The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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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

Represents the gain or loss on remeasurement of equity method investment during the period as a result of acquiring the majority ownership interest of our investment previously accounted for as an equity method investment.

+ References

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- Definition

The number of properties that are accounted for under the equity method of accounting.

+ References

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- Definition

Properties Acquired Previously Owned by Equity Method Investee

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INVESTMENTS IN UNCONSOLIDATED ENTITIES (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 28, 2017 USD ($) property	Sep. 30, 2017 USD ($) property	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) property	Sep. 30, 2016 USD ($)
Equity method investments
Ownership interests accounted for under the equity method		25.00%		25.00%
Number of real estate properties \| property		30		30
Management fees earned		$ 1,600	$ 1,800	$ 4,600	$ 5,000
Purchase price				410,800
Gain on re-measurement of equity interest upon acquisition, net				$ 3,027	$ 0
Atria
Equity method investments
Ownership interests accounted for under the equity method		34.00%		34.00%
Ardent
Equity method investments
Ownership interests accounted for under the equity method		9.90%		9.90%
Seniors Housing Communities
Equity method investments
Property acquired previously owned by equity method investee \| property	6			6
Purchase price	$ 100,000
Gain on re-measurement of equity interest upon acquisition, net	$ 3,000