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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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A valuation allowance for financing receivables that are expected to be uncollectible.

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Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money.

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When presenting a range of either fixed or variable rates of interest that are charged to borrowers on the carrying amount of loans, the highest stated (contractual) rate under the agreement as of the balance sheet date.

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When presenting a range of either fixed or variable rates of interest that are charged to borrowers on the carrying amount of loans, the lowest stated (contractual) rate under the agreement as of the balance sheet date.

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Notes Receivable From Real Estate Joint Ventures And Partnerships (Details) (USD $)	1 Months Ended	12 Months Ended					0 Months Ended
	Feb. 29, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Nov. 30, 2012	Apr. 30, 2010	Apr. 13, 2011 Palm Coast [Member]
Notes Receivable From Real Estate Joint Ventures And Partnerships [Line Items]
Interest rate on notes receivable - range minimum		2.90%	2.80%
Interest rate on notes receivable - range maximum		16.00%	10.00%
Notes due through various dates		Jun. 30, 2014
Allowance for uncollectible notes receivable		$ 0	$ 0
Interest income on notes receivable		3,000,000	3,400,000	4,300,000
Notes receivable from real estate joint ventures and partnerships, currently due					16,100,000
Proceeds received for settlement of notes receivable	59,200,000	75,081,000	15,687,000	20,010,000
Extinguishment of notes receivable							$ 21,900,000
Ownership percentage in joint ventures	47.80%	75.00%				50.00%	50.00%