Significant Tenant (Details) (Five Star)	9 Months Ended
Sep. 30, 2012 item
Senior living communities
Significant tenant disclosures
Number of properties acquired, referred as managed properties	30
Rents from significant lessee
Significant tenant disclosures
Percentage of total rents leased or managed	42.60%
Investment \| Rents from significant lessee
Significant tenant disclosures
Percentage of total rents leased or managed	39.60%

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.

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

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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