Investment in Unconsolidated Entity and Other Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 properties	Mar. 31, 2012	Dec. 31, 2012
Investment [Line Items]
Revenues	$ 6,189	$ 0
Number of Real Estate Properties	107
Income (Loss) from Equity Method Investments	22	0
Equity Method Investments	8,375		8,353
Loan costs and prepaid expenses	1,892		2,004
Accounts receivable and others assets	2,240		1,815
Deferred Costs and Other Assets	12,507		12,172
Operating expenses, including management fees	4,056	0
Lease Expenses	2,081	0
Net Income	$ 25	$ 0
Bickford Senior Living [Member]
Investment [Line Items]
Number of Real Estate Properties	10
Joint Venture Operating Company Ownership Interest Received	85.00%
Acquisition Bickford Senior Living [Member]
Investment [Line Items]
Number of Real Estate Properties	2