Commitments And Contingencies (Details) (USD $)	3 Months Ended				3 Months Ended			3 Months Ended						12 Months Ended		3 Months Ended			3 Months Ended
	Mar. 31, 2013 properties	Mar. 31, 2012	Dec. 31, 2012	Mar. 31, 2013 Acquisition Bickford Senior Living [Member] properties	Mar. 31, 2013 Acquisition Helix Healthcare [Member]	Mar. 31, 2010 Acquisition Helix Healthcare [Member]	Oct. 31, 2011 Acquisition Legend Healthcare [Member] properties	Mar. 31, 2013 Bickford Commitment [Member] properties	Mar. 31, 2013 Kentucky River Commitment [Member]	Mar. 31, 2012 Kentucky River Commitment [Member]	Oct. 31, 2011 Contingent Payment [Member] Acquisition Legend Healthcare [Member]	Mar. 31, 2013 Sante Partners Commitment [Member]	Mar. 31, 2013 Construction Loans [Member] beds_or_units	Dec. 31, 2012 Legend Healthcare [Member]	Mar. 31, 2013 Legend Healthcare [Member]	Mar. 31, 2013 Bickford Senior Living [Member] properties	Mar. 31, 2013 Kentucky River [Member]	Mar. 31, 2012 Kentucky River [Member]	Mar. 31, 2013 Sante Partners [Member]
Number of Real Estate Properties To Be Constructed								3
Maximum Commitment For All Active Development Projects								$ 27,000,000								$ 27,000,000
Construction and Development Costs																5,479,000	285,000		991,000
Construction Commitment Period in Years									2
Initial lease rate				9.00%
Loans and Leases Receivable, Commitments, Fixed Rates								3,000,000
Loans and Leases Receivable, Net Amount	80,059,000		84,250,000
Significant acquisitions and disposals, acquisition costs or sale proceeds						12,500,000	55,278,000				5,478,000
Cash Paid In Settlement Of Contingent Purchase Consideration Liability														2,222,000
Business Acquisition, Contingent Consideration, Potential Cash Payment															3,256,000
Conditional future payments related to purchase/leaseback transaction					1,000,000
Lease Renewal Period In Years																		5
Number of Real Estate Properties	107			2			4									10
Loans and Leases Receivable, Description								3
Supplemental Construction Loan Commitment Draw													2,000,000
Capital improvements commitment												3,500,000
Operating Leases, Income Statement, Lease Revenue	25,050,000	21,296,000														2,081,000
Significant development and lease transactions										8,000,000
Construction of transitional rehabilitation center, number of beds													70
Real Estate Investment Property, at Cost	$ 700,834,000		$ 698,536,000