Mortgage And Other Notes Receivable (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 properties	Mar. 31, 2012	Dec. 31, 2012
Number of health care properties related to mortgage notes receivables	27
Allowance for Doubtful Accounts Receivable	$ 0
Financing Receivable, Recorded Investment, Nonaccrual Status	1,250,000
Mortgage notes receivable, net	80,059,000		84,250,000
Mortgage Loans On Real Estate, Impairment	4,037,000
Interest Income, Operating	1,969,000	1,702,000
Payments to Acquire Mortgage Notes Receivable	0	52,000
Number of Real Estate Properties	107
Financing Receivable, Individually Evaluated for Impairment	28,972,000
Secured By Real Estate [Member]
Mortgage notes receivable, net	64,059,000
Not Secured By Real Estate [Member]
Mortgage notes receivable, net	16,000,000
Bickford Commitment [Member]
Loans and Leases Receivable, Commitments, Fixed Rates	3,000,000
Loans and Leases Receivable, Description	3
Evaluated For Collectibility [Member]
Mortgage and Other Notes, Number of Loans	2
SeniorTrust [Member]
Mortgage notes receivable, net	15,000,000
Interest Income, Operating	$ 246,000