans on Real Estate
Mortgage Loans
Number of Beds/Units \| item	270
Range of Care \| Real Estate Investment
Mortgage Loans
Gross Investments	$ 43,907
Percentage of Investments	3.40%
Number of Properties \| property	7
Investment per Bed/Unit \| $ / item	48.36
Range of Care \| SNF Beds \| Real Estate Investment
Mortgage Loans
Number of Beds/Units \| item	634
Range of Care \| ALF Units \| Real Estate Investment
Mortgage Loans
Number of Beds/Units \| item	274
Other \| Real Estate Investment
Mortgage Loans
Gross Investments	$ 19,486
Percentage of Investments	1.50%
Number of Properties \| property	2
Investment per Bed/Unit \| $ / item	78.39
Number of parcels of land \| item	3
Other \| Mortgage Loans on Real Estate
Mortgage Loans
Gross Investments	$ 1,209
Percentage of Investments	0.50%
Number of Loans \| loan	1
Other \| SNF Beds \| Real Estate Investment
Mortgage Loans
Number of Beds/Units \| item	118
Skilled Nursing and Range Of Care properties \| Mortgage Loans on Real Estate
Mortgage Loans
Number of Loans \| loan	2
Proceeds received from the payoff of a mortgage loan		$ 2,487

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Represents the amount of investment commitments of the entity.

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Represents the basis points specified for an increase in annual interest rate on mortgage loan receivable.

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Represents the number of parcels of land.

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Represents the proceeds received from the payoff of a mortgage loan.

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Represents the number of operators associated with certain investments.

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Represents the number of states in which the entity has invested.

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Represents the per unit investment in real estate held solely for investment purposes.

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Represents the investments in real estate held solely for investment purposes expressed as a percentage.

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The highest stated interest rate within the mortgage loans included in the loan grouping.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule IV)
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The lowest stated interest rate within the mortgage loans included in the loan grouping.

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Indicates the number of mortgages under each classification.

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The number of real estate properties owned as of the balance sheet date.

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The number of units in a real estate property owned as of the balance sheet date.

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The cash inflow from proceeds from sale of receivables arising from the mortgage note on real estate; includes collections on mortgage notes receivable that are not classified as operating cash flows.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6516133

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Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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