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Significant Tenant (Details) (Five Star)	3 Months Ended
	Mar. 31, 2012 Property
Senior living communities
Significant tenant disclosures
Number of properties acquired, referred as managed properties	23
Rents from significant lessee
Significant tenant disclosures
Percentage of total rents leased or managed	45.50%
Investment | Rents from significant lessee
Significant tenant disclosures
Percentage of total rents leased or managed	44.70%

X

- Definition

Represents the number of properties acquired or agreed to be acquired by the entity during the period, which are referred by the entity as managed properties.

+ References

No definition available.

+ Details

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- Details

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

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-Publisher FASB

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