Significant Accounting Policies Significant Accounting Policies (Schedule of Variable Interest Entities) (Details) $ in Thousands	Jun. 30, 2018 USD ($)
Straight-Line Rent Receivable [Member] \| Bickford / Sycamore [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	$ 39,492
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	58,503
Straight-Line Rent Receivable [Member] \| Senior Living Communities [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	40,573
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	54,742
Straight-Line Rent Receivable [Member] \| East Lake Capital [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	3,877
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	3,877
Straight-Line Rent Receivable [Member] \| Senior Living Management [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	26,425
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	26,425
Straight-Line Rent Receivable [Member] \| Ravn Senior Solutions [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	454
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	454
Straight-Line Rent Receivable [Member] \| Evolve Senior Living [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	9,918
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	9,918
Straight-Line Rent Receivable [Member] \| Comfort Care Senior Living [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	6
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	6
Notes Receivable [Member] \| Life Care Services [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	56,226
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 59,763

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5728-111685

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5747-111685

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

+ References

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