Additional financing to complete construction.

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Business Acquisition Purchase Price Allocation Net Cash Invested

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Business Acquisition Purchase Price Allocation Secured Debt.

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Minimum net present value of the future minimum lease payments to be classified as capital lease.

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Minimum part of economic life of the leased asset to be classified as capital lease.

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Number of outstanding letters of credit.

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- Definition

Percentage of interest in housing portfolio.

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- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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For an acquired entity, price of a single share of a number of saleable stocks of a company.

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Amount of minimum lease payments for capital leases.

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The current amount of expenditures for a real estate project that has not yet been completed.

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Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Contractually required future rental payments receivable on noncancelable subleasing arrangements.

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The cash outflow for the purchase of loan receivable arising from the financing of goods and services.

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Commitments and Contingencies (Details Textual) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended			3 Months Ended
	Sep. 30, 2012 Number	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2012 Sunrise [Member]	Nov. 06, 2012 Sunrise [Member]	Sep. 30, 2012 Sunrise [Member]	Dec. 31, 2012 Management Business Buyer [Member]	Sep. 30, 2012 United Kingdom [Member] Sunrise [Member]	Sep. 30, 2012 Original [Member] Sunrise [Member]	Nov. 06, 2012 Additional [Member] Sunrise [Member]
Commitments and Contingencies (Textual) [Abstract]
Number of outstanding letters of credit	9
Letter of credit obligation	$ 7,172		$ 7,172
Outstanding construction financings for leased properties	219,705		219,705		189,502
Additional financing to complete construction	217,015		217,015
Total contingent purchase obligations	76,933,000		76,933,000
Minimum part of economic life of the leased asset to be classified as capital lease	75.00%
Minimum net present value of the future minimum lease payments to be classified as capital lease.	90.00%		90.00%
Operating lease obligations relating to certain ground leases	528,685		528,685
Rental expense related to company office space	330	931	341	1,472
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	48,514		48,514
Capital Leases, Future Minimum Payments Due	88,143		88,143
Sunrise Merger [Line Items]
Purchase price per share								$ 14.50
Total purchase price							3,170,200				1,920,000
Total cash invested in real property									26,000	243,474	950,000	664,100
Assumed debt											970,000	586,100
Net cash advances on real estate loans			$ 35,894	$ 36,504		$ 462,500
Percentage of interest owned by company in partnership									20.00%