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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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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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.

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No definition available.

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

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INVESTMENTS IN UNCONSOLIDATED ENTITIES (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) property	Mar. 31, 2015 USD ($)	Dec. 31, 2015 property
Equity method investments
Number of real estate properties \| property	39		39
Management fees earned \| $	$ 2.3	$ 1.9
Atria
Equity method investments
Ownership interests accounted for under the equity method (as a percent)	34.00%		34.00%
Ardent
Equity method investments
Ownership interests accounted for under the equity method (as a percent)	9.90%		9.90%
Minimum
Equity method investments
Ownership interests accounted for under the equity method (as a percent)	5.00%		5.00%
Maximum
Equity method investments
Ownership interests accounted for under the equity method (as a percent)	25.00%		25.00%