Real Estate And Loans Receivable (Acquisitions) (Details) (USD $)	0 Months Ended	12 Months Ended					0 Months Ended		12 Months Ended	0 Months Ended	12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended	0 Months Ended	12 Months Ended			3 Months Ended		0 Months Ended	3 Months Ended			0 Months Ended		12 Months Ended	0 Months Ended	12 Months Ended				9 Months Ended	12 Months Ended										3 Months Ended							0 Months Ended				1 Months Ended		0 Months Ended
	Feb. 14, 2011	Dec. 31, 2011	Dec. 31, 2010	Jan. 31, 2011	Dec. 31, 2009	Dec. 31, 2008	Jan. 04, 2011 Gilbert Hospital [Member] years	Jan. 04, 2011 Gilbert Hospital [Member] years	Dec. 31, 2011 Gilbert Hospital [Member]	Dec. 31, 2011 Atrium Medical Center [Member]	Dec. 31, 2011 Atrium Medical Center [Member]	Jan. 31, 2011 Atrium Medical Center [Member] years	Dec. 31, 2011 Bayonne Medical Center [Member]	Feb. 04, 2011 Bayonne Medical Center [Member] years	Dec. 31, 2011 Alvarado Hospital [Member]	Feb. 09, 2011 Alvarado Hospital [Member] years	Dec. 31, 2011 Northland LTACH Hospital [Member]	Feb. 14, 2011 Kindred Healthcare Inc. [Member] years	Dec. 31, 2011 Kindred Healthcare Inc. [Member]	Dec. 31, 2011 Vibra Specialty Hospital [Member]	Jul. 18, 2011 Vibra Specialty Hospital [Member] years	Dec. 31, 2010 Triumph Hospital Clear Lake [Member]	Dec. 31, 2010 Triumph Hospital Tomball [Member] years	Oct. 14, 2011 Acute Care Hospitals [Member] years	Dec. 31, 2011 Acute Care Hospitals [Member]	Nov. 04, 2011 Acute Care Hospitals [Member] years	Sep. 30, 2011 Acute Care Hospitals [Member] years	Nov. 04, 2011 Acute Care Facility [Member]	Sep. 30, 2011 Acute Care Facility [Member] years	Dec. 31, 2011 Acute Care Facility [Member]	Jun. 17, 2011 Inpatient Rehabilitation Facilities [Member] years	Dec. 31, 2010 Inpatient Rehabilitation Facilities [Member]	Jun. 17, 2010 Inpatient Rehabilitation Facilities [Member]	Jan. 31, 2011 Vibra Health Care [Member]	Dec. 31, 2004 Vibra Health Care [Member]	Dec. 31, 2010 Business Acquisitions [Member]	Dec. 31, 2011 Business Acquisitions [Member]	Dec. 31, 2011 Business Acquisitions [Member]	Dec. 31, 2010 Business Acquisitions [Member]	Jan. 04, 2011 Business Acquisitions [Member] Gilbert Hospital [Member]	Jan. 31, 2011 Business Acquisitions [Member] Atrium Medical Center [Member]	Feb. 04, 2011 Business Acquisitions [Member] Bayonne Medical Center [Member]	Feb. 09, 2011 Business Acquisitions [Member] Alvarado Hospital [Member]	Feb. 14, 2011 Business Acquisitions [Member] Northland LTACH Hospital [Member]	Dec. 31, 2011 Business Acquisitions [Member] Kindred Healthcare Inc. [Member]	Jul. 18, 2011 Business Acquisitions [Member] Vibra Specialty Hospital [Member]	Dec. 31, 2010 Business Acquisitions [Member] Triumph Hospital Clear Lake [Member]	Dec. 31, 2010 Business Acquisitions [Member] Triumph Hospital Tomball [Member]	Dec. 31, 2011 Business Acquisitions [Member] Acute Care Hospitals [Member]	Oct. 14, 2011 Business Acquisitions [Member] Acute Care Hospitals [Member]	Dec. 31, 2010 Business Acquisitions [Member] Long Term Acute Care Hospitals [Member]	Sep. 30, 2011 Business Acquisitions [Member] Acute Care Facility [Member]	Jun. 17, 2010 Business Acquisitions [Member] Inpatient Rehabilitation Facilities [Member]	Dec. 31, 2011 Business Acquisitions [Member] Vibra Health Care [Member]	Jan. 31, 2011 Business Acquisitions [Member] Vibra Health Care [Member]	Nov. 04, 2011 Hospital Operator [Member] Acute Care Facility [Member]	Jan. 31, 2011 Former Operators [Member]	Jan. 31, 2011 Maximum [Member] Atrium Medical Center [Member]	Jan. 31, 2011 Minimum [Member] Atrium Medical Center [Member]	Oct. 14, 2011 Minimum [Member] Acute Care Hospitals [Member]
Real Estate And Lending Activities [Line Items]
Date acquired									January 4, 2011		January 31, 2011		February 4, 2011		February 9, 2011		February 14, 2011			July 18, 2011										September 30, 2011		June 17, 2010
Number of beds acquired																												350												19	60	278	306	35		40	110	75				40
Number of properties																			3					3									3																		2
Term of lease, years												15		15		10		20			15		5			15	15		15		10
Number of leases renewed																						2	2								2
Number of lease extension options in current lease contract							3	3				2		6		3		3			3					6	3
Term of lease extension, years							5	5				10		5		5		5			5			15		5	5
Rent escalations percentage								2.50%										2.75%						3.00%																																		5.00%	1.00%	1.00%
Purchase price of real estate		$ 261,104,000	$ 137,808,000		$ 421,000											$ 70,000,000												$ 75,000,000	$ 10,000,000											$ 17,100,000	$ 23,500,000	$ 58,000,000			$ 19,500,000	$ 13,000,000			$ 7,400,000	$ 30,000,000	$ 64,000,000		$ 74,000,000		$ 1,300,000
Cash paid to acquire land																									6,200,000
Lease expiration date	2028						May 2022			June 2024																					2033																2025	2026
Purchase of convertible note																												5,000,000
Equity investment																					2,500,000							50,000,000	1,400,000
Equity method investment, ownership percentage		100.00%		51.00%																	25.00%							100.00%	25.00%					19.00%																						25.00%	49.00%
Wrote off in related straight-line rent receivables																														1,000,000
Working capital loan																												20,000,000	2,000,000	15,100,000																								5,200,000
Existing mortgage loan		165,000,000	165,000,000		200,164,000	185,000,000													16,000,000																41,400,000
Mortgage loan, matures																			January 2018
Revenues contributed by acquired entity		153,707,000	153,214,000																																	4,300,000		21,200,000
Income contributed by the acquired entity		27,311,000	27,746,000																																	3,400,000		14,100,000
Acquisition related costs																																				2,000,000	4,200,000	1,900,000	1,100,000
Acquisition-related costs on consummated deals		$ 1,900,000	$ 1,100,000