Discontinued Operations (Narrative) (Details) (USD $)	12 Months Ended				12 Months Ended																							12 Months Ended
	Dec. 31, 2012 properties	Dec. 31, 2011	Dec. 31, 2010	Jan. 31, 2011	Dec. 31, 2011 Legend Healthcare [Member]	Dec. 31, 2011 ALF in Daytona [Member]	Dec. 31, 2011 Current Tenant of 2 MOB's [Member]	Dec. 31, 2012 Sunrise Senior Living [Member]	Dec. 31, 2011 Sunrise Senior Living [Member]	Dec. 31, 2010 Sunrise Senior Living [Member]	Dec. 31, 2012 National Healthcare Corporation [Member] properties	Dec. 31, 2011 National Healthcare Corporation [Member]	Dec. 31, 2010 National Healthcare Corporation [Member]	Dec. 31, 2012 Fundamental Long Term Care Holdings [Member] properties	Dec. 31, 2011 Fundamental Long Term Care Holdings [Member]	Dec. 31, 2010 Fundamental Long Term Care Holdings [Member]	Dec. 31, 2010 Legend Healthcare [Member]	Dec. 31, 2011 Current Tenant of 2 MOB's [Member]	Dec. 31, 2010 Current Tenant of 2 MOB's [Member]	Dec. 31, 2011 ALF in Daytona [Member]	Dec. 31, 2010 ALF in Daytona [Member]	Dec. 31, 2012 Disposal [Member]	Aug. 31, 2011 Disposal [Member] beds_or_units	Jan. 31, 2011 Disposal [Member]	Jun. 30, 2011 Disposal [Member] Legend Healthcare [Member] properties	Feb. 28, 2011 Disposal [Member] Current Tenant of 2 MOB's [Member] properties	Aug. 31, 2011 Disposal [Member] ALF in Daytona [Member] beds_or_units	Dec. 31, 2012 Assets Held-for-sale [Member] National Healthcare Corporation [Member] properties	Dec. 31, 2011 Assets Held-for-sale [Member] National Healthcare Corporation [Member]	Dec. 31, 2010 Assets Held-for-sale [Member] National Healthcare Corporation [Member]
Carrying value of assets sold				$ 4,039,000																		$ 11,009,000	$ 2,152,000
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds																						23,000,000	3,200,000	4,500,000		5,271,000
Number of Real Estate Properties	107										41			5											2	2		6
Real Estate, Assets Held For Sale, Sales Price																												21,000,000
Lease Extension Period in Years														3
Operating Leases, Income Statement, Lease Revenue	85,115,000	76,078,000	70,917,000								33,056,000	32,619,000	31,985,000	4,965,000	4,777,000	4,226,000
Revenues	4,671,000	5,035,000	6,219,000					1,302,000	1,372,000	1,372,000				43,000	565,000		107,000	41,000	584,000	202,000	364,000							3,368,000	3,377,000	3,227,000
Gain on sales of real estate	11,966,000	3,348,000	2,004,000		2,004,000	1,048,000	1,838,000
Number of Units in Real Estate Property																							60				60
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	4,269,000	4,592,000	5,631,000
Proceeds from Sale of Other Real Estate	22,975,000	8,971,000	6,247,000
Disposal Group, Including Discontinued Operation, Operating Expense	0	0	14,000
Depreciation, Continuing Operations	$ 16,579,000	$ 11,549,000	$ 10,601,000											$ 2,398,000