Equity-Method Investment And Other Assets (Narrative) (Details)	3 Months Ended
Mar. 31, 2016 USD ($) properties	Dec. 31, 2015 USD ($)
Investment [Line Items]
Number of Real Estate Properties \| properties	181
Bickford Senior Living [Member]
Investment [Line Items]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity	$ 8,986,000
Net Assets Received In Acquisition of Equity-Method Investee	$ 817,000
Goodwill, Impaired, Accumulated Impairment Loss		$ 0

Line items represent reporting 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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 12
-Sentence Column A

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Net Assets Received In Acquisition of Equity-Method Investee

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- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a,h)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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

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