Real Estate and Loans Receivable - 2012 Activity - Additional Information (Detail) (USD $)	12 Months Ended											12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 2012 Activity [Member] Contract	Dec. 31, 2013 2012 Activity [Member] Maximum [Member] Ceiling [Member]	Dec. 31, 2013 2012 Activity [Member] Minimum [Member] Floor Rate [Member]	Dec. 31, 2013 2012 Activity [Member] Rehabilitation Hospital [Member] Facility	Dec. 31, 2012 2012 Activity [Member] Business Acquisitions [Member]	Dec. 31, 2013 2012 Activity [Member] Ernest [Member]	Feb. 29, 2012 2012 Activity [Member] Ernest [Member]	Dec. 31, 2013 2012 Activity [Member] Ernest [Member] Key Management Personnel [Member]	Dec. 31, 2013 2012 Activity [Member] Ernest [Member] Minimum [Member]	Dec. 14, 2012 2012 Activity [Member] Acute Care Facility [Member] Contract Bed	Dec. 31, 2013 2012 Activity [Member] Acute Care Facility [Member] Facility State	Dec. 14, 2012 2012 Activity [Member] Acute Care Facility [Member] Maximum [Member]	Jul. 03, 2012 2012 Activity [Member] Prime Health Care Services [Member] Property	Jul. 03, 2012 2012 Activity [Member] Prime Health Care Services [Member] Loans, net [Member]	Sep. 19, 2012 2012 Activity [Member] St. Mary's Regional Medical Center [Member] Series of Individually Immaterial Business Acquisitions [Member] Bed	Sep. 19, 2012 2012 Activity [Member] Roxborough Memorial Hospital [Member] Series of Individually Immaterial Business Acquisitions [Member] Bed
Significant Acquisitions and Disposals [Line Items]
Combined purchase price and investment amount										$ 396,500,000
Number of facilities acquired							5							7
Number of states														7
Aggregate purchase price				200,000,000
Term of lease, years				20 years									15 years
Number of lease extension options in current lease contract				3									3
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
Total investment									96,500,000
Acquisition loan made									93,200,000
Capital contribution											3,300,000
Preferential rate of return on loan amount									15.00%
Coupon payable in cash, year one												6.00%
Coupon payable in cash, year two												7.00%
Coupon payable in cash in, thereafter									10.00%
Agreement terms									Although there are provisions in the loan agreement that are expected to result in full payment of the 15% preference when funds are sufficient. Any of the 15% in excess of the minimum that is not paid may be accrued and paid upon the occurrence of a capital or liquidity event and is payable at maturity. The loan may be prepaid without penalty at any time.
New mortgage loan funded																	100,000,000
Number of beds at Centinela Hospital Medical Center used to secure loan																369
Maturity of mortgage loan																Dec. 31, 2022
Number of beds acquired													40					380	140
Business acquisition cost of acquired entity													10,500,000					80,000,000	30,000,000
Payments to acquire equity method investments													2,000,000
Ownership interest in equity	100.00%												25.00%
Working capital loan to the joint venture													2,500,000
Revolving loan															2,000,000
Date of properties acquired													Dec. 14, 2012
Revenue contributed by the acquired entity								46,300,000
Income contributed by the acquired entity	133,258,000	135,402,000						46,100,000
Acquisition related costs	19,494,000	5,420,000	4,184,000					5,400,000
Acquisition-related costs on consummated deals								$ 5,100,000