Sale-Leaseback Transaction	12 Months Ended
Sale-Leaseback Transaction	Dec. 31, 2011
Facility Operating Leases [Abstract]
Sale-Leaseback Transaction	9. Sale-Leaseback Transaction On December 16, 2010, the Company entered into a sale-leaseback transaction with a third party lessor for the sale and leaseback of one of its retirement communities. The Company sold the community for a total of $33.4 million and immediately leased the community back. Under the terms of the lease agreement, the Company will continue to operate the community until December 31, 2024. The lease is accounted for as a financing lease obligation.

- Definition

The entire disclosure for sale leaseback transactions. Includes the elements of a transaction involving the sale of property to another party and the lease of the property back to the seller.

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