Real Estate and Lending Activities - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended					1 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended			6 Months Ended					3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	1 Months Ended	6 Months Ended	1 Months Ended	6 Months Ended	1 Months Ended		6 Months Ended			1 Months Ended	6 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended	1 Months Ended
	Mar. 01, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Year	Jun. 30, 2011	Jun. 30, 2012 United States	Jun. 30, 2012 Maximum	Jun. 30, 2012 Minimum	Jun. 15, 2012 HealthSouth Rehabilitation Hospital of Fayetteville	Jun. 30, 2012 Other Three Development Projects Project	Jun. 30, 2012 Other Three Development Projects Facility Project	Jun. 30, 2012 River Oaks facility	Jun. 30, 2012 Ernest	Jun. 30, 2012 Ernest	Feb. 29, 2012 Ernest	Jun. 30, 2012 Ernest Key Management Personnel	Jun. 30, 2012 Rehabilitation Hospital	Jun. 30, 2012 Acute Care Facility	Jun. 30, 2012 Bayonne Medical Center Property	Jun. 30, 2012 Florence Facility Year	Jun. 30, 2012 Denham Springs Facility	Jun. 30, 2012 Prime Health Care Services	Jun. 30, 2011 Prime Health Care Services	Jun. 30, 2012 Prime Health Care Services	Jun. 30, 2011 Prime Health Care Services	Jun. 30, 2012 Monroe Hospital	Mar. 31, 2010 Monroe Hospital	Jun. 30, 2012 Monroe Hospital Day	Jan. 31, 2011 Series of Individually Immaterial Business Acquisitions	Jun. 30, 2011 Series of Individually Immaterial Business Acquisitions Entity	Jun. 30, 2011 Series of Individually Immaterial Business Acquisitions Entity	Jun. 30, 2011 Series of Individually Immaterial Business Acquisitions Consummated Deal	Jun. 30, 2011 Series of Individually Immaterial Business Acquisitions Consummated Deal	Jan. 04, 2011 Series of Individually Immaterial Business Acquisitions Gilbert Hospital Year	Jun. 30, 2012 Series of Individually Immaterial Business Acquisitions Gilbert Hospital	Jan. 31, 2011 Series of Individually Immaterial Business Acquisitions Atrium Medical Center	Jun. 30, 2012 Series of Individually Immaterial Business Acquisitions Atrium Medical Center	Jan. 31, 2011 Series of Individually Immaterial Business Acquisitions Vibra Health Care	Feb. 04, 2011 Series of Individually Immaterial Business Acquisitions Bayonne Medical Center Year	Jun. 30, 2012 Series of Individually Immaterial Business Acquisitions Bayonne Medical Center	Jun. 30, 2012 Series of Individually Immaterial Business Acquisitions Alvarado Hospital	Feb. 09, 2011 Series of Individually Immaterial Business Acquisitions Alvarado Hospital	Feb. 14, 2011 Series of Individually Immaterial Business Acquisitions Northland Ltach Hospital	Jun. 30, 2012 Series of Individually Immaterial Business Acquisitions Northland Ltach Hospital	Jun. 13, 2012 Ernest Rehabilitation Hospital	Jun. 30, 2012 Ernest Rehabilitation Hospital	Jun. 30, 2012 Ernest Rehabilitation Hospital	May 04, 2012 Victoria, TX Acute Care Facility
Significant Acquisitions and Disposals [Line Items]
Combined purchase price and investment amount															$ 396,500,000
Purchase price of real estate															200,000,000						4,100,000													17,100,000		23,500,000			58,000,000			70,000,000	19,500,000
First mortgage loan															100,000,000
Acquisition loan made													93,200,000	93,200,000	93,200,000
Capital contribution															3,300,000	3,300,000
Number of facilities acquired																	5	7
Number of states																		7
Aggregate purchase price				200,000,000
Term of lease, year				20																25																			15
Number of lease extension options in current lease contract		3		3																																			6
Term of lease extension, years				5 years																																			5 years
Percentage of rental rate				9.00%			5.00%	2.00%
Loan secured by mortgage interest		100,000,000		100,000,000
Total investment													96,500,000	96,500,000
Preferential rate of return on loan amount														15.00%
Preferential return on remaining earnings														79.00%
Coupon payable in cash, year one								6.00%
Coupon payable in cash, year two								7.00%
Coupon payable in cash in, thereafter				10.00%
Number of beds acquired																																		19		60			278			306	35		40			26
Age of real estate acquired																																		4
Date acquired																																			Jan. 04, 2011		Jan. 31, 2011			Feb. 04, 2011	Feb. 09, 2011			Feb. 14, 2011
Lease expiration date																																		2022-05		2024-06
Date of construction																																				2009
Payments to acquire equity method investments																																						1,300,000
Ownership interest in equity																													51.00%									19.00%
Working capital loan to the joint venture																													5,200,000
Retained ownership in operating entity																													49.00%
Number of stories in building																			6
Extended current lease term expiration year																																											2028					2028
Construction completion date																																											2008-04					2013-06
Revenue contributed by acquired entity													11,100,000	15,000,000														18,000,000		5,300,000	8,500,000
Income contributed by acquired entity		19,672,000	10,825,000	39,401,000	32,133,000								11,100,000	15,000,000																3,400,000	5,400,000
Acquisition related costs													300,000	3,700,000																600,000	2,700,000	100,000	1,700,000
Number of business acquisitions in period																														5	5
Estimated total development cost											30,000,000																																		16,600,000			9,400,000
Expected facility completion date											2012 fourth quarter	First quarter of 2013																																	Early 2013
Amount funded under agreement										11,700,000																																				2,400,000
Business acquisition agreement																																															Jun. 13, 2012
Cost of land and building																				30,000,000
Number of development projects										3	3
Number of facilities											3
Sale of real estate									16,000,000
Gain (Loss)on sale of real estate									(1,400,000)
Promissory note		700,000		700,000
Advanced amount of working capital loan agreement																										29,900,000		29,900,000
Advanced amount of working capital loan agreement																										1,300,000
Interest receivable																										5,600,000		5,600,000
Period past due, in days																												90
Impairment of working capital loan recognized																											12,000,000
Valuation allowance for rent																												2,500,000
Net investment to maximum exposure																										35,900,000		35,900,000
Impairment of working capital loan estimation-patient receivables considered for first priority secured interest																												5,000,000
Impairment of working capital loan estimation-cash balance considered for first priority secured interest																												1,000,000
Amount of convertible note converted into equity interest	1,700,000
Convertible note	5,000,000
Percentage of equity shares from convertible debt	9.90%			15.10%
Remaining convertible debt after conversion of part of debt		$ 3,300,000		$ 3,300,000
Percentage of entity revenue from affiliates													11.20%	16.00%								22.10%	31.70%	24.10%	31.00%
Percentage of total assets accounted						24.00%								19.40%										20.10%	25.60%
Maximum percentage of entity's total assets invested on single property		5.00%		5.00%