This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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+ Details

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Long Term Investments Textuals (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010	Apr. 30, 2007
Schedule of Equity Method Investments [Line Items]
Equity income from non-consolidated real estate businesses	$ (6,197)	$ (7,207)	$ (11,101)	$ (11,778)
Equity Method Investments	20,114		20,114		10,954
Cost Method Investments	7,425		7,425		46,033	10,000
Distributions from liquidation of long-term investments	53,333		62,219
Gain recognized	19,475		23,611
Expected additional proceeds from liquidation of long term investment	2,775
Limited Partnership [Member]
Schedule of Equity Method Investments [Line Items]
Equity income from non-consolidated real estate businesses	$ (154)		$ 609	$ 2,770