Real Estate Investments - Mortgage Loan Activity (Details) - Mortgage Loans $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($) loan state property item $ / item	Mar. 31, 2017 USD ($)
Mortgage Loans
Gross Investments	$ 235,734
Percentage of Investments	100.00%
Number of Loans \| loan	5
Number of properties \| property	22
Investment per Bed/Unit \| $ / item	82.31
Specified basis points for annual increase in interest rate (as a percent)	0.25%
General amortization schedule of mortgage loans	30 years
Originations and fundings under mortgage loans receivable	$ 9,610	$ 4,384
Pay-offs received		(10,796)
Scheduled principal payments received	(37)	(162)
Net (decrease) increase in mortgage loans receivable	$ 9,573	$ (6,574)
SNF
Mortgage Loans
Number of states \| state	2
Number of operators \| state	2
Mortgage loans with 9.20% Interest Maturing 2045 \| SNF
Mortgage Loans
Interest rate for mortgage loan (as a percent)	9.20%
Gross Investments	$ 25,196
Percentage of Investments	10.70%
Number of Loans \| loan	1
Number of properties \| property	3
Investment per Bed/Unit \| $ / item	67.19
Mortgage loans with 9.40% Interest Maturing 2020 \| SNF
Mortgage Loans
Interest rate for mortgage loan (as a percent)	9.40%
Gross Investments	$ 9,429
Percentage of Investments	4.00%
Number of Loans \| loan	1
Number of properties \| property	2
Investment per Bed/Unit \| $ / item	46.00
Mortgage loans with 9.40% Interest Maturing 2045 \| SNF
Mortgage Loans
Interest rate for mortgage loan (as a percent)	9.40%
Gross Investments	$ 13,306
Percentage of Investments	5.60%
Number of Loans \| loan	1
Number of properties \| property	1
Investment per Bed/Unit \| $ / item	84.75
Mortgage loans with 9.50% Interest Maturing 2043 \| SNF
Mortgage Loans
Interest rate for mortgage loan (as a percent)	9.50%
Gross Investments	$ 186,705
Percentage of Investments	79.20%
Number of Loans \| loan	1
Number of properties \| property	15
Investment per Bed/Unit \| $ / item	91.39
Mortgage loans with 11.40% Interest Maturing 2019 \| SNF
Mortgage Loans
Interest rate for mortgage loan (as a percent)	11.40%
Gross Investments	$ 1,098
Percentage of Investments	0.50%
Number of Loans \| loan	1
Number of properties \| property	1
Investment per Bed/Unit \| $ / item	13.07
SNF Beds
Mortgage Loans
Number of beds/units \| item	2,864
SNF Beds \| Mortgage loans with 9.20% Interest Maturing 2045 \| SNF
Mortgage Loans
Number of beds/units \| item	375
SNF Beds \| Mortgage loans with 9.40% Interest Maturing 2020 \| SNF
Mortgage Loans
Number of beds/units \| item	205
SNF Beds \| Mortgage loans with 9.40% Interest Maturing 2045 \| SNF
Mortgage Loans
Number of beds/units \| item	157
SNF Beds \| Mortgage loans with 9.50% Interest Maturing 2043 \| SNF
Mortgage Loans
Number of beds/units \| item	2,043
SNF Beds \| Mortgage loans with 11.40% Interest Maturing 2019 \| SNF
Mortgage Loans
Number of beds/units \| item	84
Michigan \| SNF
Mortgage Loans
Interest rate for mortgage loan (as a percent)	8.70%
Specified basis points for annual increase in interest rate (as a percent)	2.25%
General amortization schedule of mortgage loans	5 years
Additions to mortgage loans	$ 7,400
Michigan \| SNF Beds \| SNF
Mortgage Loans
Number of beds/units \| item	112

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- Definition

Total amount of new mortgage loans and other additions on real estate during the reporting period.

+ References

No definition available.

+ Details

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Represents the amortization period of mortgage loan on real estate properties.

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The amount of principal collected on mortgage loans on real estate settled during the reporting period.

+ References

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The amount of scheduled principal payments collected on mortgage loans on real estate during the reporting period. Excludes settlement amounts (pay-offs).

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

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Total amount of new mortgage loans and other additions on real estate during the reporting period.

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Represents the number of operators associated with certain investments.

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No definition available.

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

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- Definition

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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No definition available.

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- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

Reference 2: 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)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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- Definition

Indicates the number of mortgages under each classification.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29.3)
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

Reference 2: 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)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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- Definition

Amount of increase (decrease) in mortgage loans on real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29.6)
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule IV)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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- Definition

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

+ References

No definition available.

+ Details

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

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No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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